R. SOMLA NAIK, V. UMAMAHESH*, Y. REDDI RAMU, V. RAJA RAJESWARI AND Y. YOHAN

Department of Crop Physiology, S.V Agricultural College & RARS, Tirupati-517 502.

ABSTRACT

An investigation was carried out at S.V. Agricultural College, Tirupati to know the effect of foliar application of aminoacids, growth promoting substances, micronutrients and urea on physiological parameters, yield and its attributes in blackgram. The results revealed that spraying amino acids (arginine and glutamine @ 1000 ppm) either alone or in combinations recorded significantly highest plant height, number of primary branches, number of root nodules, days to 50% flowering, SCMR values, leaf area and total dry matter. However 2 per cent urea spray also recorded on par values. Increased LAI, LAD and CGR by amino acids and 2 per cent urea spray resulted in higher dry matter production and better partitioning efficiency thus resulted significant increase in number of pods, pod yield plant-1 and seed yield kg-1.

KEYWORDS:

Foliar application – Blackgram- Amino acids – Growth promoting substances – Micro nutrients – Yield parameters