摘要
为准确评价不同玉米品种在鲁南地区的适应性,对21个参试品种的生育期、株高、穗位等生物学性状及穗长、穗粗、秃尖长、穗行数、行粒数、百粒重等穗部产量性状及出籽率、产量等进行分析。结果表明:供试品种在鲁南地区均能正常成熟;百粒重、出籽率与产量呈显著正相关,相关系数分别为0.705、0.601;对10个性状进行主成分分析,前4个主成分中产量、出籽率、百粒重、穗粒数、穗长、穗粗、秃尖长、株高、穗位、穗行数10个主要指标的累积贡献率达85.5%。在鲁南地区表现突出,得分在0.5以上的品种:伟科702、迪卡517、联创808、先玉047、郑单309、金博士509、登海618、浚单20、郑单958、登海605、农大372、华美1号、鲁单9066等,这些品种适宜在鲁南地区推广种植。
In order to accurately evaluate the adaptability of different maize varieties in South Shandong region, the yield characters of 21 varieties, such as growth period, plant height, ear position, ear length, ear diameter, bald tip length, ear row number, row grain number and hundred grain weight, as well as seed yield and yield were analyzed. The results showed that all the tested cultivars could mature normally in Lunan area. There was a significant positive correlation between the 100 seed weight, seed yield and yield, and the correlation coefficients were 0.705 and 0.601, respectively. Principal component analysis of 10 traits showed that the cumulative contribution rate of the first 4 principal components, including yield, seed yield, hundred grain weight, number of grains per ear, spike length, ear thickness, bald tip length, plant height, spike position and dozens of spike lines, reached 85.50%.The varieties with outstanding performance above 0.5 in the South of Shandong were Weike 702, Dika 517, Lianchuang 808, Xianyu 047, Zhengdan 309, Dr. Jin 509, Denghai 618, Dredge 20, Zhengdan 958, Denghai 605, Nongda 372, Hua-Mei 1, And Ludan 9066, which were suitable for the promotion of planting in the south of Shandong.
作者
张春艳
吴荣华
庄克章
齐孝峰
李新新
李静
ZHANG Chunyan;WU Ronghua;ZHUANG Kezhang;QI Xiaofeng;LI Xinxin;LI Jing(Linyi Agricultural Academy of Sciences,Linyi,Shandong 276012,China)
出处
《作物研究》
2020年第4期323-327,337,共6页
Crop Research
基金
国家重点研发计划项目(2017YFD0301003)。
关键词
玉米
适应性
农艺性状
主成分分析
鲁南地区
maize
adaptability
agronomic traits
subordinate function method
south Shandong
