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University of Agricultural Sciences, Raichur (2012)

FIELD EVALUATION OF SELECTED HYDROPHILIC POLYMER FOR ENHANCING WATER PRODUCTIVITY IN SUNFLOWER (Helianthus annuus L.)

MUNEER BALENAVAR

Titre : FIELD EVALUATION OF SELECTED HYDROPHILIC POLYMER FOR ENHANCING WATER PRODUCTIVITY IN SUNFLOWER (Helianthus annuus L.)

Auteur : MUNEER BALENAVAR

Université de soutenance : University of Agricultural Sciences, Raichur

Grade : Master of Technology (Agricultural Angineering) 2012

Résumé partiel
A complete Randomized Block Design field experiment with four replications was conducted at Main Agriculture Research Station, University of Agricultural Sciences, Raichur, to study the Field evaluation of selected hydrophilic polymer for enhancing water productivity in sunflower (Helianthus annuus). The treatments consisted of different concentrations of hydrophilic polymer applied into the soil at the time of sowing of sunflower. Treatments were 1.2, 1.4, 1.6, 1.8 and 2.0 gm of polymer per spot and control. The ability of the soil to retain water increased with increasing hydrogel concentrations. The hydrophilic polymer can be used in arid and semi-arid areas to enhance the drought tolerance. Water availability is one of the most important factors influencing plant growth. Water absorbing polymers have been reported to be effective tools in increasing water holding capacity, moisture retention, water use efficiency, and growth properties of sunflower. The studied growth characteristics including plant height, number of leaves, leaf area index (LAI), head diameter, 100-seed weight and grain yield. Recorded highest soil moisture retention was 14.75% for T6 and 8.0% lowest for untreated soil T1. Consequently there were substantial increases in water use efficiency of sunflower plants grown in soils treated with polymers

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Page publiée le 1er avril 2021