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| 1 | Screening of Rice Cultivars for Morpho-Physiological Responses to Early-Season Soil Moisture Stress显示文摘The majority of rice(Oryza sativa L.) produced in the southern USA is drill-seeded and grown under upland-like conditions because permanent flooding is established after the four-leaf stage. Therefore, rice during the seedling growth stage will be subjected to variable soil moisture content. A greenhouse experiment was conducted to evaluate the performance of 15 rice cultivars commonly grown in Mississippi of USA under early-season soil moisture stress. Twenty morpho-physiological parameters of rice seedlings subjected to three different levels(100%, 66% and 33% field capacity) of soil moisture, from 10 to 30 d after sowing, were measured. Significant moisture stress × treatment interaction(P < 0.001) was observed for most of the parameters. Further, the total drought response index(TDRI) was developed to score the cultivars for drought tolerance with the variation from 26.88 to 36.21. Accordingly, the cultivars were classified into different groups of tolerance. The cultivars CL152 and CL142-AR were classified as the least and the most tolerant to drought based on TDRI and standard deviation, respectively. Even though both total root(R^2 = 0.98) or shoot(R^2 = 0.76) drought responses indices were positively correlated with TDRI, root traits were important in deriving the indices. Therefore, TDRI could be used to select cultivars for drought tolerance in a given environment and develop rice varieties with early-season drought tolerance. However, further research is needed to identify and characterize tolerance at other stages to assist breeding programs in rice. | Bhupinder SINGH Kambham Raja REDDY Edilberto Diaz REDONA Timothy WALKER | 2017 | Rice science2017，24，6： | 3 |
| 2 | Quantitative trait locus analysis for rice panicle and grain characteristics显示文摘 | Redona E D Mackill D J | 1998 | Theoretical and Applied Genetics1998，96，： | 1 |
| 3 | Level of polymorphism and genetic mapping of AFLP markers in riee显示文摘 | MACKILL D J Zhang Z Redona E D | 1996 | Genome1996，93，： | 1 |
| 4 | Quantitative trait locus analysis for rice panicle and grain characteristics显示文摘 | Redona E D Mackill | 1998 | Theor Appl Genet1998，96，： | 1 |
| 5 | Quantitative trait locus analysis for rice panicle and grain characteristics 显示文摘 | Redona E D Mackill D J | 1998 | Theor Appl Genet1998，96，： | 1 |
| 6 | Quantitative trait locus analysis for rice panicle and grain chracteristics显示文摘 | Redona E D Mackili D J | 1998 | Theor Appl Genet1998，96，： | 1 |
| 7 | Level of polymorphism and genetic mapping of AFLP markers in rice显示文摘 | Mackill D J Zhang Z Redona E D | 1996 | Genome1996，39，5： | 1 |
| 8 | Level of Polymorphism and Genetic Mapping of AFLP Markers in Rice显示文摘 | Zhong Z Redona E D | 1996 | Genome1996，，39： | 1 |
| 9 | Level of polymorphismand genetic mapping of AFLP markers in rice显示文摘 | MACKILL D J ZHANG Z REDONA E D | 1996 | Genome1996，39，5： | 1 |
| 10 | Level of polymorphism and genetic mapping of AFLP markers in rice显示文摘 | Mackill DJ Zhang Z Redona ED Colowit PM | 1996 | Genome1996，39，： | 1 |
| 11 | Level of polymorphism and genetic mapping of AFLP markers in rice显示文摘 | MACKILL D J ZHONG Z REDONA E D | 1996 | Genome1996，，39： | 1 |
| 12 | Level of polymorphism and genetic mapping of AFLP markers in rice 显示文摘 | Mackill D J Zhang Z Redona ED | 1996 | Ge?nome1996，39，： | 1 |
| 13 | Quantitative trait locus analysis for rice panicle and grain characteristics 显示文摘 | Redona E D Mackill D J | 1998 | Theor Appl Genet1998，96，： | 1 |
| 14 | Level of polymor- phism and genetic mapping of AFLP markers in rice 显示文摘 | Mackill D J Zhang Z Redona E D | 1996 | Ge- nome1996，39，： | 1 |
| 15 | Level of polymorphism and genetic mapping of AFLP marker sinrice显示文摘 | Mackill D J Zhang Z Redona E D et a1 | 1996 | Genome1996，39，： | 1 |
| 16 | Level of polymorphsim and genetic mapping of AFLP markers in rice显示文摘 | Zhang Z Redona E D | 1996 | Genome1996，39，： | 1 |
| 17 | Advances in hybrid rice technology in the Philippines 显示文摘 | Obien S R Redona E D Malabanan F M | 1999 | International Rice Commission Newsletter1999，48，： | 1 |
| 18 | Level of polymorphism and genetic mapping of AFLP markers in rice 显示文摘 | Maekill D J Zhang Z Redona E D | 1996 | Genome1996，39，5： | 1 |
| 19 | Genetic variation for seedling vigor traits in rice显示文摘 | Redona E D Machill D J | 1996 | crop sci1996，36，： | 1 |
| 20 | Quantitative trait locus analysis for rice panicle and grain characteristics显示文摘 | Redona E D Marckill D J | 1998 | Theor Appl Genet1998，96，： | 1 |
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