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modification of cultural practices
相关语句
  相似匹配句对
     Discontinuous Modification
     割裂修饰
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     On discontinuous modification
     浅议隔位修饰现象
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     聚丙烯的改性
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     Modification of Plexiglass
     有机玻璃的改性
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     On Cultural Psychology
     论文化心理
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In the late cropping season of 1996 in Cuangzhou, China, a high yield Indica rice variety of Tesan-Ai 2 was planted at elevated (600 μmol·mol- 1 ) or current ambient (350 μmol·mol-1 ) mole fraction of CO2,(xco2 ) from transplanting to harvest. The above-ground biomass was remarkedly increasd at elevated xco2.al all growth stages. The green lamina area was also significantly increased by elevated xco2. before heading, but it declined more rapidly after heading at elevated xco2. Grain yield, seed set rate and...

In the late cropping season of 1996 in Cuangzhou, China, a high yield Indica rice variety of Tesan-Ai 2 was planted at elevated (600 μmol·mol- 1 ) or current ambient (350 μmol·mol-1 ) mole fraction of CO2,(xco2 ) from transplanting to harvest. The above-ground biomass was remarkedly increasd at elevated xco2.al all growth stages. The green lamina area was also significantly increased by elevated xco2. before heading, but it declined more rapidly after heading at elevated xco2. Grain yield, seed set rate and 1000-grain weight were also enhanced, but the numbers of panicles/plant and grains/panicle were reduced at elevated xco2, respectively. The cooking quality as characterized by amylose content, gel consistency and alkali spreading value was not altered by xco2. but nutritional quality (protein and amino acid contents) dripped significantly at elevated xco2. We propose that modification of cultural practice, such as amount and timing of nitrogen application,should be made at elevated xco2. to achieve maxium pnduction of rice and keep the nutritional quality of rice kernel.

于1996年晚季,从移栽到收割水稻高产品种特三矮2号种植于高CO2浓度(xco2=600X10-6)与目前大气CO2浓度(xco2=350X10-6)的塑料大棚内.xco2浓度由自动监控系统调节控制在整个生育期内,地上部生物学产量在高xco2下显著增加抽穗前,绿叶面积在高CO2浓度下显著增加;但抽穗后,绿叶面积在高CO2浓度下下降更快高CO2浓度下,谷产量、结实率和千粒重增加,而穗数和每穗谷粒数下降蒸煮品质(包括直链淀粉含量,胶稠度和碱消值)不受CO2浓度影响;而营养品质(蛋白质与氨基酸含量)在高CO2浓度下显著下降.我们认为,为了获得水稻的最大生产力和保持米的营养品质,施氮的数量与时间在高CO2浓度下应该有所调整.

 
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