Análise da capacidade combinatória em cruzamentos dialélicos de três cultivares de jiloeiro

Carvalho, A. C. P. P. de; Ribeiro, R. L. D.

doi:10.1590/s0102-05362002000100009

Cited by 2 publications

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“…In both experiments, there was a prevalence of additivity effects in the inheritance of traits for the traits SW, NSP and PH, due to the significance given only by GCA. Additive genetic effects are fixed over successive generations and especially important for autogamous species (Carvalho & Ribeiro, 2002).…”

Section: Resultsmentioning

confidence: 99%

Análise da capacidade combinatória em feijoeiro comum submetido ao déficit hídrico

et al. 2015

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This paper aimed at selecting parents to compose a common bean breeding program for drought tolerance. General and specific combining abilities were evaluated under controlled conditions, using drought tolerant parents (BAT 477 and SEA 5), elite cultivars developed at IAC (IAC Alvorada and IAC Carioca Tybatã) and their progenies obtained from a complete diallel, including the reciprocals. Sowing was done in soil following a randomized block design with three replications for both experiments, the control with irrigation and the drought stress experiment imposed from pre-flowering stage. Plants remained under drought stress for 30 days. Physiological and morphological traits as well as yield components and grain yield were evaluated, detecting additive and non-additive effects controlling these traits. The parents used in this study had contributed in different proportions in the crosses they participated in. Regarding the drought stress condition in the pre-flowering stage, the parents SEA 5 and IAC Alvorada presented greater positive effects for the general combining ability for the yield and weight of one thousand seeds, whereas the parent SEA 5 also showed a positive effect for the number of seeds per pod, suggesting the increase of these traits in the crosses they participated in. The hybrid combinations SEA 5 × IAC Alvorada showed a positive result for grain yield, related to the higher positive effect for specific combining ability and because they have as parents the cultivars which confer the best positive values for general combining ability.

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Section: Resultsmentioning

confidence: 99%

Análise da capacidade combinatória em feijoeiro comum submetido ao déficit hídrico

et al. 2015

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Desempenho de cultivares de jiló em casa de vegetação

Novo

Trani²,

Rolim

et al. 2008

Bragantia

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O experimento foi instalado em vasos plásticos, em casa de vegetação em Campinas (SP). Duas cultivares comerciais de jiló -Solanum gilo Raddi -(Comprido Verde-Claro e Esmeralda) e duas introduzidas pelo IAC (Bernacci e Cardoso) foram avaliadas em relação ao desenvolvimento vegetativo e à produtividade. As mudas foram produzidas em bandejas de poliestireno com 128 células e, o transplantio foi realizado aos 40 dias após a semeadura quando estavam no estádio de quatro a cinco folhas definitivas. Aos 30, 60 e 90 dias após o transplantio, avaliaram-se o número de folhas, a altura, a área foliar e as biomassas fresca e seca da parte aérea. Após o início da frutificação, semanalmente, foram colhidos os frutos e avaliaram-se diâmetros, comprimentos e biomassa fresca. As cultivares de jiló Esmeralda e Comprido Verde-Claro produziram frutos mais precoces em relação às cultivares Bernacci e Cardoso. Estas últimas produziram frutos por período mais prolongado. O jiló 'Cardoso' foi o mais produtivo quanto ao número total de frutos e à biomassa fresca total. As cultivares Bernacci e Cardoso da coleção do IAC, com potencial para o melhoramento genético, podem ainda ser utilizadas no sistema de produção de subsistência ou na agricultura familiar que são os sistemas tradicionais de cultivo de jiló.Palavras-chave: Solanaceae, hortaliça, crescimento de plantas, produção. ABSTRACT PERFORMANCE OF JILO CULTIVARS IN GLASSHOUSE CONDITIONSThe experiment was carried out in plastic pots in a glasshouse, in Campinas, São Paulo State, Brazil. Two commercial Solanum gilo Raddi cultivars (Comprido Verde-Claro and Esmeralda) and two introduced by IAC (Bernacci and Cardoso) were evaluated as to their vegetative development and fruit yield. The transplantings were produced in polystyrene trays with 128 cells and the transplant was done 40 days after sowing when the plants had four or five true leaves. The number of leaves, the height, leaf area and the fresh and dry shoot weight were evaluated 30, 60 and 90 days after transplant. Weekly, after fruiting began, the fruits were picked and their diameter, length and fresh biomass were measured. 'Esmeralda' and 'Comprido Verde-Claro' showed premature fruit production when compared to Bernacci and Cardoso cultivars. The latter cultivars yielded fruits for longer period of time. Cardoso cultivar produced a bigger number and a larger total fresh fruit biomass than the other genotypes. Bernacci and Cardoso cultivars of IAC germoplasm collection showed to be genotypes with potential to be used in genetic improvement, in familiar agriculture and in the system of support production and they are the traditional ways of jilo cultivation.

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Análise da capacidade combinatória em cruzamentos dialélicos de três cultivares de jiloeiro

Cited by 2 publications

References 1 publication

Análise da capacidade combinatória em feijoeiro comum submetido ao déficit hídrico

Análise da capacidade combinatória em feijoeiro comum submetido ao déficit hídrico

Desempenho de cultivares de jiló em casa de vegetação

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