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《China Rice》 2016-05
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Analysis on Population Characteristics for Super High Yielding Glabrous Japonica Rice Jia 58

CAI Zhijun;PAN Riding;LIU Guifu;GAO Rongcun;LI Jinjun;Jiaxing Academy of Agricultural Science;Taizhou Agricultural Materials Co.Ltd.;Institute of Genetics and Developmental Biology,Chinese Academy of Sciences;  
The yield components, tillers dynamic, leaf area index dynamic, dry matter accumulation and harvest index of three yield populations(super-high-yielding field, SHYF≥11.25 t/hm2; high-yielding field, 11.25 t/hm2HYF≥9.75 t/hm2; common production field, 9.75 t/hm2PF ≥7.5 t/hm2)were researched in 2014 and 2015, with Jia58, a glabrous japonica rice, as material. The results showed that total spikelets of SHYF were higher than HYF and PF obviously, the difference of seed setting rate and 1 000-grain weight were similar. The tillers of SHYF increased more placid than HYF and PF, the number of invalid tiller and the highest titller were smaller, the ratio of productive tiller percentage was higher during critical period of effective tiller to jointing stage. Meanwhile,the leaf area index, biomass at heading stage and harvest index of SHYF significantly improved, compared with HYF and PF. The key economic indicators and the cultivation techniques of Jia 58 were discussed in this study.
【Fund】: 嘉兴市重点项目(2012AZ1004);; 浙江省重大项目(2010C1202)
【CateGory Index】: S511.22
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