Effect of Foliar Application of Gibberellic Acid on Plant Growth, Flowering and Yield Attributes in Pansy (Viola × wittrockiana Gams.)

Abstract

An investigation was carried out to study the effect of foliar application GA3 on plant growth and quality attributes in Pansy (Viola × wittrockiana Gams.) during 2019-2020. The field experiment was laid out at randomized complete block design (RCBD). The 18 treatment combinations including 6 doses of GA3 i.e., 50, 100, 150, 200, 250 and 300 ppm were applied at 3 durations i.e., 30, 40 and 50 DAT along with a non-factorial control. Of them, GA3 @ 300 ppm at 40 DAT showed significant increment in plant height (34%), plant spread (32%), number of flowers per plant (25%), number of flowers per plot (25%), size of flowers (35%), flowering duration (25%), seed yield per plant (68%), seed yield per plot ( 68%) and seed yield per hectare ( 68%), number of seeds per capsule (48%), number of capsules per plant (38%) as compared to control checks whereas earliest flowering was observed due to GA3 @ 300 ppm when applied at 30 DAT.