Studies on influence of biostimulants and biofertilizers on bulbs, bulblets and spike yield of tuberose (Polianthes tuberosa L.) CV. Prajwal

Abstract

The present experiment entitled “Studies on influence of biostimulants and biofertilizers on bulbs, bulblets and spike yield of tuberose (Polianthes tuberose L.) cv. Prajwal” was carried out at Fruit Research Station, Lal Baugh Farm, Department of Horticulture, Junagadh Agricultural University, Junagadh (Gujarat) during March 2016 to February 2018. The experiment was laid out in Randomized Block Design with factorial concept (FRBD) consisting two factors with three repetitions. Five treatments of biostimulants and three treatments of biofertilizers were considered as treatment combinations. The results indicated that combined application of humic acid @ 0.2% with Azotobacter @ 3 ml/m2 + PSB @ 3 ml/m2 + KSB @ 3 ml/m2 at five spray (1st, 2nd, 3rd, 5th and 7th month after planting) of biostimulants and soil application of biofertilizers at the time of planting and 3rd & 6th month after planting and or ratooning enhanced the bulbs, bulblets and spike yield production in tuberose cv. Prajwal. While, maximum number of florets per spike was increased with treatment combination of panchgavya @ 3.0% with Azotobacter @ 3 ml/m2 + PSB @ 3 ml/m2 + KSB @ 3 ml/m2 at five spray (1st, 2nd, 3rd, 5th and 7th month after planting) of biostimulants and soil application of biofertilizers at the time of planting and 3rd & 6th month after planting and or ratooning.