Why spray Gibberellic acid?

• Gibberellic acid can also be written as GA3.

• We spray hybrid rice seed production plots with GA3 to:

• • adjust plant height of both parents.

  • increase the growth rate of secondary and tertiary tillers so that they bear panicles.

In the seed parent, GA3:

• enhances panicle exertion from the flag leaf.

• increases the duration of floret opening.

• increases the rate of stigma exertion and lengthens