[1]周琴,姜东,戴廷波,等.不同基因型小麦籽粒蛋白质和淀粉积累与碳氮转运的关系[J].南京农业大学学报,2002,25(3):1-4.[doi:10.7685/j.issn.1000-2030.2002.03.001]
 ZHOU Qin,JIANG Dong,DAI Ting bo,et al.Grain protein and starch accumulation and its relationship to remobilization of carbon and nitrogen in different wheat genotypes[J].Journal of Nanjing Agricultural University,2002,25(3):1-4.[doi:10.7685/j.issn.1000-2030.2002.03.001]
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不同基因型小麦籽粒蛋白质和淀粉积累与碳氮转运的关系()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
25卷
期数:
2002年3期
页码:
1-4
栏目:
出版日期:
2002-08-30

文章信息/Info

Title:
Grain protein and starch accumulation and its relationship to remobilization of carbon and nitrogen in different wheat genotypes
作者:
周琴姜东戴廷波荆奇曹卫星
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
Author(s):
ZHOU Qin JIANG Dong DAI Ting bo JING Qi CAO Wei xing
Key Laboratory of Crop Growth Regulation, Ministry of Agriculture, Nanjing Agric Univ, Nanjing 210095, China
关键词:
小麦 籽粒蛋白质积累 籽粒淀粉积累 碳/氮运转
Keywords:
wheat grain protein accumulation grain starch accumulation carbon and nitrogen remobilization
分类号:
S512.101
DOI:
10.7685/j.issn.1000-2030.2002.03.001
文献标志码:
A
摘要:
研究了黑麦 76、徐州 2 6、扬麦 10号和扬麦 9号 4个不同基因型小麦 (TriticumaestivumL .)籽粒蛋白质和淀粉积累特征及叶茎鞘中碳、氮物质积累和运转的差异。结果表明 :蛋白质含量不仅与后期回升时间有关 ,还和回升速度有关 ;淀粉含量主要和前期的快速积累有关。籽粒蛋白质产量与含量没有相关关系 ,而与营养器官氮素转运量关系密切 ;籽粒淀粉产量由低到高为黑麦 76、徐州 2 6、扬麦 10号、扬麦 9号 ,并随淀粉含量升高而上升。不同基因型小麦茎鞘碳、氮积累和运转有明显差异 :黑麦 76和扬麦 10号碳、氮在灌浆后期向籽粒中的转运量少 ,而徐州 2 6和扬麦 9号转运量多。营养器官可溶性糖与氮素转运量的比值与籽粒蛋白质含量呈负相关 ,与淀粉含量呈正相关。因此 ,营养器官碳、氮积累与分配的差异可能是小麦籽粒蛋白质和淀粉含量差异的重要原因之一。
Abstract:
Four wheat genotypes differing in grain protein content, Heimai 76, Xuzhou 26, Yangmai 10 and Yangmai 9, were used in the experiment to study the accumulation pattern of grain protein and starch, carbon and nitrogen accumulation and remobilization in vegetative organs. Protein content correlated both to the timing and rate of protein content re increasing, and starch to quick accumulation at the first stage of grain filling. Grain protein content was not related to grain protein yield, but related to N remobilization quantity. Heimai 76 and Yangmai 10 had lower protein yield and N remobilization quantity than that of Xuzhou 26 and Yangmai 9.Grain starch content was positively related with grain starch yield, with the declining order of starch yield as Yangmai 9, Yangmai 10, Xuzhou 26, Heimai 76.The accumulation and remobilization of carbon and nitrogen in vegetative organs of different genotypes showed different patterns during the course of grain filling. Heimai 76 and Yangmai 10 transferred less carbon and nitrogen reserves from vegetative parts to grain than Xuzhou 26 and Yangmai 9 did. The ratio of transferred soluble sugar and nitrogen in vegetative organs was negatively correlated to grain protein content, and positively to grain starch content. Therefor, the different accumulation and remobilization pattern of carbon and nitrogen in vegetative organs may be one of the major reasons for different grain protein and starch contents.

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备注/Memo

备注/Memo:
国家自然科学基金资助项目(30170544);江苏省自然科学基金资助项目(BK99054)
更新日期/Last Update: 2002-08-30