Response of okra planted under plastic tunnel to soil mulching , pinching and spraying liqurice root extract on growth and yield

Abstract

The experiment was conducted during winter season (2015-2016) at Abol-Kassib , Basra region area . The aim of study to show the effect of mulching by black polyethylene ( mulching and non-mulching ) and pinching of apical bud (pinching and non-pinching) moreover spraying by foliar liqurice extract at two conc. ( 0, 50) mg. L-1 . Complete Randomized Block Design was used as factorial experiment with applied Duncan's test to mean comparision. The results showed that the plants were grown in mulched soil significantly increase in length of plant , number of total leaves , leaves area, total chlorophyll in leaves, weight of fruits , yield of plant and total yield. Plants were treated with liqurice extract had significant increase in length of plants, diameter of stem , number of sides branches , leaves area , total chlorophyll in leaves , number of fruits , yield of plant and total yield. There is no significant increase at all characters in plants which pinched expect in number of side branches and number of total leaves. The interaction between study factors had significant affect in some paramatars.