Vol. 9 No. 2
Response of biofertilizers and homo-brassinolide on growth, relative water content and yield of lentil (Lens culinaris Medik)
Author(s): A. K. BERA, K. PRAMANIK AND D. PANDA
Abstract: Biofertilizers like phosphate solubilizing bacteria (PSB) and vesicular arbuscular mycorrhizae (VAM) are known to increase nutrients availability particularly phosphorus, which is a key element of pulse production and in other hand homo-brassinolide, a steroidal compound of plant origin increased crop yield. A field experiment was conducted during the rabi season of 2009-2010 and 2010-2011 at Sriniketan, Birbhum to find out the response of biofertilizers and homo-brassinolide on growth, relative water content and yield of lentil. The experiment was laid out in factorial randomized block design with four levels of biofertilizers inoculation viz., no inoculation, (PSB, VAM and PSB+VAM) and two spraying of brassinolide viz., at pre-flowering stage and at pre-flowering+pod development stage (Homo-brassionlide). The results showed that inoculation of biofertilizers significantly improved plant height, dry matter accumulation plant-1, relative water content, yield parameters like number of pods plant-1, grain weight plant-1, 1000 grain weight, grain yield, biological yield and harvest index. Dual inoculation of PSB+VAM harvested 31.83, 8.19 and 5.90% in first year and 31.11, 7.43 and 5.85% in second year higher grain yield over no inoculation, PSB and VAM respectively. Spraying of homo-brassinolide at pre-flowering+pod development stages harvested 51.69% in first year and 42.28% in second year higher grain yield than spraying of homo-brassinolide at pre-flowering stage. The highest branches and pod plant-1, grain weight plant\' as well as grain yield ha-1 were recorded in crop receiving PSB+VAM inoculation at twice spraying of homo-brassinolide at pre-flowering and pod development stage.
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