Abstract
Changes in endogenous levels of IAA, GA 3 and ABA during in vivo fibre growth of Gossypium arboreum L. cv. LD 230 revealed an overriding influence of ABA in restricting the rate of fibre elongation. No relationship between IAA levels and extent of fibre elongation was discernible. The fibre growth of unfertilized cotton ovules cultured in vitro was promoted by the application of fluridone, an inhibitor of ABA biosynthesis. Fluridone resulted in a marked reduction of ABA concomitant with an increase in IAA and GA3 levels of cultured cotton ovules. The relationship of ABA with IAA and gibberellin is shown to have regulatory influence in determining the extent of cotton fibre elongation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
