Optimization of bio-regulators dose based on photosynthetic and yield performance of chickpea (Cicer arietinum L.) genotypes

Vineeth, T.V. and Kumar, P. and Yadav, S. and Pal, M. (2012) Optimization of bio-regulators dose based on photosynthetic and yield performance of chickpea (Cicer arietinum L.) genotypes. Indian Journal of Plant Physiology, 20 (2). pp. 177-181.

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Abstract

A pot experiment was conducted using two contrasting chickpea varieties, viz., Pusa 362 (Desi type) and Pusa 1108 (Kabuli type) with the objective of optimizing dose of bio-regulators namely thiourea (TU), benzyladenine (BA) and thidiazuron (TDZ). Varying doses of foliar application of TU (0, 500, 1000, 1500 ppm), BA (0, 20, 40, 60 ppm), TDZ (0, 10, 15, 20 ppm) and salicylic acid (0, 50, 100, 150 ppm) were applied before flowering stage. Rates of photosynthesis were recorded at flowering and podding stages and seed yield was obtained at harvest. The results revealed that photosynthetic rate in both varieties increased with increasing doses of bio-regulators at both flowering and podding stages and grain yield also exhibited similar trend. Highest photosynthetic rates and grain yield were recorded with the foliar application of TU, BA, TDZ and SA @ 1000, 40, 10 and 100 ppm, respectively. After curve fitting, optimum dose for TU, BA, TDZ and SA foliar application were estimated to be 878.33, 52.75, 11.78 and 90.63 ppm, respectively.

Item Type: Article
Uncontrolled Keywords: Benzyladenine, Chickpea, Photosynthesis, Salicylic acid, Thidiazuron, Thiourea, Yield
Author Affiliation: Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi 110 012, India
Subjects: Crop Improvement
Divisions: Chickpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 04 Dec 2015 08:51
Last Modified: 04 Dec 2015 08:51
Official URL: http://dx.doi.org/10.1007/s40502-015-0150-y
URI: http://eprints.icrisat.ac.in/id/eprint/14079

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