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Produtividade e qualidade de híbridos de tomate (Solanum lycopersicum L.) dos segmentos Santa Cruz e Italiano em função do raleio de frutos, em ambiente protegido; Yield and qualitative characterization of tomato (Solanum lycopersicum L.) hybrids of Santa Cruz and Italian types in function of fruit thinning under greenhouse environmental conditions

Shirahige, Fernando Hoshino
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 21/07/2009 Português
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Os objetivos do trabalho foram determinar o efeito do raleio de frutos sobre o rendimento e seus componentes e caracterizar qualitativamente os frutos de híbridos de tomate dos segmentos Santa Cruz e Italiano de crescimento indeterminado, cultivados em ambiente protegido, visando ao consumo in natura. Utilizaram-se 12 cultivares de tomate de mesa, sendo seis híbridos experimentais e seis testemunhas comerciais. Usou-se delineamento em blocos completos ao acaso, com parcelas divididas, com 12 tratamentos e três repetições. As parcelas foram representadas pelas cultivares e as subparcelas pelo efeito de raleio, avaliando-se plantas com e sem raleio de frutos. Avaliaram-se a produção total (PT), comercial (PC) e de frutos nãocomercializáveis (PR), massa média do fruto (MM), número de frutos por planta (FP), número de frutos por inflorescência (FI), número de lóculos por fruto (LC), comprimento (CM), largura (LR) e relação entre comprimento e largura do fruto (CM/LR), tamanho da cicatriz peduncular (CP) e espessura da parede do fruto (EP). Para as análises qualitativas dos frutos, foram avaliados o teor de sólidos solúveis (SS), acidez titulável (AT), teor de ácido ascórbico (AA), pH, relação entre SS e AT (SS/AT) e teor de licopeno (LI). Nas condições em que o presente trabalho foi realizado e baseado nos resultados obtidos...

Estudo de uma população segregante (F1) de maracujá-doce: enriquecimento do mapa de ligação e mapeamento de QTL para produção e qualidade de frutos; A study of a sweet passion fruit segregating population (F1): enrichment of the linkage map and QTL mapping for yield and fruit quality

Laperuta, Larissa Di Cássia
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 10/06/2011 Português
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A cultura do maracujá-doce (Passiflora alata Curtis, 2n = 18) não apresenta expressão comercial como à do maracujá-amarelo. No entanto, por se tratar de uma frutífera relativamente nova nos mercados, com grande potencial de expansão devido ao seu valor agregado, há necessidade de se realizarem estudos genéticos e de melhoramento visando a sua expansão comercial, que deve vir acompanhada pela geração de conhecimento científico. Assim, o objetivo deste estudo foi enriquecer o mapa genético integrado da espécie com marcadores funcionais e mapear QTL relacionados à produção e qualidade de fruto. Para tal, foi utilizada uma população F1 composta por 180 indivíduos, provenientes do cruzamento simples entre dois acessos de maracujá-doce. Para a construção do mapa de ligação, utilizou-se um algoritmo que estima, por verossimilhança, simultaneamente, a fase de ligação e a frequência de recombinação, especialmente desenhado para espécies não endogâmicas. Em paralelo, 100 genótipos dessa mesma população foram avaliados fenotipicamente em dois locais, durante dois anos, para caracteres de interesse agronômico. As análises de QTL foram feitas pelo método de mapeamento por intervalo composto e marcadores com diferentes padrões de segregação. Os dados fenotípicos mostraram que existe variabilidade genética na população F1 para ser explorada com fins de melhoramento. Um novo mapa de ligação integrado foi gerado com 1786...

Desenvolvimento, produção e qualidade de frutos de abacateiro cv. "Hass" sobre dois porta-enxertos nas condições edafoclimáticas da região central do Estado de São Paulo; Growth, fruit yield and quality of 'Hass' avocado budded onto two rootstocks in the central region of São Paulo State

Moraes, Ana Flávia Garcia
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 10/09/2014 Português
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A produção comercial brasileira de abacates ocorre em pomares implantados sobre porta-enxertos oriundos de sementes, o que resulta em grande desuniformidade das plantas com relação a tamanho da copa, produção, qualidade de frutos e suscetibilidade a patógenos do solo, principalmente Phytophthora cinnamomi, agente causal da podridão radicular, principal doença da cultura. Enquanto em outros países já é adotado o uso de porta-enxertos com características superiores que são propagados clonalmente visando minimizar esses problemas, no Brasil estes materiais ainda não foram avaliados. Durante os anos de 2010 a 2013 foi conduzido um experimento na Fazenda Jaguacy, município de Bauru, SP, com o objetivo de avaliar o desenvolvimento, produção e qualidade de frutos de abacateiro 'Hass' sobre dois porta-enxertos, sendo um proveniente de sementes ('Seedling') (T1) e o outro da cultivar Dusa obtido por propagação clonal (T2). O experimento foi conduzido seguindo um delineamento em blocos casualizados, com dois tratamentos, 5 repetições e 10 plantas por parcela, totalizando 100 plantas em avaliação. O desenvolvimento vegetativo foi obtido pela medição da altura e diâmetro das plantas, utilizados para o cálculo do volume de copa. A produção foi avaliada a partir da contagem e pesagem de todos os frutos de cada planta e também pelo cálculo da eficiência produtiva e da alternância produtiva entre anos. A qualidade dos frutos foi avaliada a partir da massa...

Efeito do raleio e do anelamento do tronco no crescimento, produção e qualidade da ameixeira japonesa

Ilha, Luciano Larruscahim Hamilton; Marodin, Gilmar Arduino Bettio; Seibert, Eduardo; Barradas, Carlos Iguacu Nogue
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: application/pdf
Português
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Na produção de ameixas (Prunus salicina Lindley) para consumo in natura, o tamanho do fruto é um dos aspectos mais valorizados. O raleio de frutos é tradicionalmente utilizado para obter, entre outros efeitos, a melhoria do tamanho dos frutos remanescentes. Uma antiga prática, que está recebendo renovada atenção, é o anelamento, que em muitas situações pode aumentar o tamanho dos frutos e antecipar a colheita. Este trabalho avaliou os efeitos do raleio manual de frutos em intensidades de 0, 25, 50 e 75%, associado ou não ao anelamento do tronco (4 mm de largura), sobre o crescimento, a produção e a qualidade da ameixeira cv. Amarelinha. O experimento foi conduzido na Estação Experimental Agronômica da Universidade Federal do Rio Grande do Sul (EEA/UFRGS) no ciclo 1995/96. O raleio foi realizado em 16/10/95, 36 dias após a plena floração, e o anelamento, sete dias após o raleio. O raleio reduziu a produção proporcionalmente à intensidade de raleio aplicada. O anelamento antecipou a colheita, diminuiu a firmeza e a acidez titulável, e aumentou a relação sólidos solúveis totais/acidez titulável dos frutos; mas diminuiu o vigor e o crescimento das plantas. Nenhum dos tratamentos alterou significativamente o peso médio dos frutos.; In the production of plums (Prunus salicina Lindley) for in natura consumption the fruit size is a very important feature. Fruit thinning is traditionally used to increase fruit size. Girdling is a practice which is deserving renewed attention...

Effects of nitrogen fertilization on fruit quality during storage of spanish ‘piel de sapo’ melon

Sánchez-Bel, Paloma; Flores, Francisco B.; Martínez-Madrid, María Concepción; Martínez-Tébar, Elena; Cabello, María Jesús; Castellanos, María Teresa; Ribas, Francisco; Romojaro, Félix
Fonte: Universidade do Algarve Publicador: Universidade do Algarve
Tipo: Parte de Livro
Publicado em //2010 Português
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Proceedings of the International Conference “Environmentally friendly and safe technologies for quality of fruit and vegetables”, held in Universidade do Algarve, Faro, Portugal, on January 14-16, 2009. This Conference was a join activity with COST Action 924.; The aim of the work is the evaluation of the effect of nitrogen fertilization on fruit quality during postharvest conservation at low temperatures. Melon cultivation was fulfilled at open air with a plastic mulch and drip irrigation (100% of crop evapotranspiration). Nitrogen fertilization was applied at 0, 50, 100 and 150 kg N ha-1. Melon fruits were harvested at 48-50 d (days) after fruit set, and stored at 9±1 ºC and 85 % RH during 10, 20 and 30 d. After each period of conservation colour, firmness, soluble solids, vitamin C and total nitrogen contents from pulp tissue were analysed. The % fruit weight loss was determined too. No influence from the level of nitrogen fertilization on the quality parameters analysed has been detected. As expected, only total nitrogen content in fruit was affected by the different fertilization treatments. During conservation fruit firmness gradually diminished, % weight loss gradually augmented and at the end of storage vitamin C content decreased. The whole set of results showed that melon plant cultivation could be carried out with low levels of nitrogen fertilization without negatively affecting quality during postharvest...

Relationship between fruit traits of custard apple trees (Annona squamosa L.)

Mariguele,Keny Henrique; Silva,Paulo Sérgio Lima e
Fonte: Universidade Federal de Viçosa Publicador: Universidade Federal de Viçosa
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2010 Português
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The objective of this study was to estimate simple and partial coefficients of correlation, as well as to divide their effects into direct and indirect using path analysis for custard apple tree traits. Twenty half-sibling progenies were evaluated in a randomized block design with five replicates, and plots consisting of four plants. Six traits were evaluated in the first cropping season (mean number of seeds per fruit and mean weight of the pericarp, pulp, pedicel, seeds per fruit, and the whole fruit), while five traits were evaluated in the first three cropping seasons (mean fruit length and width, total number of fruits ha-1, mean fruit weight (in both types of analyses), and fruit yield in kg ha-1). The results of this work led to the conclusion that doing selection based on simple correlation estimates may not be convenient, since not always a cause and effect relationship can be verified between two traits. Positive correlations were obtained between number of seeds and seed weight, and between number of fruits and yield. The greatest direct effects were those obtained for pulp weight on fruit weight and for mean number and weight of fruits on fruit yield. The most important indirect effects were obtained for number of seeds and pericarp weight...

Yield of albedo flour and pectin content in the rind of yellow passion fruit

Oliveira,Eliana Monteiro Soares de; Resende,Eder Dutra de
Fonte: Sociedade Brasileira de Ciência e Tecnologia de Alimentos Publicador: Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/09/2012 Português
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In this study, it was evaluated the influence of different shapes, sizes, and maturation stages on the yield of albedo flour and pectin content of yellow passion fruit rinds. Random samples of 40 fruits were used, and the data were compared using significance intervals at 5%. Weight, skin color, fruit size and shape, pulp yield, mesocarp thickness, amount of epicarp and mesocarp, moisture content, and pectin yield were determined. The maturation stages were defined according to measurements of the yellow color of the skin. The shape and size patterns were defined according to the length/width ratio (equatorial diameter) of fruits. It was found that the epicarp thickness was not correlated to fruit shape and size, but it was thicker in ripe fruits. The mesocarp was thiner in small ripe fruits, but it did not change with fruit shape. Pulp yield was higher in ripe fruits, and it was not influenced by shape and size of fruits. It was concluded that the content of albedo flour can account for 3.9% of the weight of processed fruits, whereas the amount of pectin powder can account for up to 0.9% of the fruit weight.

Fruit characterization of Venezuelan avocado varieties of medium oil content

Gómez-López,Vicente Manuel
Fonte: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz" Publicador: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2000 Português
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The objective of the present paper was to characterize some avocado fruit varieties to increase the information pool for this fruit. Twelve avocado varieties of medium oil content (8.09-11.12%) from a Venezuelan orchard: Wilson Popenoe, Figueroa 1, Waldin, Puebla, Schaff, Celia, Araira FM, Adolfo, Esencia de la Vega, Lawhon, Winslowson, and Lujo were characterized for pulp oil and moisture; weight (whole fruit, seed, pulp, and peel); length, width, and fruit shape; peel characteristics (roughness, color and hand peeling); and ripeness time. Differences in oil content, moisture content and fruit weight were found when compared with results reported by other authors. The variety Puebla was the lightest (107 g) and the smallest (7.90 x 4.62 cm), while Wilson Popenoe presented the highest pulp proportion (82%). Most of the varieties were ovate, with rough green peel and easy to hand peel. Peak ripeness of some varieties was at 3-12 days. Potential yields of two varieties were higher that the Venezuelan average.

Yield and fruit quality of peach scion by using rootstocks propagated by air layering and seed

Picolotto,Luciano; Fachinello,José Carlos; Bianchi,Valmor João; Manica-Berto,Roberta; Pasa,Mateus da Silveira; Schmitz,Juliano Dutra
Fonte: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz" Publicador: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2010 Português
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In rootstock propagation, several methods can be used; however few practices are adopted due to the lack of information about the behavior of stionic combinations at field. The work aimed to compare the propagation method by air layering with the traditional propagation system by seeds using the scion peach [Prunus persica (L.) Batsch] cultivar Granada. The following variables were measured: yield, fruit weight and size, skin color, flesh firmness, total soluble solids content (TSS) and titatrable acidity (TA), TSS/TA ratio, total phenols, trunk diameter and pruning mass. Yield, total phenols and titatrable acidity were higher when using the air layering propagation. There was no difference between propagation methods regarding color and diameter of fruit, flesh firmness and total soluble solid and TSS/TA ratio. Depending on propagation method, the fruit weight did not differ, nevertheless using the seed propagated Capdeboscq rootstock fruit weight was heavier. Plant behavior in each propagation method depended on the rootstock used. Scion cultivar (cv.) Granada on air layering rootstock-derived keeps similar or superior yield and same attributes of fruit quality, better than using rootstocks derived from seeds.

What lies beyond the eye: the molecular mechanisms regulating tomato fruit weight and shape

van der Knaap, Esther; Chakrabarti, Manohar; Chu, Yi Hsuan; Clevenger, Josh P.; Illa-Berenguer, Eudald; Huang, Zejun; Keyhaninejad, Neda; Mu, Qi; Sun, Liang; Wang, Yanping; Wu, Shan
Fonte: Frontiers Media S.A. Publicador: Frontiers Media S.A.
Tipo: Artigo de Revista Científica
Publicado em 27/05/2014 Português
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Domestication of fruit and vegetables resulted in a huge diversity of shapes and sizes of the produce. Selections that took place over thousands of years of alleles that increased fruit weight and altered shape for specific culinary uses provide a wealth of resources to study the molecular bases of this diversity. Tomato (Solanum lycopersicum) evolved from a wild ancestor (S. pimpinellifolium) bearing small and round edible fruit. Molecular genetic studies led to the identification of two genes selected for fruit weight: FW2.2 encoding a member of the Cell Number Regulator family; and FW3.2 encoding a P450 enzyme and the ortholog of KLUH. Four genes were identified that were selected for fruit shape: SUN encoding a member of the IQD family of calmodulin-binding proteins leading to fruit elongation; OVATE encoding a member of the OVATE family proteins involved in transcriptional repression leading to fruit elongation; LC encoding most likely the ortholog of WUSCHEL controlling meristem size and locule number; FAS encoding a member in the YABBY family controlling locule number leading to flat or oxheart shape. For this article, we will provide an overview of the putative function of the known genes, when during floral and fruit development they are hypothesized to act and their potential importance in regulating morphological diversity in other fruit and vegetable crops.

Fenologia, Produção e Pós-colheita de frutos de buriti (Mauritia flexuosa L.f) em três veredas do cerrado no estado de Goiás.; Phenologu, Production and post-harvest e fruit buriti (Mauritia flexuosa L.f) into three palm swamp of the savanna in Goias state.

MARTINS, Maria Lúcia
Fonte: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias Publicador: Universidade Federal de Goiás; BR; UFG; Doutorado em Agronomia; Ciências Agrárias
Tipo: Dissertação Formato: application/pdf
Português
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This study aimed to characterize the phenology, production and post-harvest fruit of the buriti palm tree in the Savannah as well as factors impacting on production. The study was conducted in three palm swamp with three distinct forms of occupation of the borders. The buriti palm tree were characterized as height, diameter at breast height, number of inflorescences and leaves. The number of leaves was correlated with climatic data from July 2006 to September 2009. To characterize the production were collected from three clusters per area, and determined the average weight of fruit bunches and these extrapolated data for each area. In three clusters of each palm swamp included: length of the bunch, bunch weight, fruit weight, number of rachilles, and fruit number, length rachilles, total number of loci, number of loci with fruit, no fruit locule number , and the reason the number of loci with fruits / total number of loci. Characterization were carried out fifty fruits of each of the three clusters collected in each area. The characterization of fruits were evaluated: fruit weight, diameter longitudinal, transverse diameter, transverse diameter ratio / longitudinal diameter, the pulp mass, mass of bark, seed mass, and mass of endocarp. The pulp included: pH...

Detection of two QTLs for fruit weight in cucumber (Cucumis sativus)

Heang, D.; Sato, H.; Sassa, H.; Koba, T.
Fonte: INRA. Centre de Recherche d'Avignon. Unité Génétique et Amélioration des Fruits et Légumes, Montfavet (France) Publicador: INRA. Centre de Recherche d'Avignon. Unité Génétique et Amélioration des Fruits et Légumes, Montfavet (France)
Tipo: Poster
Português
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Cucumber has variations in traits of such as fruits with different weights, shapes, spine colors, etc. These traits are controlled by either multiple or single genes. An F2 population with molecular markers such as AFLP and SSR markers was used to develop a genetic linkage map of cucumber. The two parents have a large difference in traits which led us able to detect two QTLs, fw1 and fw2, for fruit weight. Furthermore, a gene for spine morphology was also mapped on the linkage group 7. These results could be useful for comparative genetic studies as well as marker assisted selection.; Cucurbitaceae 2008. IX EUCARPIA Meeting. Avignon (France), May 21-24th, 2008

EFFECTS OF THIDIAZURON (TDZ) ON FRUITING OF TEMPERATE TREE FRUITS

PETRI,JOSÉ LUÍS; SCHUCK,ENIO; LEITE,GABRIEL BERENHAUSER
Fonte: Sociedade Brasileira de Fruticultura Publicador: Sociedade Brasileira de Fruticultura
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2001 Português
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Thidiazuron (TDZ) is a phenylurea like citokinin on cell division fruit growth and fruit shape in some deciduous fruit trees. The effects of TDZ applied during flowering on apple cultivars 'Gala' and 'Fuji" were evaluated during seven growing seasons with annual applications on the same trees. The effects on pear and kiwi fruit trees were also evaluated. Every year, TDZ significantly increased fruit set and fruit weight on apple trees. The seven-year average of the fruit set from TDZ at 10 mg.L-1 was 112.7% while the control was only 51.3%. TDZ did not affect the number of clusters. The fruit weight increased 7.0% and 18.3% when the trees were sprayed with TDZ at 10 mg.L-1 and 5 mg.L-1, respectively. TDZ also increased fruit yield per tree by 28.7% and 41.8% for the 10 mg.L-1 and 5 mg.L-1 treatments, respectively. TDZ reduced the seed number per fruit and the calcium content in the flesh fruit, but increased the fruit firmness. The fruit set increased significantly on pear cultivar Packm's Triumph treated with TDZ, and reduced the seed numbers per fruit. TDZ applied at 12.5 mg.L-1 increased fruit weight by 47,4% on "Monty" kiwi.

Produção da laranjeira-de-umbigo 'Monte Parnaso' com incisão anelar de ramos e uso de reguladores vegetais; Fruit production of ‘Monte Parnaso’ orange trees following girdling and growth regulator sprays

Koller, Otto Carlos; Schafer, Gilmar; Sartori, Ivar Antonio; Panzenhagen, Nestor Valtir; Lima, Jurandir Goncalves de
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Artigo de Revista Científica Formato: application/pdf
Português
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A laranjeira-de-umbigo ‘Monte Parnaso’ (Citrus sinensis [L.] Osbeck) tem produtividade inferior a 10 kg de frutos/planta, em função de baixa fixação e/ou retenção de frutos. Com o propósito de solucionar esse problema, no ano agrícola de 2001-2002, plantas com 11 anos de idade, enxertadas sobre Poncirus trifoliata (L.) Raf., em Butiá, Rio Grande do Sul, foram submetidas aos seguintes tratamentos: 1) Testemunha: sem anelagem e sem reguladores vegetais; 2) Incisão anelar da casca dos ramos principais, 10 dias após a queda das pétalas (02- 10-2001); 3) Incisão anelar da casca dos ramos no final da queda natural de frutos (08-11-2001); 4) Pulverização com 5 mg.L-1 de ácido giberélico (AG3), 10 dias após a queda das pétalas (02-10-2001); 5) Pulverização com 15 mg.L-1 de ácido 2,4 – diclorofenoxiacético (2,4-D), no final da queda natural dos frutos (08-11-2001); 6) Pulverização com 50 mg.L-1 de ácido diclorofenoxipropiônico (2,4-DP), no final da queda natural dos frutos (08-11-2001); 7) Pulverização com 10 mg.L-1 de AG3 + 15 mg.L-1 de 2,4-D, em maio (14-05-2001 e 11-05-2002); 8) Tratamentos 2 + 3, e 9) Tratamentos 2 + 3 + 7. O delineamento experimental adotado foi em blocos ao acaso, com 5 repetições...

Prunus hybrids rootstocks for flat peach

Legua,Pilar; Pinochet,Jorge; Moreno,María Ángeles; Martínez,Juan José; Hernández,Francisca
Fonte: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz" Publicador: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/02/2012 Português
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Peach (Prunus persica L.) is the most important stone fruit tree grown in Spain and is the second most important fruit crop in Europe. The influence of eight Prunus rootstocks (GF-677, Krymsk® 86, PADAC 97-36, PADAC 99-05, PADAC 9912-03, PADAC 0024-01, PAC 0021-01 and PAC 0022-01) on vigor, yield and fruit quality traits of 'UFO 3' flat peach cultivar was studied. The highest trunk cross sectional area was exhibited by GF-677 and the lowest by PADAC 99-05, while intermediate values were found on the other rootstocks. The highest yield efficiency was found on PADAC 99-05, PAC 0021-01, PAC 0022-01 and PADAC 0024-01 and the lowest was shown on Krymsk® 86. The fruit quality parameters measured were color, fruit and stone weights, equatorial diameter, pulp thickness, pulp yield, firmness, pH, soluble solids content and titratable acidity. 'UFO 3' grafted on GF-677 resulted in the largest fruit weight, while the smallest was on PADAC 99-05. Fruits of 'UFO 3' showed a tendency to have higher firmness, higher red colored skin and RI when grafted on PADAC 99-05.

Thinning with NAA, NAD, ethephon, urea and by hand to improve fruit quality of 'Gerdi' apricot

Taghipour,Leila; Rahemi,Majid; Assar,Pedram
Fonte: Brazilian Journal of Plant Physiology Publicador: Brazilian Journal of Plant Physiology
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2011 Português
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This research was conducted to study the effects of chemical and hand thinning on fruit quality of 'Gerdi' apricot. In the first year, three weeks after full bloom (AFB) branches of mature trees were sprayed with naphthalene acetic acid (NAA) at 10, 20, and 40 mg L-1, naphthalene acetamide (NAD) at 20, 40, and 80 mg L-1, ethephon at 50, 100 and 200 mg L-1, or urea at 0.2, 0.4, and 0.6%. In next year, hand thinning was performed as a separate experiment and leaf to fruit ratio (LFR) was adjusted to 10:1, 20:1 or 30:1 at pit-hardening stage of fruit development. In both years, NAA at 40 mg L-1, NAD at 80 mg L-1 and all concentrations of ethephon significantly increased fruit drop. All concentrations of urea significantly increased fruit drop in 2006, but only the two lower concentrations were effective in 2007. NAA at 20 and 40 mg L-1, and NAD at 40 and 80 mg L-1 increased fruit weight in 2006, but only the highest concentration of NAD was effective in 2007, while urea was effective at all concentrations in both years. Ethephon effect on fruit weight was not significant at all. Hand thinning consistently increased fruit weight, but length and diameter were increased only at a leaf to fruit ratio of 30:1. Hand thinning also increased total soluble solids (TSS)...

Influencia de diferentes patrones para cerezo en la calidad del fruto del cultivar 'Sunburst'; Effect of several rootstocks on fruit quality of 'Sunburst' sweet cherry

Jiménez Tarodo, Sergio; Garín Oliva, Ana; Betrán Aso, Jesús Ángel; Gogorcena Aoiz, Yolanda; Moreno Sánchez, María Ángeles
Fonte: Asociación Interprofesional para el Desarrollo Agrario Publicador: Asociación Interprofesional para el Desarrollo Agrario
Tipo: Artículo Formato: 506173 bytes; application/pdf
Português
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[ES] Este trabajo pretende evaluar la influencia de los patrones ‘CAB 6P’, ‘CAB 1 lE’, ‘Masto de Montañana’ (‘MM 9’), ‘MaxMa 14’, ‘MaxMa 97’, ‘GM 61/1’ (‘Damil’), ‘Colt’ y ‘Santa Lucía GF 64’ (‘SL 64’) en la calidad del fruto del cerezo ‘Sunburst’. El ensayo se ha realizado en el Valle Medio del Ebro, en un suelo pesado y calizo. Se determinaron los siguientes parámetros: tamaño (calibre), peso medio del fruto, color, firmeza y propiedades organolépticas del fruto (acidez, pH y concentración de azúcares). Además, se analizaron por cromatografia líquida (HPLC) los azúcares más importantes presentes en el zumo del fruto (glucosa, fructosa y sorbitol). Se encontraron diferencias significativas entre patrones en la concentración de azúcares, color, peso y firmeza del fruto. Los mayores pesos de fruto y calibres fueron inducidos por los patrones P. cerasus y ‘Colt’, especialmente para los años de mayor producción. Resultados preliminares indican que los patrones que inducen una mayor cantidad de sólidos solubles también parecen mostrar una mayor firmeza del fruto.; [EN] The influence of ‘CAB 6P’, ‘CAB 1 lE’, ‘Masto de Montañana’ (‘MM 9’), ‘MaxMa 14’...

Growth, yield and fruit quality of ‘Van’ and ‘Stark Hardy Giant’ sweet cherry cultivars as influenced by grafting on different rootstocks

Cantín Mardones, Celia M.; Pinochet, Jorge; Gogorcena Aoiz, Yolanda; Moreno Sánchez, María Ángeles
Fonte: Elsevier Publicador: Elsevier
Tipo: Artículo Formato: 125168 bytes; application/pdf
Português
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The definitive version is available at: http://www.sciencedirect.com/science/journal/03044238; The influence of Adara, CAB 6P, Gisela 5, MaxMa 14, Saint Lucie GF 64 (SL 64), Saint Lucie GF 405 (SL 405), and Tabel rootstocks onto vegetative growth, yield and fruit quality of ‘Van’ and ‘Stark Hardy Giant’ (SHG) sweet cherry cultivars was studied during 10 years after grafting. The experiment was performed in the Ebro Valley (Zaragoza, Spain), on a heavy and calcareous soil. Significant differences in some of these parameters such as vigour, yield, fruit size, soluble solids content (SSC), titratable acidity (TA), skin colour and fruit firmness were examined among rootstocks. In general, the highest vigour, annual and cumulative yield were induced by Adara rootstock, whereas Gisela 5 induced the lowest when grafted with both cultivars. The highest yield efficiency was induced by Gisela 5 due to its low trunk cross-sectional area (TCSA), together with Adara, CAB 6P and Tabel for ‘SHG’ cultivar. Regarding fruit quality, Adara, CAB 6P and MaxMa 14 showed, in general, the highest fruit weight and the more attractive skin colour for both sweet cherry cultivars. Furthermore, the high yield shown by Adara did not significantly affect its fruit size. Cherries of trees grafted on Adara also showed high firmness...

Prunus hybrids rootstocks for flat peach

Legua, Pilar; Pinochet, Jorge; Moreno, María Ángeles; Martínez, Juan José; Hernández, Francisca
Fonte: Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz Publicador: Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; Formato: application/pdf
Publicado em 01/02/2012 Português
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Peach (Prunus persica L.) is the most important stone fruit tree grown in Spain and is the second most important fruit crop in Europe. The influence of eight Prunus rootstocks (GF-677, Krymsk® 86, PADAC 97-36, PADAC 99-05, PADAC 9912-03, PADAC 0024-01, PAC 0021-01 and PAC 0022-01) on vigor, yield and fruit quality traits of 'UFO 3' flat peach cultivar was studied. The highest trunk cross sectional area was exhibited by GF-677 and the lowest by PADAC 99-05, while intermediate values were found on the other rootstocks. The highest yield efficiency was found on PADAC 99-05, PAC 0021-01, PAC 0022-01 and PADAC 0024-01 and the lowest was shown on Krymsk® 86. The fruit quality parameters measured were color, fruit and stone weights, equatorial diameter, pulp thickness, pulp yield, firmness, pH, soluble solids content and titratable acidity. 'UFO 3' grafted on GF-677 resulted in the largest fruit weight, while the smallest was on PADAC 99-05. Fruits of 'UFO 3' showed a tendency to have higher firmness, higher red colored skin and RI when grafted on PADAC 99-05.

Produtividade e qualidade de fruto de pessegueiro utilizando porta-enxertos propagados por alporquia aérea e semente; Yield and fruit quality of peach scion by using rootstocks propagated by air layering and seed

Picolotto, Luciano; Fachinello, José Carlos; Bianchi, Valmor João; Manica-Berto, Roberta; Pasa, Mateus da Silveira; Schmitz, Juliano Dutra
Fonte: Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz Publicador: Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; Formato: application/pdf
Publicado em 01/12/2010 Português
Relevância na Pesquisa
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Na propagação de porta-enxertos vários métodos podem ser usados, no entanto alguns são pouco utilizados devido à falta de informação sobre o comportamento das plantas a campo. Avaliou-se o método de propagação de porta-enxertos por alporquia comparado ao sistema tradicional de propagação por meio de sementes no pêssego [Prunus persica (L.) Batsch] cv. copa Granada. Avaliaram-se as seguintes variáveis: produtividade, peso de fruto, coloração da epiderme, firmeza de polpa, teor de sólidos solúveis totais (SST) e acidez titulável (AT), relação SST/AT, tamanho de fruto, fenóis totais, diâmetro de tronco, e peso de poda. A produtividade, fenóis totais e acidez titulável foram maiores quando utilizado o método de propagação por alporquia. Não houve diferenças entre os métodos de propagação para coloração e diâmetro de fruto, firmeza de polpa e sólidos solúveis totais e relação sólidos solúveis totais e acidez titulável. Dependendo do médoto de propagação, o peso do fruto não se diferencia entre os porta-enxertos. Para o porta-enxerto Capdeboscq os frutos maiores foram obtidos com a propagação com sementes. O comportamento dentro de cada método de propagação está relacionado com o tipo de porta-enxerto utilizado. A cultivar (cv.) copa Granada...