A pot technique to screen pigeonpea cultivars for resistance to waterlogging

Chauhan, Y S and Silim, S N and Kumar Rao, J V D K and Johansen, C (1997) A pot technique to screen pigeonpea cultivars for resistance to waterlogging. Journal Of Agronomy And Crop Science, 178 (3). pp. 179-183. ISSN 0931-2250

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To develop a preliminary screening procedure for waterlogging resistance, a waterlogging resistant ICP 8379 and a waterlogging susceptible cultivar ICP 7035 were grown i n pots using different growth media and subjected to 6 days of waterlogging. Waterlogging caused a significant reduction in root dry mass of both cultivars which was greater in ICP 7035 than tn ICP 8379, The reduction i n shoot dry mass was comparatively small. The most conspicuous differences between the two cultivars occurred in terms of plant survival. In different soil treatments, ICP S379 showed 0–38 % mortality and ICP 7035 showed 63–100% mortality. The variation in mortality occurred in response to differences in growth medium. Using the growth medium that gave maximum differences, eight additional cultivars were compared along with ICP 7035 and JCP 8379. Significant differences m plant mortality among different cultivars were observed, A number of cultivars showed similar low mortality as ICP 8379, Therefore, there appears to be a potential t o use this method for preliminary screening of a large number of pigeonpea cultivars for waterlogging resistance

Item Type: Article
Uncontrolled Keywords: Cajanus cajan L, Millsp., waterlogging resistance
Subjects: Mandate crops > Pigeonpea
Depositing User: Ms K Syamalamba
Date Deposited: 13 Oct 2011 09:19
Last Modified: 13 Oct 2011 09:19
URI: http://oar.icrisat.org/id/eprint/2427
Official URL: http://onlinelibrary.wiley.com/doi/10.1111/jac.199...
Acknowledgement: We thank the Agronomy Division staff for their assistance in conducting the experiments. Thanks are also due to Genetic Resources Division of ICRISAT for supplying seeds of ICP 14199, ICP 8379, ICP 8743, ICP 13562, ICP 14114 and ICP 8338
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