23 Kas 2024 Cumartesi
Incidence of thrips population on mung bean concerning abiotic factors at various sowing dates within a season
Abstract : Abiotic factors play an important role in the incidence of thrips on mung bean. In this study, we investigated the effect of abiotic factors on the incidence of thrips on mung bean at various sowing dates in the Kharif-1 season, 2019. Eight sowing dates at 7 days intervals starting from 16 February 2019 to 6 April 2019 were considered as treatments. The incidence of Megalurothrips usitatus and Thrips palmi was higher in early (16 February-23 February) and late sown (30 March-6 April) crops than in mid-sown (2 March-23 March) crops. The frequency and population variation of thrips were significantly influenced by the typical weather conditions of the cropping season. During Kharif-1, M. usitatus and T. palmi on mung bean showed a significant positive link with temperature but a negative relationship with rainfall and relative humidity. There was a negative correlation between thrips in the blooms and mung bean yield. The optimum weather circumstances favored the crop with higher yield and fewer thrips infestation in the mid-sowings. Mung bean should therefore be sowed between 2 March and 23 March, with the best time to do so being on or around 16 March to provide a greater yield with fewer thrips infestation.