Unravelling Effects of Temperature and Soil Moisture Stress Response on Development of Dry Root Rot [Rhizoctonia bataticola (Taub.)] Butler in Chickpea

    Sharma, M and Pande, S (2013) Unravelling Effects of Temperature and Soil Moisture Stress Response on Development of Dry Root Rot [Rhizoctonia bataticola (Taub.)] Butler in Chickpea. American Journal of Plant Sciences, 4 (3). pp. 584-589. ISSN 2158-2750

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    Abstract

    Erratic rainfalls and rise in temperature have become more frequent under the changing scenario of climate particularly in semiarid tropics. As a consequence of it, a drastic shift of chickpea diseases have been recorded throughout the major chickpea growing regions in India and elsewhere. Dry root rot (DRR) caused by Rhizoctonia bataticola (Taub.) Butler [Pycnidial stage: Macrophomina phaseolina (Tassi) Goid] was found as a potentially emerging constraint to chickpea production than wilt (Fusarium oxysporum f. sp. ciceris). Increasing incidence of DRR indicate strong influence of climate change variables such as temperature and moisture on the development of disease. The present study therefore was conducted to quantify the role of temperature and soil moisture associated with infection, colonization and development of DRR under controlled environment. The DRR incidence was significantly affected by high temperature and soil moisture deficit. Out of five temperature regimes (15?C, 20?C, 25?C, 30?C and 35?C) and four moisture levels (40%, 60%, 80% and 100%), a combination of high temperature (35?C) and soil moisture content (60%) predisposes chickpea to DRR. The study clearly demonstrates that high temperature coupled with soil moisture deficit is the climate change variables predisposing chickpea to R. bataticola infection, colonization and development.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Chickpea; Climate Change; Drought; Dry Root Rot; Soil Moisture; Temperature
    Subjects: Mandate crops > Chickpea
    Others > Plant Pathology
    Others > Agriculture-Farming, Production, Technology, Economics
    Depositing User: Mr Sanat Kumar Behera
    Date Deposited: 06 Apr 2013 05:05
    Last Modified: 06 Apr 2013 09:32
    URI: http://oar.icrisat.org/id/eprint/6719
    Official URL: http://dx.doi.org/10.4236/ajps.2013.43076
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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