EVALUATION OF SALT TOLERANCE IN IRANIAN LANDRACE AND IMPROVED RICE CULTIVARS

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SABOURI HOSSEIN; REZAEI ABD ALMAJID; MOUMENI ALI

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Journal: Journal of Water and Soil Science Year:2008 | Volume:12 | Issue:45 (A) Page(s): 47-63

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Title

EVALUATION OF SALT TOLERANCE IN IRANIAN LANDRACE AND IMPROVED RICE CULTIVARS

Author(s)

SABOURI HOSSEIN | REZAEI ABD ALMAJID | MOUMENI ALI | Issue Writer Certificate

Keywords

CLUSTER ANALYSISQ3

GENETIC VARIABILITYQ3

RICEQ3

TOLERANCE INDICESQ3

Abstract

In order to study the genetic diversity of 75 Iranian RICE genotypes (45 Iranian land race, 25 improved cultivars, and 5 exotic cultivars) with respect to their salinity tolerance at seedling stage and to determine TOLERANCE INDICES, based on biomass, genotypic code and Na+/K+ ratio a factorial experiment in randomized complete block design with three replications was conducted under control and salt stress (1.2, 4 and 8 dSm-1) conditions at Rasht RICE Research Institute.Root and shoot length, root and shoot dry weight, Na+ and K+ concentrations, and genetic score were studied.Significant differences were detected among genotypes for all traits. Shoot length and K+ concentration had the highest and lowest heritability estimates, respectively. Genetic score under salinity stress showed that Tarom-mahalli, Gharib, Shahpasand Mazandaran and Ahlami-Tarom with more biological yield root and shoot lenghes, and low Na+/K+ ratio were tolerant. Khazar, Speedroud, IR28 and IR29 were the most sensitive cultivars. Tarommahalli, Ahlamitarom, Rashti and Chparsar had low tolerance index, mean productivity, stress sensitive index, geometric mean index, stress tolerance index and harmonic mean for genetic score, whereas Khazar and Speedroud had high values for theses indices. CLUSTER ANALYSIS, based on seedling traits at 4 and 8 dS.m-1 divided the genotypes to three groups. Tolerante group had low genetic score and Na+/K+ ratio, but high root and shoot dry weight, biomass, root and shoot length.

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APA: Copy

SABOURI, HOSSEIN, REZAEI, ABD ALMAJID, & MOUMENI, ALI. (2008). EVALUATION OF SALT TOLERANCE IN IRANIAN LANDRACE AND IMPROVED RICE CULTIVARS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 12(45 (A)), 47-63. SID. https://sid.ir/paper/14794/en

Vancouver: Copy

SABOURI HOSSEIN, REZAEI ABD ALMAJID, MOUMENI ALI. EVALUATION OF SALT TOLERANCE IN IRANIAN LANDRACE AND IMPROVED RICE CULTIVARS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2008;12(45 (A)):47-63. Available from: https://sid.ir/paper/14794/en

IEEE: Copy

HOSSEIN SABOURI, ABD ALMAJID REZAEI, and ALI MOUMENI, “EVALUATION OF SALT TOLERANCE IN IRANIAN LANDRACE AND IMPROVED RICE CULTIVARS,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 12, no. 45 (A), pp. 47–63, 2008, [Online]. Available: https://sid.ir/paper/14794/en

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