Effect of Boron and Plant Growth Regulators on Growth and Yield of Zaid Cowpea (Vigna unguiculata L.)
International Journal of Environment and Climate Change · pp. 185–191 · Published 27 Mar 2023
10.9734/ijecc/2023/v13i51759Abstract
The experiment was conducted at crop research farm in the department of agronomy during summer season in the department of agronomy during summer season of 2022 on cowpea crop. The treatments consisted of 3 levels of Boron (0.75,1,1.25 kg/ha) and Plant Growth Regulators (GA3 30 ppm, NAA 35 ppm, ABA 40 ppm ) as a foliar spray. The experiment was laid out in a Randomized block design with 9 treatments and replicated “thrice”.0.75 kg/ha as soil application combination with 30 ppm gibberellic acid as foliar spray recorded maximum plant height (69.48cm), highest plant dry weight (22.22gm), crop growth rate (3.0g/m2/day), number of nodules/plant (24.37), test weight (85.6g), number of pods/plant (15.45), number of seeds/pod (13.57), seed yield (2.68t/ha), stover yield(6.09t/ha), harvest index (30.56%). However, relative growth rate was not influenced by the application of boron and plant growth regulators and it recorded maximum in treatment 1 (Boron 0.75 kg/ha +GA3 30 ppm) (0.1005 g/g/day). 0.75 kg/ha Boron + 30 ppm gibberellic acid as foliar spray recorded highest gross return (161,040.00 ₹/ha), net return (113,394.00 ₹/ha), and benefit: cost ratio (2.38).
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