HEAT STRESS EFFECT ON YIELD AND GRAIN GROWTH PROCESS IN GENOTYPES MAIZE (ZEA MAYS L.) IN SHUSHTAR ENVIRONMENTAL CONDITIONS

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KHODARAHMPOUR Z.; CHOUKAN R.

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Paper Information

Journal: JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES) Year:2010 | Volume:2 | Issue:5 Page(s): 43-53

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Title

HEAT STRESS EFFECT ON YIELD AND GRAIN GROWTH PROCESS IN GENOTYPES MAIZE (ZEA MAYS L.) IN SHUSHTAR ENVIRONMENTAL CONDITIONS

Author(s)

KHODARAHMPOUR Z. | CHOUKAN R. | Issue Writer Certificate

Keywords

MAIZEQ2

HEAT STRESSQ2

YIELDQ2

PHENOLOGICAL TRAITSQ3

GRAIN GROWTH PROCESSQ3

Abstract

In order to study of HEAT STRESS effect on YIELD and GRAIN GROWTH PROCESS in MAIZE inbred lines and hybrids, fifteen MAIZE inbred lines in 2007 and twenty eight hybrids from combination of eight selected inbred lines in 2008 were evaluated in two planting dates, 6 July to coincide HEAT STRESS with pollination and grain filling period time and 27 July as normal planting to avoid high temperature during pollination and grain filling period using a randomized complete block design with three replications, in Shushtar city as tropical region in Khuzestan province. Grain YIELD, grain filling period, grain dry weight and plant growth period were deduced in inbred lines and hybrids under HEAT STRESS conditions. But, grain filling rate in inbred lines, and ASI in hybrids increased in HEAT STRESS. Inbred line K166B, under HEAT STRESS, produced the highest grain YIELD and the second under normal conditions and hybrid K18×K166B produced the highest grain YIELD under both conditions, while line K3651.2 produced the highest grain YIELD under normal conditions. High YIELDing inbred line, K3651.2 under normal conditions, showed serious reduction in YIELD under HEAT STRESS conditions. Proportionally, similar reductions occurred for grain dry matter content and grain filling period, as well as plant growth duration. While inbred line K166B and hybrid K18×K166B showed high grain YIELD under both conditions and grain filling period, grain filling rate, grain dry matter content and plant growth duration similar under both conditions.

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APA: Copy

KHODARAHMPOUR, Z., & CHOUKAN, R.. (2010). HEAT STRESS EFFECT ON YIELD AND GRAIN GROWTH PROCESS IN GENOTYPES MAIZE (ZEA MAYS L.) IN SHUSHTAR ENVIRONMENTAL CONDITIONS. JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES), 2(5), 43-53. SID. https://sid.ir/paper/201908/en

Vancouver: Copy

KHODARAHMPOUR Z., CHOUKAN R.. HEAT STRESS EFFECT ON YIELD AND GRAIN GROWTH PROCESS IN GENOTYPES MAIZE (ZEA MAYS L.) IN SHUSHTAR ENVIRONMENTAL CONDITIONS. JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES)[Internet]. 2010;2(5):43-53. Available from: https://sid.ir/paper/201908/en

IEEE: Copy

Z. KHODARAHMPOUR, and R. CHOUKAN, “HEAT STRESS EFFECT ON YIELD AND GRAIN GROWTH PROCESS IN GENOTYPES MAIZE (ZEA MAYS L.) IN SHUSHTAR ENVIRONMENTAL CONDITIONS,” JOURNAL OF PLANT PRODUCTION SCIENCE (JOURNAL OF AGRICULTURAL RESEARCHES), vol. 2, no. 5, pp. 43–53, 2010, [Online]. Available: https://sid.ir/paper/201908/en

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