摘要
研究了4个不同基因型大豆(Glycinemax)上海95-1、垦鉴14、早熟18、930257的生物学特征。结果表明,4个大豆品种的单株叶面积随时间的变化动态可以用修正的logistic曲线^y=k(1+ea+bt+ct2+dt3)-1来拟合。其单株最大叶面积与生育天数呈极显著正相关(r=0.9953,P<0.01),各品种单株叶面积日增长(cm2/株·日)最大值出现时间,上海95-1、恳鉴14与结荚始期相一致,早熟18和930257与开花期相一致,进入结荚期以后,叶面积日增长随时间日趋减缓。4个品种的地上部风干重增长动态可以用y=k(1+ea+bt)-1方程(F>F0.01)来拟合。单株地上部风干重最大日增重值(g/株·日)与结荚盛期相一致,较单株叶面积最大日增速出现时间滞后15d左右。上海95-1,垦鉴14,早熟18三品种地上部各器官干物质分配比例趋于一致,籽实重平均占36.3%,叶片重占25.1%,荚皮重占20.57%,茎重占17.93%;930257地上部生物量分配比例与上述三品种不相一致,其叶片所占比例最高,达35%,茎重占32.4%,粒重占18%,荚皮占14.8%。
The biological characteristics of four different soybean varieties were studied. Dynamic simulation models using logistic regression equations for plant leaf-area and plant aboveground air-dried weight over time were established. Results showed a very significant positive relationship between the single-plant largest leaf-area and growing days (r=0.9953, P<0.01). The fastest leaf-area accumulation per plant occurred from early flowering to early pod setting. The fastest aboveground air-dried weight accumulation per plant occurred in the last stage of pod setting. The proportion of dry matter in the different organs aboveground was the same for the three varieties Shanghai 95-1, kenjian14, and early maturity 18, with the grain weight on average occupying 36.3%, and leaf, pod waste, and stem weight occupying 25.1%, 20.57%, and 18%, respectively. Variety 930257 was different with leaf, stem weight, grain weight, and pod waste occupying 35%, 32.4%, 18%, and 14.8% of total biomass, respectively.
出处
《草业学报》
CSCD
2004年第4期70-75,共6页
Acta Prataculturae Sinica
基金
国家重点基础研究发展规划项目(G200018602)
国家自然科学基金西部重大研究计划项目(90102011)
农业部农牧交错带生态农业建设研究与示范项目资助。
关键词
基因型
单株叶面积
单株日增重
genotype
plant leaf-area
plant daily weight increase
