Effect of Plant Growth Regulators and Fertilizers on Growth and Yield of Sunflower (Helianthus annuus L.)

Author: Rama Devi Borra, Rajesh Singh and Punnam Chhetri

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Abstract

A field experiment was conducted during Zaid season of 2021, at CRF (Crop Research Farm) of Agronomy Department at SHUATS, Prayagraj with the objective to study Performance of plant growth regulators and fertilizers effect on growth, yield and oil content of sunflower (Helianthus annuus L.) under Randomized block design comprising of 9 treatments, with 2 different plant growth regulators from 3 different fertilizers. And result showed the growth parameters viz. Plant height (128.60cm) at 80 DAS, number of leaves per plant (22.93 g) at 60 DAS and crop growth rate (2.24) at 60 DAS in (NPK 100:50:50 + GA3 200 ppm). The Yield parameters viz. seeds per capitulum (370.00), Test weight (38.60), seed yield (1480 kg/ha), stover yield (2903.20 kg/ha), biological yield (4383.20 kg/ha), Gross returns (162800 INR/ha), Net returns (128252 INR/ha) and BC ratio (1.26) were recorded maximum with application of (NPK 100:50:50 + GA3 200 ppm). Number of unfilled seeds per capitulum (21.63) are recorded ma

Keywords

Sunflower, Nitrogen, Phosphorus and Potassium, GA3, Ethrel