[1]杨铁钢,戴廷波,曹卫星.施氮水平对不同品质类型小麦花后碳氮同化和转运的影响[J].南京农业大学学报,2008,31(2):6-10.[doi:10.7685/j.issn.1000-2030.2008.02.002]
　YANG Tie-gang,DAI Ting-bo,CAO Wei-xing.Effects of nitrogen rates on assimilation and translocation of carbon and nitrogen after anthesis in two wheat cultivars[J].Journal of Nanjing Agricultural University,2008,31(2):6-10.[doi:10.7685/j.issn.1000-2030.2008.02.002]
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施氮水平对不同品质类型小麦花后碳氮同化和转运的影响()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
31卷
期数:
2008年2期
页码:
6-10
栏目:
OA栏目
出版日期:
2008-05-30

文章信息/Info

Title:
Effects of nitrogen rates on assimilation and translocation of carbon and nitrogen after anthesis in two wheat cultivars
作者:
杨铁钢; 戴廷波; 曹卫星
南京农业大学农业部作物生长调控重点开放实验室,江苏,南京,210095;河南省农业科学院经济作物研究所,河南,郑州,450002
Author(s):
YANG Tie-gang;  DAI Ting-bo;  CAO Wei-xing
Key Laboratory of Crop Growth Regulation, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China; Economical Crop Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
关键词:
小麦;  非结构性碳水化合物;  碳转运量;  碳同化量;  氮转运量;  氮同化量
Keywords:
wheat;  non-structural carbohydrate;  carbon translocation;  carbon assimilation;  nitrogen translocation;  nitrogen assimilation
分类号:
S512.1
DOI:
10.7685/j.issn.1000-2030.2008.02.002
文献标志码:
A
摘要:
以2个不同品质类型小麦品种为材料,研究了5个施氮水平下花后植株非结构性碳水化合物和氮素化合物的同化、转运及其相互关系。结果表明,花后氮同化量约为转运量的10%~40%,而花后碳同化量则为转运量的0.5~2.5倍。高蛋白品种豫麦47花后氮素和碳水化合物的转运量均较高,低蛋白品种豫麦50花后碳水化合物同化量较高。随施氮水平的提高,豫麦47的氮素转运量提高了45%,氮素同化量减少了84%,花后碳水化合物同化量提高了37%;而豫麦50的氮素转运量变化较小,氮素同化量减少了63%左右,花后碳水化合物同化量提高了63%,两品种碳水化合物转运量变化幅度较小。因此,适当提高施氮水平,对2种品质类型小麦可起到提高产量和改良品质的作用。
Abstract:
The experiment was conducted to study the ralationships between assimilation and translocation of carbon and nitrogen after anthesis in two wheat cultivars under five nitrogen rates. The results showed that both amount of nitrogen translocation and that of carbohydrate translocation were higher in Yumai 47 with high grain protein content than in Yumai 50 with low grain protein content, whereas amount of carbon assimilation was higher in Yumai 50, and there was no significant difference in amount of nitrogen assimilation between Yumai 47 and Yumai 50.The ratio of nitrogen assimilation amount/nitrogen translocation amount was ralatively low, accounting for 10% to 40%, whereas the amount of carbon assimilation accounted for more in amount of carbohydrate translocation, with 0.5-2.5 times higher than the amount of carbohydrate translocation. With the increased nitrogen rates, the amount of nitrogen assimilation in two genotypes decreased, the amount of nitrogen translocation increased by 45% in Yumai 47, but was stable in Yumai 50, and the amount of carbon assimilation increased 37% in Yumai 47 and 63% in Yumai 50.However, with the increased nitrogen rates, the amount of carbohydrate translocation showed less change.

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备注/Memo

备注/Memo:
国家自然科学基金项目(30200166);江苏省自然科学基金项目(BK2005212)
更新日期/Last Update: 2008-05-30