论文部分内容阅读
对2006～2010年参加江西省区试的12个荣丰A所配组合的8个主要农艺性状进行表型值分析、相关分析和通径分析,结果表明:有效穗、株高、穗总粒数、穗实粒数、千粒重和产量等6个性状的变异系数相对较大,结实率和穗长的变异系数较小;结实率与产量呈极显著简单正相关,其余6个性状与产量呈简单正相关;有效穗、株高和穗实粒数等性状对产量形成起正向直接作用,穗长、穗总粒数、结实率和千粒重等性状对产量起负向直接作用。对产量形成的作用大小依次为:穗实粒数>穗总粒数>结实率>株高>有效穗>穗长>千粒重。
The phenotypic value analysis, correlation analysis and path analysis of 8 main agronomic traits which were combined with 12 Rongfeng A in Jiangxi Province from 2006 to 2010 were conducted. The results showed that effective panicle, plant height, The coefficient of variation of 6 traits, the grain yield per panicle, grain weight per panicle, 1000-grain weight and yield were relatively large, and the coefficient of variation of seed setting rate and ear length were small. The seed setting rate and yield were extremely significant and simple positive correlation, while the other 6 traits and yield The spike length, total spikelets per panicle, seed setting rate and 1000-grain weight had a negative direct effect on the yield. The order of the effect on yield formation was as follows: spikelet number> total number of spike> seed setting rate> plant height> effective spike> ear length> 1000-grain weight.