info:eu-repo/semantics/article
Exogenous abscisic acid increases carbohydrate accumulation and redistribution to the grains in wheat grown under field conditions of soil water restriction
Fecha
2007-08Registro en:
Travaglia, Claudia Noemi; Cohen, Ana Carmen; Reinoso, Herminda Elmira; Castillo, Carlos; Bottini, Ambrosio Rubén; Exogenous abscisic acid increases carbohydrate accumulation and redistribution to the grains in wheat grown under field conditions of soil water restriction; Springer; Journal of Plant Growth Regulation; 26; 3; 8-2007; 285-289
0721-7595
1435-8107
CONICET Digital
CONICET
Autor
Travaglia, Claudia Noemi
Cohen, Ana Carmen
Reinoso, Herminda Elmira
Castillo, Carlos
Bottini, Ambrosio Rubén
Resumen
This work investigates the effects of abscisic acid (ABA) on physiologic parameters related to yield in wheat (Triticum aestivum) grown under field conditions with water restriction ranging between 45.7% and 49.5% of field capacity during anthesis and postanthesis. ABA (300 mg Lÿ1) was sprayed onto the plants at the beginning of shoot lengthening which significantly promoted leaf area and higher concentrations of chlorophylls and carotenoids in flag leaf at anthesis. ABA also increased soluble car- bohydrates in shoots at anthesis, which were then re- exported to the grains at maturity. This correlated with a yield increase that was achieved by a higher number and weight of grains per spike, but protein content was not significantly affected.