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- W2378261330 abstract "In order to find out the high-yielding components and their regulation in regenerative production of hybrid rice Tianyou 3301,interval sowing experiments were carried out,and yield components at different yield levels were investigated in Youxi county of Fujian province in 2007~2008.The results indicated that the accumulative temperature from the sowing of main rice to the heading of regenerative rice of Tianyou 3301 was 4000 ℃.Under the condition of early sowing and early transplanting,the vegetative growth stage of main rice was prolonged obviously,its setting stage overlapped with the high-value period of light and temperature,and the regenerative rice could safely tassel,which was beneficial for the formation of population with many and large spikes and high setting rate.In early sowing and early transplanting field,the main yield components were the number of spike and grains per spike,and their contribution rate to yield formation was up to 95%.The contribution rate of grains per spike in main rice and the number of spike in regenerative rice to yield increase was the highest.In late sowing and late transplanting field,the scant light in ripening period of main rice and chilling injury in flowering and ripening period of regenerative rice resulted in low setting percentage and low yield.When Tianyou 3301 was planted as regenerative rice,it should be sowed and transplanted early with rational planting density.The key to realize high yield of main rice was large spike on the basis of adequate spikes,and the key to obtain high yield of regenerative rice was to promote the germination of auxiliary buds in order to form 170%~200% more spikes than the main rice." @default.
- W2378261330 created "2016-06-24" @default.
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- W2378261330 date "2009-01-01" @default.
- W2378261330 modified "2023-09-23" @default.
- W2378261330 title "High-yielding Components and Their Regulation in Regenerative Production of Hybrid Rice Tianyou 3301" @default.
- W2378261330 hasPublicationYear "2009" @default.
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