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- W2382037265 abstract "The changes of dry matter production characteristics and its relationship with yield traits of fourteen rice varieties released from 1958 to 2004 were investigated.The results showed that yield,biomass and harvest indexes increased significantly with the increase of release year,by 66.9%,28.1% and 14.8% respectively during 47 years.Dry matter accumulation after heading increased significantly and was positively correlated with grain yield,and contribution of dry matter accumulation after heading to grain ranged from 58.3% to 99.0%.There was no significant correlation between dry matter accumulation after heading and yield,but contribution of remobilized pre-heading assimilation to grain ranged from 1.0% to 41.7%.Net biomass accumulation of single stem from tillering to heading was significantly positively correlated(r=0.656* *) with yield.Panicle weight increase rate and net assimilation rate 10 days after heading were significantly positively correlated with release years and yield.The results suggest that dry weight of single stem can act as a utility appreciation index,whether there is suitable population structure at early growth stage of rice or not,and improvement in yield should focus on increasing post-heading dry matter productivity in Jilin province." @default.
- W2382037265 created "2016-06-24" @default.
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- W2382037265 date "2012-01-01" @default.
- W2382037265 modified "2023-09-26" @default.
- W2382037265 title "Characteristics of Dry Matter Accumulation in Genetic Improvement of Rice Varieties in Jilin Province" @default.
- W2382037265 hasPublicationYear "2012" @default.
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