EVALUATION OF DROUGHT TOLERANCE IN GRAIN MAIZE HYBRIDS USING DROUGHT TOLERANCE INDICES

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CHOUKAN R.; HEYDARI A.R.; MOHAMMADI ABD ELAH; HADADI M.H.

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Journal: Seed and Plant Year:2008 | Volume:24 | Issue:3 Page(s): 543-562

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Title

EVALUATION OF DROUGHT TOLERANCE IN GRAIN MAIZE HYBRIDS USING DROUGHT TOLERANCE INDICES

Author(s)

CHOUKAN R. | HEYDARI A.R. | MOHAMMADI ABD ELAH | HADADI M.H. | Issue Writer Certificate

Keywords

MAIZEQ2

DROUGHT STRESSQ2

TOLERANCE INDICESQ2

HYBRIDEQ2

Abstract

In order to study the reaction of fifteen MAIZE hybrids to different levels of DROUGHT STRESS, and evaluate drought TOLERANCE INDICES, an experiment was conducted in split plot arrangement using randomized complete block design with four replications in Gharakhil (Ghaemshahr) Agricultural Station, in 2006. The main plots consisted of DROUGHT STRESS levels and sub-plots included MAIZE hybrids. Six drought TOLERANCE INDICES were calculated for grain yield. Under normal, mild and severe stress conditions, hybrid OSGT14 produced 9.445, 9.270 and 8.352 tha-1, respectively, while under most severe stress, hybred SPGT12 produced the highest grain yield (7.455 tha-1). Based on the highest correlation observed between grain yield and different (indices, MP, GMP, Harm and STI, were suitable indices. Biplot analysis determined hybrids OSGT14, KSC710GT and KSC-mog 84-062, in group A, as tolerant hybrids and suitable for normal and stress conditions, and hybrids BGT10, KSC 708 GT, BGT15 and KSC712GT as susceptible hybrids. Cluster analysis based on different indices, divided hybrids under mild and severe stress conditions, into five, and under most severe stress into six groups. Indices MP, GMP, Harm and STI, identified hybrids OSGT14 and KSC710GT as tolerant, and BGT15 and KSC708GT as susceptible hybrids to DROUGHT STRESS, while, indices TOL and SSI showed KSC 720 and KSC700 as tolerant and KSC712GT and BGTI0 as susceptible hybrids to DROUGHT STRESS.

Cites

THE RESPONSE OF GRAIN CORN GENOTYPES TO DROUGHT AND DETERMINATION OF DROUGHT TOLERANCE INDICES

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APA: Copy

CHOUKAN, R., HEYDARI, A.R., MOHAMMADI, ABD ELAH, & HADADI, M.H.. (2008). EVALUATION OF DROUGHT TOLERANCE IN GRAIN MAIZE HYBRIDS USING DROUGHT TOLERANCE INDICES. SEED AND PLANT, 24(3), 543-562. SID. https://sid.ir/paper/20424/en

Vancouver: Copy

CHOUKAN R., HEYDARI A.R., MOHAMMADI ABD ELAH, HADADI M.H.. EVALUATION OF DROUGHT TOLERANCE IN GRAIN MAIZE HYBRIDS USING DROUGHT TOLERANCE INDICES. SEED AND PLANT[Internet]. 2008;24(3):543-562. Available from: https://sid.ir/paper/20424/en

IEEE: Copy

R. CHOUKAN, A.R. HEYDARI, ABD ELAH MOHAMMADI, and M.H. HADADI, “EVALUATION OF DROUGHT TOLERANCE IN GRAIN MAIZE HYBRIDS USING DROUGHT TOLERANCE INDICES,” SEED AND PLANT, vol. 24, no. 3, pp. 543–562, 2008, [Online]. Available: https://sid.ir/paper/20424/en

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