Physiological studies on growth analysis, yield and yield components of Mungbean (Vigna Radiata (L.)‎ Wilczek)‎ under varying intervals of irrigation and row spacing

الملخص EN

This experiment was conducted at the Agricultural Research Station/Salahaddin University/Erbil, during summer 2012 in order to study the effect of two irrigation intervals (every 5 days and every 10 days) and three row spacing (10 × 20, 10 × 30 and 10 × 40 cm) on physiological growth analysis such as leaf area index, leaf area ratio, relative growth rate, net assimilation rate, yield and its components and water use efficiency of mungbean.

Experimental design used was RCBD with split plot arrangements and the main plot consisted of two irrigation intervals, while three row spacing were kept in sub-plots.

Physiological growth measurements, yield and its components varied significantly due to variation in irrigation interval, row spacing and their interaction.

The every 5 days irrigation, 10 × 40 cm spacing and interaction of irrigation every 5 days with 40 cm produced the highest values in most of these characters based on individual plant, while irrigating every 5 days with 10 × 20 cm spacing produced the highest seed yield per unit area (321.18 g/m2) in addition to water use efficiency, which can be the optimum treatment combination for maximum yield of mungbean under summer conditions of Erbil.