EVALUATION OF DROUGHT STRESS ON AGRO - MORPHOLOGICAL CHARACTERISTICS IN SOME WHEAT CULTIVARS

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MOHAMMADI A.; MAJIDI HERAVAN E.; BIHAMTA M.R.; HEYDARI SHARIFABAD H.

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Journal: Year:2007 | Volume:19 | Issue:4 (73 IN AGRONOMY AND HORTICULTURE) Page(s): 184-192

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Title

EVALUATION OF DROUGHT STRESS ON AGRO - MORPHOLOGICAL CHARACTERISTICS IN SOME WHEAT CULTIVARS

Author(s)

MOHAMMADI A. | MAJIDI HERAVAN E. | BIHAMTA M.R. | HEYDARI SHARIFABAD H. | Issue Writer Certificate

Keywords

WHEATQ3

AGRO- MORPHOLOGICAL CHARACTERISTICSQ3

DROUGHT TOLERANCEQ2

DROUGHT STRESSQ2

Abstract

For assessment of DROUGHT STRESS effects on AGRO- MORPHOLOGICAL CHARACTERISTICS of 16 WHEAT cultivars and for introducing of drought tolerant and susceptible ones, two trials were established using randomized complete block design (RCBD) with two replications. In stress trial for germination of seeds, the farm was irrigated just one time, but in the check trial, irrigations the farm was done with the normal regime. Within and end of growth season we measured some agronomic and morphological characters such as yield and it’s component, height, day to flowering, peduncle length, and etc. Responses of cultivars under stress and non-stress conditions were different, for example DROUGHT STRESS reduced yield (50.37%), stalk Yield (49.45%) and biological yield (49.84%). In spite of this general yield reducing, we found some cultivars, such as Azar2, Sabalan, Kavir and Chamran that have relatively high yield. With using of correlation analysis, we studied relevance of all traits in stress and non-stress conditions. Because of supplying materials for remobilization and increasing photosynthesis surface, we conclude that some characters such as more height and length of peduncle are useful in plant DROUGHT TOLERANCE. We used several selection indices (SIs), such as, Stress Tolerance Index (STI), Harmonic Mean (Harm), Geometric Mean Productivity (GMP), to studying DROUGHT TOLERANCE of cultivars. We found that all of these indices were the best, because there are the greatest correlations between this SIs and grain yield under stress and non-stress conditions. Among studied cultivars, Azar2 and 87-Zhong291 were the tolerant and susceptible cultivars, respectively. We can use these cultivars for mating and formation of segregated population. With cluster analysis of genotypes using UPGMA procedure based on Euclidean distance, 16 studied genotypes were grouped in 11 distance clusters.

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APA: Copy

MOHAMMADI, A., MAJIDI HERAVAN, E., BIHAMTA, M.R., & HEYDARI SHARIFABAD, H.. (2007). EVALUATION OF DROUGHT STRESS ON AGRO - MORPHOLOGICAL CHARACTERISTICS IN SOME WHEAT CULTIVARS. PAJOUHESH-VA-SAZANDEGI, 19(4 (73 IN AGRONOMY AND HORTICULTURE)), 184-192. SID. https://sid.ir/paper/19954/en

Vancouver: Copy

MOHAMMADI A., MAJIDI HERAVAN E., BIHAMTA M.R., HEYDARI SHARIFABAD H.. EVALUATION OF DROUGHT STRESS ON AGRO - MORPHOLOGICAL CHARACTERISTICS IN SOME WHEAT CULTIVARS. PAJOUHESH-VA-SAZANDEGI[Internet]. 2007;19(4 (73 IN AGRONOMY AND HORTICULTURE)):184-192. Available from: https://sid.ir/paper/19954/en

IEEE: Copy

A. MOHAMMADI, E. MAJIDI HERAVAN, M.R. BIHAMTA, and H. HEYDARI SHARIFABAD, “EVALUATION OF DROUGHT STRESS ON AGRO - MORPHOLOGICAL CHARACTERISTICS IN SOME WHEAT CULTIVARS,” PAJOUHESH-VA-SAZANDEGI, vol. 19, no. 4 (73 IN AGRONOMY AND HORTICULTURE), pp. 184–192, 2007, [Online]. Available: https://sid.ir/paper/19954/en

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