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Effect of foliar application of seaweed extract and plant growth regulators on growth, productivity and quality of soybean [Glycine max. (L.) merrill]

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Title Effect of foliar application of seaweed extract and plant growth regulators on growth, productivity and quality of soybean [Glycine max. (L.) merrill]
 
Creator Mahajan, Gopal Madhukar
 
Contributor Dwivedi, S.K.
 
Subject PLANT PHYSIOLOGY
 
Description ABSTRACT
The present research investigation entitled "Effect of foliar application of seaweed extract and plant growth regulators on growth, productivity and quality of soybean [ Glycine max (L.) Merill ]” was conducted with seventh treatments of seaweed extract (SWE) and plant growth regulators, Viz., TIBA, B-9, NAA, with various concentration in a RBD design with three replication, At the Research Farm Dusty Acre, Department of Plant Breeding and Genetics. JNKVV, Jabalpur during kharif season 2013-14.
A progressive pattern of increase in LAI was noted with the treatment of crop age and maximum was noted with 70-80 DAS. Application of Seaweed extract (SWE) granules @12.5 kg/ha + seaweed foliar spray @120 ml/ha (25, 40 and 60 DAS) Maximum LAI was recorded with this treatment. The LAD increase up to 70-80 DAS and there after it declined sharply. Maximum LAD was maintained with SWE granules + foliar spray (25, 40 and 60 DAS) and with other treatment. Similarly, maximum CGR, RGR and SLA was noted at 70-80 DAS with a differential pattern among various treatment of foliar spray and granule application. The productivity of a crop is dependent on its inherent capacity of photosynthesis, photosynthetic assimilatory and availability of photo synthetically active radiation within the canopy. The data regarding photosynthetic rate revealed that the application of TIBA and SWE granules + foliar spray (25, 40 and 60 DAS) of treatment are highest and this treatment also increases the grain yield significantly enhanced PAR absorption, stomatal conductance, transpiration rate and chlorophyll content under control all these parameters were significantly longer.
The application of seaweed extract (SWE) granules +foliar spray (25, 40 and 60 DAS). There was increase chlorophyll content and photosynthetic parameters were positively correlated with seed yield, while antioxidant capacity was negatively correlated with photosynthesis and seed yield. Since seaweed extract play beneficial role, because it contain cytokinins, auxin and auxin like substances which enhanced stomatal conductance, regulation of bio-synthetic enzymes, increased photosynthetic efficiency and carbon assimilation. There was positively increase canopy architecture, biomass production, structural components of yields and seed yield of soybean.
The betterment in structural components of yield resulted in maximum realization of productivity potential in soybean with foliar application of seaweed extract (SWE), The yield attributing character of soybean viz., No. of pods/plant, pod weight, seed yield/plant and(q/ha), biological yield/plant and (q/ha), harvest index(%),and also seed protein%, nitrogen%. The 24.97% increase in seed yield over control. Significantly improved with treatment Seaweed extract (SWE) granules @12.5 kg/ha + seaweed foliar spray @120 ml/ha (25, 40 and 60 DAS) DAS. Remaining other components significantly maximum plant height, total no. of nodes/ effective nodes and pod length registered under foliar spray of NAA. Also the TIBA significantly reduced plant height, increase no. of branches/plant and seed index%.
 
Date 2016-07-30T11:48:44Z
2016-07-30T11:48:44Z
2014
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/70245
 
Language en
 
Format application/pdf
 
Publisher JNKVV