VARIETAL SCREENING OF MUNGBEAN AGAINST WHITEFLY AND APHID

Abstract

The experiment was conducted at the Research Farm of Sher-e-Bangla Agricultural University (SAU), Dhaka during the period from March to June, 2016 with a view to screening of mungbean varieties against whitefly and aphid. Different mungbean varieties i.e. BARI Mung-1, BARI Mung-2, BARI Mung-3, BARI Mung-4, BARI Mung-5 and BARI Mung-6 were tested as treatments for this study. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data on different parameters were recorded and statistically analysed. In case of whitefly population, the lowest number of whitefly per plant was found from BARI Mung-6, while the highest number from BARI Mung-1. At early fruiting stage, the lowest infestation (3.26%) was found in BARI Mung-6, whereas the highest infestation (9.35%) in BARI Mung-1. At mid fruiting stage, the lowest infestation (4.53%) was found in BARI Mung-6 but the highest infestation (10.04%) in BARI Mung-1 At late fruiting stage, the lowest infestation (3.24%) was observed in BARI Mung-6, while the highest infestation (10.98%) in BARI Mung-1. In case of aphid population, the lowest number of aphid per plant was recorded in BARI Mung-6 and the highest number from BARI Mung-1. At early fruiting stage, the lowest infestation (3.15%) was found in BARI Mung-6, whereas the highest infestation (10.01%) in BARI Mung-1. At mid fruiting stage, the lowest infestation (4.63%) was attained in BARI Mung-6, while the highest infestation (8.58%) in BARI Mung-1. At late fruiting stage, the lowest infestation (4.70%) was observed in BARI Mung-6, while the highest infestation (11.64%) in BARI Mung-1. The highest seed yield (1.82 t/ha) was recorded in BARI Mung-6, while the lowest (1.30 t/ha) in BARI Mung-4. Among the mungbean varieties BARI Mung-6 were superior in terms of lowest whitefly and aphid infestation and also highest yield.