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- W2354611739 abstract "High-protein variety Jingdong 8and low protein variety Baomai 38was used to investigate the effect of nitrogen(N)rate on dry matter accumulation and yield formation of wheat under irrigated and rainfed conditions.The results showed that with the proper increase of N rate,the amounts of accumulation and translocation of dry matter in the leaves,stems and sheathe increased,and the number of grain and spikelet of the two cultivars increased,but the translocation of dry matter accumulated before flowering was reduced while high N rate under irrigated condition.The effects of N application on the 1 000grain weight varied with wheat genotypes and soil moister contents.With the increase of N application rate,the 1 000grain weight of Jingdong 8decreased under rainfed condition and increased under irrigated condition,while that of Baomai 38decreased under both conditions.Increasing N rate properly might promote tillering and improve ratio of spikes to tillers.Compared with that under rainfed condition,plant dry matter accumulation was increased,the total number of spikes at mature stage was improved,and the duration of grain filling was prolonged under irrigated condi-tion,which resulted in a higher grain yield.The highest yield was obtained for both cultivars at N rate of 120kg·hm-2 under rainfed conditions,and it was obtained at N rate of 120kg·hm-2 for Baomai 38and at 240kg·hm-2 for Jingdong 8under irrigated conditions.Under the test conditions,the appropriate N amount for Baomai 38was 120kg·hm-2,but that for Jingdong 8was 120~240kg·hm-2." @default.
- W2354611739 created "2016-06-24" @default.
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- W2354611739 date "2014-01-01" @default.
- W2354611739 modified "2023-10-04" @default.
- W2354611739 title "Effects of Nitrogen Application Rate on Dry Matter Accumulation and Grain Yield of Winter Wheat under Irrigated and Rainfed Conditions" @default.
- W2354611739 hasPublicationYear "2014" @default.
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