Effect of gibberellic (GA3) acid on seed germination and growth of kagzi lime (Citrus aurantifolia Swingle)

Abstract

The present experiment was carried out to find out the effect of gibberellic acid (GA3) on germination, growth and survival of kagzi lime. The study revealed that gibberellic acid at 100 ppm (G3) recorded minimum days taken to germination (26.00), germination percentage (55.24%), Seedling vigour index-I (1436.94 cm) and seedling vigour index-II (104.07 gm). Significantly, highest survival percentage (63.85%), maximum shoot length (11.36 cm), number of leaves (19.26), seedling length (21.67 cm), root length (11.36 cm) and fresh weight of seedling (2.09%) were registered in G3. However, maximum polyembryony was observed in G1 (control). Hence, gibberellic acid at 100 ppm gives best result on germination, growth and survival of kagzi lime.