Effect of sulphur and plant-growth regulators on growth, yield and economics of summer groundnut (Arachis hypogaea)

Saini, C. and Jain, N.K. and Mathukia, R.K. (2016) Effect of sulphur and plant-growth regulators on growth, yield and economics of summer groundnut (Arachis hypogaea). Indian Journal of Agronomy, 61 (1). pp. 115-118.

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Abstract

A field experiment was carried out during summer 2014 at summer Junagadh, Gujarat, to study the effect of sulphur and plant-growth regulators on growth, yield and economics of summer groundnut (Arachis hypogaea L.). Sulphur fertilization up to 40 kg S/ha significantly increased plant height, dry-matter accumulation (60 days after sowing, DAS), total chlorophyll content (55 DAS) and mature pods/plant, whereas, dry-matter accumulation at 90 DAS and at harvesting, immature pods/plant, weight of mature and immature pods/plant, and 100-kernel weight increased significantly up to 20 kg S/ha. Significantly higher number of total and effective root nodules/plant (60 DAS), and shelling outturn were recorded at 40 kg S/ha over the control. Significantly higher pod and haulm yields were realized with the application of 20 kg S/ha by 21.9 and 13.0% over the control respectively. An additional net returns of 18.3 × 103/ha were obtained with the application of 40 kg S/ha in comparison to the control with the highest benefit: cost ratio (1.99:1). Maximum plant height, dry-matter accumulation (60 and 90 DAS, and at harvesting), total chlorophyll content (55 DAS), number and weight of mature and immature pods/plant were recorded with the foliar spray of NAA @ 40 ppm twice at 25 and 50 DAS, whereas the maximum number of effective root nodules/plant at 60 DAS and 100-kernel weight were recorded with the application of GA3 @ 20 ppm twice at 25 and 50 DAS. Application of NAA @ 40 ppm twice at 25 and 50 DAS significantly enhanced the pod and haulm yields by 33.8 and 18.1% over the control, respectively, and was at par with GA3 @ 20 ppm twice at 25 and 50 DAS. In comparison to the control, the maximum additional net returns of 21.2 × 103/ha and benefit: cost ratio (2.01:1) were also obtained under this treatment.

Item Type: Article
Uncontrolled Keywords: Economics, Plant-growth regulators, Sulphur, Summer groundnut, Yield
Author Affiliation: College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362 001
Subjects: Plant Protection
Social Sciences > Agricultural Economics
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 14 Nov 2016 10:33
Last Modified: 14 Nov 2016 10:33
URI: http://eprints.icrisat.ac.in/id/eprint/14569

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