Effect of Deficit and Optimum Irrigation at various Growth Stages on Yield Attributes, Yield and Water Productivity of Summer Sesame

Author: P. Neeshma, K.B. Suneetha Devi, B. Shobha Rathod and A. Krishna Chaitanya

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Abstract

Water is a limited asset and experiencing competition among agricultural, industrial and domestic sectors. Plants require ample quantities of water throughout the life cycle/cropping period and water is considered as key input for agricultural production. Among all the factors for crop production, water is found to be the major impediment in reducing the yields. Deficit irrigation is a water resource management strategy that optimize the water demand with increase in crop yield thereby improving water use efficiency (WUE). A field experiment was conducted at Agricultural college, Polasa, Jagtial during summer 2021. The experiment was laid out in a randomized complete block design with eight deficit and optimum irrigated treatments (T1 to T8). Results revealed that treatment provided with 5 irrigations each at vegetative, prebloom, flowering, capsule initiation and capsule filling stages (T8) recorded higher yield attributes, yield and water productivity i.e., number of capsules plant-1

Keywords

Sesame, Deficit and optimum irrigation, Yield, Field water productivity, Crop water productivity