中国油菜区试新品种产量和品质性状分析
《中国油菜区试新品种产量和品质性状分析》由会员分享,可在线阅读,更多相关《中国油菜区试新品种产量和品质性状分析(3页珍藏版)》请在装配图网上搜索。
1、中国油菜区试新品种产量和品质性状分析p 翻开文本图片集【摘要】:p 】:对20_220_年国家冬、春油菜参试的2 075个新品种试验数据进展分析p ,发现国家区域试验油菜新品种以杂交品种为主,占90.84。冬油菜区主要性狀变异系数为单株产量0.29单株有效角果数0.26产量0.15每角果粒数0.11千粒重0.10种子含油量0.06;春油菜区主要性状变异系数为单株产量0.25单株有效角果数0.20产量0.12千粒重0.08每角果粒数0.06种子含油量0.05。产量整体呈上升趋势,且春油菜区产量明显高于其他区。单株产量与单株有效角果数整体呈下降趋势,且长江上游、下游区的这2个指标均高于其他各区。长
2、江上游、中游、下游区及黄淮区和春油菜区5个产区每角果粒数和千粒重与油菜产量呈极显著或显著正相关。春油菜区单株有效角果数与产量呈极显著正相关,而在黄淮区、长江上游、长江中游、长江下游区二者呈极显著或显著负相关。长江上游区、黄淮区和春油菜区单株产量与油菜产量呈极显著正相关。各区单株有效角果数与单株产量、产量与种子含油量均呈极显著正相关。因此,进步油菜新品种的每角果粒数和千粒重将是中国油菜遗传改进的重中之重。【关键词】:p 】:油菜;区试品种;产量;品质中图分类号:S565.4 文献标识码:A文章编号:0439-811420_22-0033-08DOI:10.14088/jki.issn0439-8
3、114.20_.22.008 开放科学资效劳标识码OSID:Analysis on yield and quality characters of new rapeseed varieties tested in ChinaFEI Jin-zong1,SHEN Jin-_iong2,GUO Yan-li3,LI Hai-bo21.Agriculture and Forestry Institute of Longgan Lake Management District in Huanggang City,Huanggang 435500,Hubei,China;2.National Resea
4、rch Center of Rapeseed Engineering and Technology,Huazhong Agricultural University,Wuhan 430070,China;3.Crop Research Institute of Tianjin Academy of Agricultural Sciences,Tianjin 300384,ChinaAbstract: The e_perimental data of 2 075 new varieties of national ter and spring rapeseed from 20_2 to 20_
5、were analyzed.It was found that the new varieties of rapeseed tested in China were mainly hybrid varieties, accounting for 90.84.The coefficient of variation of main characters in ter rapeseed area was yield per plant0.29effective pod number per plant0.26yield0.15grain number per pod0.111 000-grain
6、weight0.10seed oil content0.06.The coefficient of variation of main characters in spring rapeseed area was yield per plant0.25effective pod number per plant0.20yield0.121 000-grain weight0.08grain number per pod0.06seed oil content0.05.The overall yield showed an upward trend, and the yield of sprin
7、g rapeseed area was significantly higher than that of other areas.The yield per plant and the number of effective kernels per plant showed a downward trend as a whole, and the two inde_es in the upper and lower reaches of the Yangtze River were higher than those in other regions.The grain number per
8、 pod and the thousand-grain weight of each of the five areas in the upper, middle and lower reaches of the Yangtze river, the Huanghuai area and the spring rapeseed area were e_tremely significantly or significantly related to the yield of the rapeseed.In spring rapeseed area, the yield had signific
9、ant positively correlation to the grain number per pod, whereas in the upper, middle and lower Yanglze river and Huanghuai area rapeseed area they had e_tremely significantly or significantly negatively correlation.There was a significant positive correlation between the yield per plant and the yiel
10、d of rapeseed in the upper reaches of the Yangtze river, Huanghuai and spring rapeseed area.The number of effective kernels per plant was positively correlated with the yield per plant, and the yield was positively correlated with the oil content of seeds.Therefore, increasing the grain number per pod and 1000-grain weight of new rape varieties will be the most important thing in the geic improvement of rapeseed in China.第 3 页 共 3 页
- 温馨提示:
1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 装配图网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。