CAJ | 학술논문

对230份水稻种质资源进行了光合速率及光合功能期测定，结果显示水稻种质资源的光合速率及光合功能期的品种内变异系数分别集中在2.0%～11.0%和3.5%～9.5%，而其品种间变异系数分别为11.1%和11.2%。统计分析表明，水稻品种间光合速率和光合功能期存在极显著差异，但籼、粳亚种间差异不显著。进一步分析籼粳亚种间品种分布，发现籼稻光合速率偏高者居多，而粳稻光合功能期偏长者居多，且其变异幅度大于籼稻。根据聚类结果，42个水稻品种可分别划分为光合速率高、中、低类和光合功能期长、中、短类3个类群。对供试水稻种质资源光合速率及光合功能期进行二维排序并将坐标分成4个象限。籼稻和粳稻分别在象限Ⅱ和Ｉ的分布频率最大，分别为33.4%和33.3%。从4个象限中选出一些具有特异光合性状的典型材料，如协优9308、轮回422、武育粳8号、NPT、汕优129等，可用于优化水稻杂交配组及光合遗传改良研究。
대230빈수도충질자원진행료광합속솔급광합공능기측정，결과현시수도충질자원적광합속솔급광합공능기적품충내변이계수분별집중재2.0%～11.0%화3.5%～9.5%，이기품충간변이계수분별위11.1%화11.2%。통계분석표명，수도품충간광합속솔화광합공능기존재겁현저차이，단선、갱아충간차이불현저。진일보분석선갱아충간품충분포，발현선도광합속솔편고자거다，이갱도광합공능기편장자거다，차기변이폭도대우선도。근거취류결과，42개수도품충가분별화분위광합속솔고、중、저류화광합공능기장、중、단류3개류군。대공시수도충질자원광합속솔급광합공능기진행이유배서병장좌표분성4개상한。선도화갱도분별재상한Ⅱ화Ｉ적분포빈솔최대，분별위33.4%화33.3%。종4개상한중선출일사구유특이광합성상적전형재료，여협우9308、륜회422、무육갱8호、NPT、산우129등，가용우우화수도잡교배조급광합유전개량연구。
Two hundred and thirty rice germplasm resources were used to analyse their photosynthetic rates (Pn) and function duration (RSP).The results showed that the variation coefficient of Pn and RSP of individuals within a rice variety was 2.0%—11.0% and 3.S%—9.5%,but it was 11.1% and 11.2% among rice varieties,respectively.Analysis of statistics with experimental results showed that the difference of Pn and RSP among rice varieties was significant at 1% level,but not between indica and japonica rice.The numbers of indiea rice with high Pn and japonica rice with long RSP were relatively more.According to the clustering results,42 rice varieties were separated into three groups,i.e.high,middle and low of Pn and RSP,respectively.Two dimension compositor was made in rice varieties for Pn and RSP,and this coordinate was divided into 4 quadrants.The distribution frequency of indica and japonica rice varieties was the highest in the second and first quadrant,respectively.Some rice varieties regarded as special photosynthesis resources were screened out,such as Xieyou 9308,Lunhui 422,Wuyujing 8,NPT,Shanyou 129.They might be used to optimize rice crossing and study photosynthesis heredity improving in rice.