alexa Physio-morphological Stability Under Stress (drought) Responses For Maize Inbred Lines
ISSN: 2157-7471

Journal of Plant Pathology & Microbiology
Open Access

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2nd International Conference on Plant Science & Physiology
June 26-27, 2017 Bangkok, Thailand

Ashraf M, Saleem S, M S Zahid, U Saleem and M Y Ashraf
National Agricultural Research Center, Pakistan
University of Sargodha, Pakistan
Nuclear Institute for Agriculture and Biology, Pakistan
Posters & Accepted Abstracts: J Plant Pathol Microbiol
DOI: 10.4172/2157-7471-C1-006
Abstract
Maize occupies the most important position among food grain crops and is grown under diverse agro-climatic conditions. Drought is the major abiotic stress which reduces the crop yield by disturbing the normal physiological activities of maize crop. Maize inbred lines 25 in numbers having diverse genetic back ground were used for assessment of stability against drought stress at seedling and maturity stages. Two separate experiments were conducted; one normal (without stress) & controlled (drought stress at seedling and maturity stages). Two inbred lines SS9 and SS11 showed less deviation in grain yield and considered stable. These two lines (SS9 and SS11) also performed better at seedling stage and in the Anthasis Silking Interval (ASI). Similarly, minimum reduction in other physiological parameters like chlorophyll a, chlorophyll b, leaf carotenoids and turgor potential was observed in these inbred lines. Maximum increase in proline content and reduction in osmotic potential was shown by PS4 and was also considered stable. The better stability and osmotic adjustment of these inbred lines suggested their use for development of drought tolerant hybrids which can improve grain yield under stress environment.
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