Vol. 8, Issue 10 (2019)

Author(s):
Zuby Gohar Ansari, AS Gontia, SD Upadhyaya, Anubha Upadhyay and Yogendra Singh

Abstract:
A field experiment was conducted to study the effect of staggered dates of sowing on yield and yield contributing characters and dry matter partioning in different varieties of summer mungbean under terminal heat and water stress conditions during summer seasons of 2017-18 and 2018-19 at Research Farm, Department of Plant Physiology Jawaharlal Nehru Krishi Vishwa Vidyalaya Jabalpur (Madhya Pradesh). The experiment was laid out in a factorial randomized block design replicated thrice. The treatments consisted of three sowing environments viz., Feb 12^th, Feb 27^th and Mar 14^th and five mungbean varieties viz., PDM139, Pusa Ratna, Pusa Vishal, Pusa1431 and TJM3. Thus the study revealed that genotype PDM139 had a comparatively higher dry matter accumulation in leaves (1.63g plant^-1), stem (0.939 g plant^-1), pods weight (6.87 g plant^-1) as well as total dry matter (.79 g plant^-1) reflected in its maximum economic yield (5.78 g plant^-1 and 787.74 Kg ha^-1). Sowing carried out on 27^th Feb produced maximum seed yield due to enhancement of dry matter production and partioning of photo-assimilates in economic sinks as a result of favourable environment. Genotype PDM139 sown on 27^th Feb outyielded (6.79 g plant^-1 and 880.10 Kg ha^-1) other treatment combinations.