Leaf surface wetness in sorghum and resistance to shoot fly, Atherigona soccata: role of soil and plant water potentials

    Soman, P and Nwanze, K F and Laryea, K B and Butler, D R and Reddy, Y V R (1994) Leaf surface wetness in sorghum and resistance to shoot fly, Atherigona soccata: role of soil and plant water potentials. Annals of Applied Biology, 124 (1). pp. 97-108. ISSN 1744-7348

    [img] PDF - Published Version
    Restricted to ICRISAT users only
    Download (1MB) | Request a copy

    Abstract

    In experiments with potted plants, the relationships between soil matric potential, plant water potential and production of water droplets (leaf surface wetness) on the folded central whorl leaf of seedlings of sorghum genotypes that are either resistant or susceptible to shoot fly (Atherigona soccata) damage were investigated. Differences in soil matric potentials in the pots affected the plant water status, which in turn had profound effects on the production of water droplets on the central whorl leaf of the sorghum genotype susceptible to shoot fly. There was no consistent variation in the relationship between plant water potential and soil matric potential of resistant and susceptible sorghum genotypes. However, there was very little or practically no water droplets on the central whorl leaf of the resistant genotypes, indicating that the production of water droplets is not solely the result of internal water status of the plant. It is suggested that leaf surface wetness is genetically controlled and that an understanding of the mechanism by which water is transferred to the leaf surface will enhance breeding for resistance to shoot fly.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Leaf surface wetness;plant water potential;soil matric potential;Atherigona spp.;Muscidae, sho
    Subjects: Mandate crops > Sorghum
    Depositing User: Mr Charan Sai Ch
    Date Deposited: 23 Oct 2011 11:38
    Last Modified: 23 Oct 2011 11:38
    URI: http://oar.icrisat.org/id/eprint/3141
    Official URL: http://dx.doi.org/10.1111/j.1744-7348.1994.tb04119...
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: We wish to thank Mr R Sudi for assisting with the graphs and Mr R Jayachandran for his critical review of the manuscript during its final stages of preparation. This paper was submitted as Journal Article No. 1441 by the lnternational Crops Research Institute for the Semi-Arid Tropics (ICRISAT).
    Links:
    View Statistics

    Actions (login required)

    View Item View Item
    OAR@ICRISAT is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.