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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 89 - 103 (15page)
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초록· 키워드
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Six durum and twelve bread wheat genotypes were evaluated under favorable and drought-stressed field conditions, and screened with thirty simple sequence repeats (SSR) markers. The traits studied were stomata frequency (STF), relative water content (RWC), flag leaf area (FLA), flag leaf weight (FLW), flag leaf dry matter content (FLD), chlorophyll a content (Chl.a), chlorophyll b content (Chl.b), grain yield/plant (GYP) and 1000-kerenl weight (TKW). Highly significant differences were observed among wheat genotypes for all the traits, indicating considerable genetic variation. Moderate to high broad-sense heritability estimates were observed for the studied traits. Under drought stress, GYP was positively correlated with RWC, FLA, FLW and TKW, whereas negatively correlated with STF. G3 (Svevo) and G6 (WK-12-1) were the most drought-tolerant durum wheat, whereas G11 (L.S-15) and G16 (SIDS-1) were the most drought-tolerant bread wheat genotypes. SSR markers analysis indicated considerable genetic variation between and within durum and bread wheat genotypes. The percentage of polymorphism ranged from 14.3% (Xgwm174-5D) to 100% (Xgwm294-2A and Xgwm573-7B), with an average of 61.4%. The polymorphism information content (PIC) ranged from 0.20 (Xwmc596-7A) to 0.48 (Xgwm294-2A), with an average of 0.33.The highest polymorphism (77.1%) was observed in the B genome followed by A (57.8%) and D (50.0%) genomes. Cluster analysis based on phenotypic data distinguished the most drought-tolerant genotypes (G6 and G11) from the remaining genotypes. Cluster analysis based on SSR markers distinguished durum from bread wheat genotypes. The study indicated that phenotypic data and SSR markers were effective in assessing the genetic diversity in the studied genotypes.
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참고문헌 (67)
참고문헌 신청
Ahmad Z / 2018 / Physiological responses of wheat to drought stress and its mitigation approaches / Acta Physiol. Plant 40:80
Ahsan M / 2008 / Contribution of various leaf morpho-physiological parameterstowards grain yield in maize / Int. J. Agr. Biol 10:546~550
Ali Y / 2019 / An assessment of the genetic diversity in selected wheat lines using molecular markers and PCR-based cluster analysis / Appl. Ecol. Env. Res 17:931~950
Almeselmani M / 2011 / Effect of drought on different physiological characters and yield component in different varieties of Syrian durum wheat / J. Agric. Sci 3:127~133
Arjenaki FG / 2012 / Evaluation of drought stress on relative water content, chlorophyll content and mineral elements of wheat (Triticum aestivum L.) varieties / Int. J. Agric. Crop Sci 4:726~729
Ahsan M / 2008 / Contribution of various leaf morpho-physiological parameterstowards grain yield in maize / Int. J. Agr. Biol 10:546~550
Ali Y / 2019 / An assessment of the genetic diversity in selected wheat lines using molecular markers and PCR-based cluster analysis / Appl. Ecol. Env. Res 17:931~950
Almeselmani M / 2011 / Effect of drought on different physiological characters and yield component in different varieties of Syrian durum wheat / J. Agric. Sci 3:127~133
Arjenaki FG / 2012 / Evaluation of drought stress on relative water content, chlorophyll content and mineral elements of wheat (Triticum aestivum L.) varieties / Int. J. Agric. Crop Sci 4:726~729
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