Response of selected sorghum lines to soil salinity-stress under field conditions

Ramesh, S and Reddy, B V S and Reddy, P S and Hebbar, M and Ibrahim, M (2005) Response of selected sorghum lines to soil salinity-stress under field conditions. International Sorghum and Millets Newsletter, 46. pp. 14-18.

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Forty-two sorghum lines, selected from 100 breeding lines evaluated for biomass production under salinity stress (electrical conductivity of ECe of 23.4 dS/m) in a pot experiment, were evaluated for yield and yield components under saline (ECe of 8.0 dS/m) conditions in Gangavathi, Karnataka, and under normal (non-saline) conditions in Patancheru, Andhra Pradesh, India, during the rainy season of 2004. The entries consisted of 24 hybrid parents (15 maintainer lines and 9 restorer lines), 16 cultivars, one hybrid and one salinity-sensitive control. Significant genetic variation for number of days to 50% flowering (70-92), plant height (1.0-2.7 m) and grain yield (0.50-3.9 t/ha) under saline conditions was observed. Delayed flowering, reduced plant height and grain yield, and poor agronomic performance and stay-green scores were some of the responses of the cultivars to soil salinity. The highly significant variation in phenotypic and genetic coefficients of variation indicated the significanteffects of the environment on grain yield and other traits under salinity. Under saline and normal conditions, ICSV 112 (3.4 and 6.5 t/ha), S 35 (3.1 and 5.6 t/ha), JJ 1041 (2.9 and 6.9 t/ha) and PSH 1 (3.4 and 5.9 t/ha) produced high grain yields. The maintainer lines and restorer lines were comparable in terms of grain yield; the cultivars were superior to hybrid parents with regard to this trait.

Item Type: Article
Subjects: Mandate crops > Sorghum
Depositing User: Library ICRISAT
Date Deposited: 10 Sep 2011 17:32
Last Modified: 10 Sep 2011 17:32
Official URL:
Funders: Organization of Petroleum Exporting Countries
Acknowledgement: We gratefully thank grants support by the Organization of Petroleum Exporting Countries (OPEC) fund for International Development to conduct this research. We also thank Ms Kanchi Rupa, Scientific Officer, ICRISAT, Patancheru, for statistical analysis of the data.
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