Allelopahtic effect of summer sunflower on germination, Emergence and vigour index of succeeding kharif mungbean (Vigna radiata L. Wilczek) under varied sowing periods: A pot experiment

Abstract

Pot experiment was conducted during kharif season 2014 at Main Agricultural Research Station, UAS, Dharwad to know the allelopathic effect of summer sunflower on germination, emergence and vigour index of succeeding kharif mungbean (Vigna radiata L. Wilczek) under varied sowing periods. Seed germination (89.17 %) and vigour index (3167.58 at 20 DAS) were significantly higher in kharif mungbean sown in soil from summer fallow land (CS2) over kharif mungbean sown in rhizosphere soil from summer sunflower grown plot (CS1). Among the sowing periods, the crop sown after six weeks of harvest of sunflower (D6) recorded significantly higher seed germination (92.50 %) and vigour index (3366.2 at 20 DAS) over others. The interaction of these two factors was also superior over others.