Allelopathic effect of tree rows on dry matter accumulation and yield of green-gram crop in northern transitional zone of Karnataka

Field experiments were conducted to study the allelopathic effect of teak and casuarina tree rows on greengram in kharif season for two consecutive years. Looking to all the crop growth and yield parameters in both sites the greengram performance was poor outside cement ring compared to inside cement ring. Growth and yield of greengram ICR was better than OCR over the distances whereas OCR the growth and yield was the poorest in 0-3m and got nullified after 9m in casuarina and 12 m in teak.