ASSESSMENT OF RICE GENOTYPES RESPONSE TO DROUGHT STRESS AT THE EARLY REPRODUCTIVE STAGE USING STRESS TOLERANCE INDICES

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TABKHKAR N.; RABIEI B.; SAMIZADEH LAHIJI H.; HOSSEINI CHALESHTORI M.

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Journal: JOURNAL OF CROP PRODUCTION AND PROCESSING Year:2018 | Volume:7 | Issue:4 Page(s): 83-106

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Title

ASSESSMENT OF RICE GENOTYPES RESPONSE TO DROUGHT STRESS AT THE EARLY REPRODUCTIVE STAGE USING STRESS TOLERANCE INDICES

Author(s)

TABKHKAR N. | RABIEI B. | SAMIZADEH LAHIJI H. | HOSSEINI CHALESHTORI M. | Issue Writer Certificate

Keywords

ABIOTIC STRESSQ2

GRAIN YIELDQ1

RICEQ1

STRESS INDEXQ2

Abstract

Drought stress is one of the major ABIOTIC STRESSes that limits RICE productivity in the world. In this study 83 diverse RICE genotypes were evaluated under reproductive-stage drought stress and non-stress conditions in a completely randomized design with three replications. Eleven well known stress tolerance and susceptibility indices were calculated based on the GRAIN YIELD under stress and non-stress conditions. Also rank mean (RM) indices were calculated based on the ranks of genotypes for the former calculated indices. The highest seed yield under non-stress condition belonged to the genotypes Sangjo, Zenith, IR70445-146-3-3, Norin 22 and Ghasroldashti. Under stress condition, however, IR83750-131-1, IR74718-24-2-3, Sepidrood, TETEP and IR71739-24-3-5 genotypes showed the highest seed yield. STI, GMP, MRP and REI indices with positive and significant correlations with GRAIN YIELD in stress and non-stress conditions were found to be the most suitable indices for selection of drought tolerant RICE genotypes. According to these indices, IR83750-131-1, Sangjo, Sepidrood, Zenith and IR58 genotypes showed the highest ranks and had a higher tolerance to drought stress.Based on RM index, IR83750-131-1, IR74718-24-2-3, Sepidrod, TETEP and IR74720-13-1-2 obtained the highest ranks.Cluster analysis grouped the most drought tolerant genotypes in the second cluster.

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APA: Copy

TABKHKAR, N., RABIEI, B., SAMIZADEH LAHIJI, H., & HOSSEINI CHALESHTORI, M.. (2018). ASSESSMENT OF RICE GENOTYPES RESPONSE TO DROUGHT STRESS AT THE EARLY REPRODUCTIVE STAGE USING STRESS TOLERANCE INDICES. JOURNAL OF CROP PRODUCTION AND PROCESSING, 7(4 ), 83-106. SID. https://sid.ir/paper/255867/en

Vancouver: Copy

TABKHKAR N., RABIEI B., SAMIZADEH LAHIJI H., HOSSEINI CHALESHTORI M.. ASSESSMENT OF RICE GENOTYPES RESPONSE TO DROUGHT STRESS AT THE EARLY REPRODUCTIVE STAGE USING STRESS TOLERANCE INDICES. JOURNAL OF CROP PRODUCTION AND PROCESSING[Internet]. 2018;7(4 ):83-106. Available from: https://sid.ir/paper/255867/en

IEEE: Copy

N. TABKHKAR, B. RABIEI, H. SAMIZADEH LAHIJI, and M. HOSSEINI CHALESHTORI, “ASSESSMENT OF RICE GENOTYPES RESPONSE TO DROUGHT STRESS AT THE EARLY REPRODUCTIVE STAGE USING STRESS TOLERANCE INDICES,” JOURNAL OF CROP PRODUCTION AND PROCESSING, vol. 7, no. 4 , pp. 83–106, 2018, [Online]. Available: https://sid.ir/paper/255867/en

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