Yield and yield components of greengram [Vigna radiata (L.) Wilczek] as influenced by cropping system,row proportions and greengram population levels

Abstract

A field experiment was conducted at Agricultural Research Station, Gulbarga, Karnataka on vertisols during Kharif seasons of 1992-93 and 1993-94 to study the influence of cropping system, row proportions and greengram population levels on yield and yield components of greengram viz., number of seeds pod, number of seeds plant", seed weight plant', number of pods plant', dry matter accumulation in pods plant-1, 100 seed weight and protein content and its yield. Intercropping of greengram with pigeonpea significantly reduced the seed yield of greengram (5.56 q ha) as compared to the sole crop of greengram (11.04 q ha'). Similarly, efffect of intercropping was reflected on all the yield attributes. The protein content of greengram was not influenced by cropping system whereas protein yield was significantly reduced under intercropping when compared to sole cropped greengram. The reduction in the seed yield of greengram under 2:1 was 26 per cent when compared to 2:2 row proportion of pigeonpea and greengram. The protein content of greengram was not sigfnificantly influenced by row proportions while significantly higher protein yield of 1.33 q ha was recorded under 2:2 row proportion. Seed and protein yields were significntly higher under 100 per cent population level of greengram when compared to 50 per cent population level.