大豆品种遗传改良过程中叶片可溶性糖含量和比叶重的变化  

VARIATION OF SOLUBLE SUGAR CONTENT AND SPECIFIC LEAF WEIGHT DURING THE GENETIC IMPROVEMENT OF SOYBEAN CULTIVARS

作　　者：王晓慧[1] 徐克章[1] 李大勇[1] 张治安[1] 武志海[1] 陈展宇[1] 张秀荣 

机构地区：[1]吉林农业大学农学院,长春130118 [2]白依拉嘎乡农业技术推广站,前郭131113

出　　处：《大豆科学》2007年第6期879-884,共6页Soybean Science

基　　金：国家自然科学基金项目(30370862)

摘　　要：为探讨大豆品种遗传改良过程中可溶性糖含量和比叶重与产量的关系,研究了吉林省1923到2004年育成的30个大豆品种不同生育期叶片可溶性糖含量和比叶重的变化,并对大豆叶片可溶性糖含量和比叶重与产量的关系进行了分析。结果表明:大豆叶片的可溶性糖含量和比叶重都随育成年代而增加,从不同生育期来看,花期和结荚期的可溶性糖含量变化较明显,苗期和鼓粒期变化不明显;而比叶重在花期和鼓粒期明显高于苗期和结荚期。可溶性糖含量在花期和产量呈正相关,苗期和结荚期次之,鼓粒期呈负相关。比叶重在四个生育期都和产量呈正相关。因此,在大豆品种遗传改良过程中,可溶性糖含量和比叶重的性状得到了改善。There is increment in soybean yield during the past decades. Although soluble sugar content （SSC） and specific leaf weight （SLW） affect photosynthesis and yield,the contribution of these two traits to yield genetic improvement is unclear. The objective of this study was to elucidate the changes of SSC and SLW during genetic improvement of soybean cultivars, as well as their correlation with yield. Thirty soybean cultivars released from 1923 to 2004 in Jilin Province were planted in randomized complete block design trail in 2006 year. Plant sample were taken at each growth period and SSC and SLW were measured. SSC and SLW increased with the year released. SSC increased obviously at flowering and podding stages than at the seedling and seed-filling stages. SLW was higher at flowering and seed-filling stages than at seedling and podding stages. SSC positively correlated to yield at flowering stage, seedling and podding stages,while nega- tively correlated to yield at seed-filling stage. SLW positively correlated to yield at all four stages. The results Suggest that during genetic improvement of soybean cultivars,the SSC and SLW were improved .

关 键 词：大豆 遗传改良 比叶重 可溶性糖含量 产量 

分 类 号：S565.1[农业科学—作物学]