Vol. 6, Issue 6 (2018)
Response of physiological traits of maize to moisture stress induced at different developmental stages
Author(s): SG Khandagale, RB Dubey, Vijay Sharma and Rumana Khan
Abstract: Screening of plants germplasm may serve as important source of favorable alleles for enhancing the performance of new maize verities and hybrids under moisture stress conditions. For this, field study was carried by crossing of 15 inbreed lines with 3 testers in L x T and resultant 45 hybrids, inbreads with four checks are evaluated in 2015-16 Rabbi to avoid rainfall in order to determine the effect of irrigation and moisture stress imposed at different stages on physiological and yield contributing characters of corn. Tasseling and grain filling stages are targeted for giving moisture stress for 20 days at starting of both stages. The effect of moisture stress imposed at different developmental stages on anthesis-silking interval, grain yield per plant, chlorophyll content, relative water content, proline content and leaf area were evaluated. On the basis of evaluated trial, the study showed that all vegetative and yield parameters were significantly affected by water shortage in soil profile due to omitted irrigation during sensitive tasseling and grain filling stage. Water stress during tasseling stage increases the ASI and proline content while it lowers down the relative water content, chlorophyll content, grain yield per plant. Even 20 days of halting irrigation at anthesis and grain filling stage causes up to 42 and 14 per cent of grain yield loss respectively. Much greater loss of 70-80 per cent of grain yield could be expected as result of prolonged moisture stress during anthesis and grain filling stage.
Pages: 2757-2761 | 311 Views 59 Downloads
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How to cite this article:
SG Khandagale, RB Dubey, Vijay Sharma, Rumana Khan. Response of physiological traits of maize to moisture stress induced at different developmental stages. Int J Chem Stud 2018;6(6):2757-2761.
