Effect of foliar application time of complete fertilizer micronutrients on yield and yield components of mungbean(Vigna radiata L.) under drought stress

Subject Areas : Journal of Plant Ecophysiology

mahmood  tohidi ¹ (Islamic Azad University Dezful Branch)

Received: 2014-08-22 Accepted : 2015-02-09 Published : 2015-10-01

Keywords: Product, growth stage, water stress, Keywords : : Spraying micronutrients,

Abstract :

Abstract To study the effect of time of application of complete micro(micro-nutrient) fertilizer on mungbean with yield and yield components, an experiment was counducted under drought stress in north Khuzestan(Dezful)as split plots arranged an Randomized Complete Block Designs(RCBD) with three replicates in 2012. Experimental factors were drough stress in three leves(120, 180 and 240‌ mm evaporation) as the main‌-plot factors, and foliar time in four levels(non-foliar, foliar in vegetative phase, foliar in flowering phase, foliar in poding phase)as sub-plot. Results showed that the grain yield, yield components such as number of pods per unit of area, number grain per pod, grain thousand weight and biological yield and harvest index under drought stress treatments, foliar application time and were their interaction. Micro-nutrient foliar increased grain yield in all treatment under drough stress, so that the highest grain yield was for the stress 120mm evaporation and foliar in vegetative amount 2304 kg/ha and lowest grain yield the stress 240mm evaporation and non-foliar amount 521 kg/ha.