International Journal of Ecology and Environmental Sciences

International Journal of Ecology and Environmental Sciences


International Journal of Ecology and Environmental Sciences
International Journal of Ecology and Environmental Sciences
2020, Vol. 2, Issue 3
Climate resilient heat tolerant maize (Zea mays L.) hybrids yield potentialunder well-watered conditions in subtropics

MR Umesh, Prakash H Kuchnur, Vivekananda Reddy, N Manjunatha

A field experiment was conducted to evaluate newly developed heat tolerant maize hybrids canopy development and yield potential during rainy season relatively lower temperature. Four new hybrids tested in 60 and 45 cm row spacings and recommended and 25% graded fertilizers compared with local hybrids and existing recommendations. Results indicated that row spacing at 60 cm was found optimum to enhance growth and to achieve higher maize grain yield. Increased fertilizer rate at 25% higher than present recommendation was significant impact on grain yield of these hybrids. Among tested hybrids, RCRMH-2 was out yielded (19.4%) over local popular maize hybrid 900 M Gold. Light interception, leaf area index, aboveground biomass and yield attributes of maize hybrids was significantly influenced by row spacing and fertilizers rate.It indicated that heat tolerant maize hybrids are well performed during Kharif under well-watered condition.
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How to cite this article:
MR Umesh, Prakash H Kuchnur, Vivekananda Reddy, N Manjunatha. Climate resilient heat tolerant maize (Zea mays L.) hybrids yield potentialunder well-watered conditions in subtropics. International Journal of Ecology and Environmental Sciences, Volume 2, Issue 3, 2020, Pages 230-233
International Journal of Ecology and Environmental Sciences International Journal of Ecology and Environmental Sciences