Vol. 7, Issue 3 (2019)

An experiment was conducted to study the effect of gibberellic acid on growth and flowering of five genotypes of tuberose, at Horticulture farm, College of Agriculture, Nagpur, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola during the years 2015-16 and 2016-17.

The results revealed that, the maximum values in leaves plant-1 and spikes hectare-1 total chlorophyll content of leaves at 50 per cent flowering stage and length of spike, Inter florets length, longevity of spike and length and diameter of florets, minimum days required for opening of first pair of florets and 50 per cent flowering were recorded in the genotype Prajwal. Whereas, maximum days required for opening of first pair of florets and 50 per cent flowering were observed with the genotype NT-06. However, significantly maximum leaves plant-1 and chlorophyll content of leaves, early opening of first floret and 50 per cent flowering and the maximum spike yield and values for spike quality parameters viz. length of spike, Inter florets length, longevity of spike and length and diameter of florets and fresh weight of florets were noted under the treatment of GA3 100 ppm.