Data/hora: 09/06/2024 05:32:55

Provedor de dados: | 42
País: | Brazil
Título: | Branching, flowering and fruiting of Jatropha curcas treated with ethephon or benzyladenine and gibberellins
Autores: | Costa,Anne P.; Vendrame,Wagner; Nietsche,Sílvia; Crane,Jonathan; Moore,Kimberly; Schaffer,Bruce.
Data: | 2016-06-01
Ano: | 2016
Palavras-chave: | BA + GA4 + 7; Branching; Ethephon; Flowering; Fruiting; Jatropha.
Resumo: | Jatropha curcas L. has been identified for biofuel production but it presents limited commercial yields due to limited branching and a lack of yield uniformity. The objective of this study was to evaluate the effects of single application of ethephon or a combination of 6-benzyladenine (BA) with gibberellic acid isomers A4 and A7 (GA4+7) on branch induction, flowering and fruit production in jatropha plants with and without leaves. Plants with and without leaves showed differences for growth and reproductive variables. For all variables except inflorescence set, there were no significant statistical interactions between the presence of leaves and plant growth regulators concentration. The total number of flowers per inflorescence was reduced as ethephon concentration was increased. As BA + GA4 +7 concentration increased, seed dry weight increased. Thus, ethephon and BA + GA4 +7 applications appeared to affect flowering and seed production to a greater extent than branching. The inability to discern significant treatment effects for most variables might have been due to the large variability within plant populations studied and thus resulting in an insufficient sample size. Therefore, data collected from this study were used for statistical estimations of sample sizes to provide a reference for future studies.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300989
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201620140635
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.88 n.2 2016
Fonte: | info:eu-repo/semantics/openAccess