| Effect of non-flooded cultivation pattern on yield and quality of rice and its growth characteristics in Yangtze basin |
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| DOI：10.7606/j.issn.1000-7601.2009.02.15 |
| Key Words: rice dry-cultivation mulched with straw dry-cultivation mulched with film moist-cultivation grain yield rice quality growth character |
| Author Name | Affiliation | | XU Guowei | Agricultural College Henan University of Science and Technology,Luoyang,He’nan 471003,China；Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Yangzhou University,Yangzhou,Jiangsu 225009,China | | WANG HeZheng | Agricultural College Henan University of Science and Technology,Luoyang,He’nan 471003,China | | WANG Zhiqin | Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Yangzhou University,Yangzhou,Jiangsu 225009,China | | LIU Lijun | Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Yangzhou University,Yangzhou,Jiangsu 225009,China | | YANG Jianchang | Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Yangzhou University,Yangzhou,Jiangsu 225009,China |
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| Abstract: |
| Two rice cultivars, Shanyou 63 (An indica hybrid rice combination) and Yangdao 6 (Indica) , were used to investigate the grain yield and quality of rice cultivated with different methods and the relations with grain filling.The results showed that there was no significant difference in the grain yield between DCMS and moist-cultivation (MC) , but the grain yield of DCMS was significantly higher than that of dry-cultivation mulched with film (DCMF) or that of bare cultivation (BC) .The differences in the milling quality, appearance quality, and cooking and nutrient quality of rice were not significant between DCMS and MC.Grains from DCMF and BC had higher chalkiness, smaller gel consistency, when compared with those from MC.Peak viscosity and breakdown values were reduced and setback values of the starch profile of rice endosperm were increased under dry-cultivation, specially under DCMF.DCMS rice showed slower tillering before the critical stage of productive tillers and higher percentage of productive tillers than MC and DCMF rice.Dry matter accumulation of shoot from heading to maturity under DCMF was lower, when compared with that under MC, but significantly higher than that under DCMF or under BC.Remobilization of assimilates from vegetative tissues to grains and harvest index were higher under DCMF than those under MC.Reasons for the differences in the formation of grain yield and quality among DCMS, DCMF and MC were also discussed. |
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