文献类型: 外文期刊
第一作者: Wang Dan-ying
作者: Wang Dan-ying;Xu Chun-mei;Chen Song;Tiao Long-xing;Zhang Xiu-fu
作者机构:
关键词: rice;photosynthesis;dry matter accumulation;chlorophyll-deficient;isogenic lines
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2012 年 11 卷 3 期
页码:
收录情况: SCI
摘要: Three different chlorophyll-deficient rice isogenic lines chl, fgl and pgl, and their recurrent parent zhefu802 (zf802) were used to study effects of leaf color on photosynthesis, dry matter accumulation, yield, and quality in early season indica rice. Analysis showed that the chlorophyll (Chl.) a/b ratio of isogenic lines ch1-8, pgl and fgl was 5.35, 10.00 and 15.46, respectively, among them, line fgl had higher leaf area index (LAI), higher net photosynthetic rate and higher grain-filling rate than its recurrent parent zf802 at the later period of grain filling stage; while LAI, net photosynthetic rate and dry matter accumulated in lines ch1-8 and pgl were lower than in zf802. Differences were found in the grain yield and quality among chlorophyll deficient isogenic lines, lines fgl, ch1-8 and zf802 had similar grain yield, which was significantly higher than that of pgl; the highest milling quality was observed in isogenic line fgl, with relatively high protein content. This study showed that isogenic line fgl would become a unique material for the development of high yield rice with high grain quality because of its slow aging process and relative steady grain-filling rate.
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