MORPHOLOGICAL AND YIELD ATTRIBUTES OF BRINJAL IN RESPONSE TO GIBBERELLIC ACID

Abstract

The experiment was conducted to investigate the growth and yield of brinjal with GA 3 at Horticultural farm, Sher-e-Bangla Agricultural University, Dhaka during period fromOctobor 2012 to February 2013. Two factors experiment included 3 brinjal varietiesviz. V 1 (BARI Begun-4), V 2 (BARI Begun-7), V 3 (BARI Begun-8) and 4 Gibberellic Acid (GA 3 ) concentrations viz. G 0 (Control), G 1 (50 ppm GA 3 ), G 2 (100 ppm GA 3 ) and G 3 (150 ppm GA 3 ) was outlined in Randomized Complete Block Design (RCBD) with three replications. Experimental results showed that variety had significant effect on allparameters except days to 1 st flowering and days to 1 st fruit set. The highest yield (50.4t/ha) was recorded in V 1 while the minimum yield (38.0 t/ha) was recorded in V 3 .Concentration of GA 3 also significantly influenced all the growth and yield attributes except number of leaves, number of branches, days to 1st flowering and days to 1 fruitset.The results showed that G 2 produced maximum yield (51.6 t/ha) while the minimumyield (32.4 t/ha) was recorded in G 0 plants. For combined effect, the highest yield (59.2t/ha) was recorded in V 1 G 2 and the lowest (28.6 t/ha) in V 3 G 0 . So, it can be concludedthat ‘BARI Begun-4’ treated with 100 ppm GA 3 combindly gave the maximum yield. st