1. It is an efficient and effective growth hormone, which stimulates the cell elongation, thus can be used to enhance panicle exsertion in CMS line. Besides, GA3 has the following favourable effects:
i. Increases the duration of floret opening
ii. Increases stigma exsertion and receptivity
iii. Promotes plant height
iv. Influences flowering and hence flowering in parental lines can be adjusted
v. Widens the flag leaf angle
vi. Promotes exsertion and growth rate of secondary and tertiary tillers.
Agro Techniques for Hybrid Rice Cultivation and Seed Production - 2005, DRR Training Manual