INFLUENCE OF NEB AND FERTILIZER ON GROWTH, YIELD AND SEED QUALITY OF BRINJAL

Abstract

ABSTRACT The study was conducted in the research field of Sher-e-Bangla Agricultural University (SAU), Dhaka-1207, during February, 2016 to May, 2016 to evaluate the influence of NEB and fertilizer on growth, yield and seed quality of brinjal. ACI variety (Happy) and BARI brinjal 7 (Singnath) were used as planting material under present study. The experiment consisted of eight different doses of NEB in combinations with inorganic fertilizers namely, T 1 = 50% recommended urea+750 ml NEB ha -1 , T = 50% recommended urea+1000 ml NEB ha -1 , T 3 = 50% recommended urea+1250 ml NEB ha 2 = 50% recommended urea+1500 ml NEB ha -1 , T = 50% recommended urea and 25% reduction of P, K, S+1000 ml NEB ha -1 , T 6 5 = 50% recommended urea and 25% reduction of P, K, S+ 1250 ml NEB ha -1 , T =50% recommended urea and 25% reduction of P, K, S+1500 ml NEB ha -1 and T 8 7 = 100% recommended fertilizer. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Significant effect of variety was observed on plant height, number of leaves plant -1 -1 , T 4 , number of branches plant , days to first flowering, number of fruits plant -1 , fruit length, fruit breadth, weight of total fruits, yield, 1000-seeds weight, germination percentage, seed vigor index, shoot length and root length. Different doses of NEB and inorganic fertilizers exerted significant effect on plant height, number of leaves plant -1 , number of branches plant -1 , stem diameter, days to first flowering, number of fruits plant -1 , fruit length, fruit breadth, weight of total fruits, yield, 1000-seeds weight, germination percentage, seed vigor index, shoot length, root length, shoot dry weight, root dry weight. Interaction effect between variety and different doses of NEB and chemical fertilizers exerted significant effect on growth, yield attributes, yield and seed quality viz., plant height, number of leaves plant , number of branches plant -1 , stem diameter, days to first flowering, number of fruits plant , fruit length, fruit breadth, weight of total fruits, yield, 1000-seeds weight, germination percentage, seed vigor index, shoot length, root length, root dry weight. The highest values in fruit weight (100.72 g), yield (34.76 t ha -1 ), germination percentage (85.33 %), seed vigor index (1546.66) were obtained with ACI variety using 50% recommended urea and 25% reduction of P, K, S + 1000 ml NEB ha -1 . While the lowest values in the respective parameters (64.22 g, 14.36 t ha -1 , 65.67 %, 970.00) respectively were observed in Singnath variety with 50% recommended urea+750 ml NEB ha -1 . It was revealed that the application of NEB as Natural Root Exudates (NRE) had the capacity to improve the performances of brinjal. Considering the yield attributes and yield of brinjal and brinjal seed, the application of 50% recommended urea and 25% reduction of P, K, S + 1000 ml NEB per hectare with ACI variety (Happy) exhibited significantly the best one. -1 -1 -1