Effect of irrigation levels on soil plant water relations of Kabuli chickpea (Cicer arietinum) genotypes

Kumar, S. and Pannu, R.K. and Dhaka, A.K. and et al, . (2013) Effect of irrigation levels on soil plant water relations of Kabuli chickpea (Cicer arietinum) genotypes. Annals of Biology, 29 (1). pp. 45-49.

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Five Kabuli chickpea genotypes, namely, HK 00-300, HK 99-214, HK 98-155, HK 00-290 and HK-1 were tested in three stress environments i. e. severe stress (no post-sowing irrigation), mild stress (one irrigation at 70 DAS) and non-stressed (two irrigations at 70 and 110 DAS) with four repeats in split plot design. The experiment was conducted in concrete micro plots filled with dunal sand at crop physiology field laboratory at CCS Haryana Agricultural University, Hisar Research Farm located at 29°10′N latitude, 75°46′E longitude and 215.2 m altitude. Increase in moisture stress decreased leaf water potential (ψL), turgor potential (ψP), RWC, plant water content, plant water retention, RWC and CTD. ψL, ψP and RWC were highest in HK 00-290, whereas water retention was highest in HK-1 and water content was highest in HK 00-300. The soil moisture content in the profile decreased consistently in unirrigated control and always remained below mildly stressed and non-stressed environments. The moisture content in non-stressed environment and mildly stressed environment increased with application of irrigation. The highest amount of water was used in terms of per cent moisture extraction from the surface layer i. e. 0-15 followed by 15-45 cm profile layer. The increase in moisture stress increased the moisture extraction from the deeper profile layer i. e. 105-135 cm. The highest water use from 105-135 cm soil layer was recorded in HK 98-155. The moisture stress at reproductive stage reduced the seed yield to the extent of 54.9%. Genotype HK 98-155 yielded highest followed by HK-1 due to better drought tolerance and these genotypes also extracted more water during reproductive phase along with higher WUE. Among the genotypes, HK 98-155 used maximum amount of water with highest water use efficiency.

Item Type: Article
Author Affiliation: Department of Agronomy, CCS Haryana Agricultural University, Hisar - 125 004, Haryana, India
Subjects: Plant Protection
Soil Science and Microbiology
Crop Improvement
Divisions: Chickpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 06 Jun 2013 10:19
Last Modified: 06 Jun 2013 10:19
URI: http://eprints.icrisat.ac.in/id/eprint/10686

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