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Subject: Agronomy × Author: Halder, Rahul × End date: 2021 × Start date: 2021 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Response of chickpea (Cicer arietinum L.) to seed treatment and foliar application of vrikshayurveda based herbal kunapajala under different dose of nutrients
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-11) Halder, Rahul; Pandey, Sunita T.
    In the present investigation, the laboratory experiment was conducted at Seed Physiology Laboratory, Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar to study the effect of seed invigoration treatment with vrikshayurveda based herbal kunapajala on seed germination and seedling vigour of chickpea. The laboratory trail consisted of seed invigoration with different concentration of vrikshayurveda based herbal kunapajala (10%, 25% and 50%) in the ratio of 1:2 (seed: priming media) for 8 hours along with hydropriming and control and arranged in completely randomized block design in six replications. The field experiment was also performed during rabi season, 2020-21 at N.E. Borlaug Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar to explore the possibility of NPK interaction with herbal kunapajala and its effect on yield of chickpea of chickpea. The field experiment consisting of three different kunapajala treatments (10% kunapajala priming + 10% kunapajala foliar application, 25% kunapajala priming+10% kunapajala foliar application and 50% kunapajala priming +10% kunapajala foliar application) and four nutrient doses (100% RDN, 75% RDN, 50% RDN and no nutrient) along with two control treatments (no priming + 100% RDN and hydropriming + 100% RDN) was laid out in factorial randomized block design with three replications where foliar applications of herbal kunapajala was done at 30, 60, 80, 90, 100, 110 and 120 DAS in all treatments except two control treatments. Significantly higher germination percentage, speed of germination, water imbibition rate at 8 and 12 hours of priming and α- amylase activity at 8 and 16 hours of priming were observed from 10% kunapajala primed seeds which was at par with hydropriming. Priming with 10% kunapajala also recorded the highest shoot length, root length, seedling length, seedling dry weight, seedling vigour index- I, seedling vigour index- II and seed reserve mobilization efficiency at both 5th and 8th day after incubation among all seed invigoration treatments. Field emergence, plant stand, plant height at 90, 120 DAS and harvest, dry matter accumulation from 60 DAS and onwards, number of effective nodule and nodule dry weight were influenced significantly by 10% kunapajala priming +10% kunapajala foliar application over 50% kunapajala priming+10% kunapajala foliar application, but remained at par with 25% kunapajala priming+10% kunapajala foliar application. Chickpea treated with 10% kunapajala+10% kunapajala foliar application produced 52.3%, 4.76%, 36.5%, 24.5% and 37.0% higher pods/plant, 100 grain weight, grain yield, biological yield and protein yield, respectively over 50% kunapajala priming+10% kunapajala foliar application, but it was statistically similar with 25% kunapajala priming+10% kunapajala foliar application. Economics of cultivation viz. gross returns, net returns and B:C ratio were found significantly higher from priming with 10% kunapajala +10% kunapajala foliar application which was at par with 25% kunapajala priming +10% kunapajala foliar application for gross return and net return. Application of 100% RDN being at par with 75% RDN significantly affected plant height at 90, 120 DAS and harvest, dry matter at 60 and 90 DAS, number of effective nodule and nodule dry weight than lower doses. Average increment in pods/plant, 100 grain weight, grain yield, biological yield and protein yield from application of 100% RDN was 32.0%, 10.7%, 46.23%, 29.8% and 46.8%, respectively over no nutrient application, but remained at par with 75% RDN with respect to 100 grain weight, biological yield and protein yield. Application of 100% RDN also fetched significantly higher gross returns, net returns and B:C ratio than lower nutrient doses.