- Arnon, OJ. (1949). PI. Physiol. 24:1-15.
- Redford, P.J. (1967). Crop Sci. 7:171-175.
- Sharma, C.P., et aI., (1989). J. PI. Nutri. 3:337-349.
- Shukla, V.c. and Prasad, K.G. (1979). J. Indian Soc. Soil Sci. 27:60-64.
The present investigations were conducted on Indian mustard (Brassica juncea L.) plants grown under field conditions. Maximum leaf area, grcwth parameters including crop grcwth rate (CGR), relative growth rate (RGR) and net assimilation rate were observed under zinc sulphate 20 kg/ha with three irrigation levels while biochemical constituents of leaves especially chlorophyll was higher under zinc sulpnate 40 kg/ha with three irrigation. The maximum seed yield was recorded in zinc sulphate 40 kg/ha with three irrigation.