春甘蓝品质性状与裂球性关系研究  

Study on the correlation between qualitative characters and headsplitting of spring cabbage

作　　者：李思蓓[1] 张恩慧[1] 许忠民[1] 张孟利[1] 刘霞[1] 

机构地区：[1]西北农林科技大学园艺学院,陕西杨凌712100

出　　处：《东北农业大学学报》2016年第4期34-39,64,共7页Journal of Northeast Agricultural University

基　　金：国家科技支撑计划项目(2012BAD02B01);陕西省杨凌示范区农业科技示范推广能力提升项目(20122014-TS-16)

摘　　要：筛选春甘蓝耐裂球优质品种,探讨春甘蓝叶球品质帮叶比、紧实度、中心柱长度比值、干物质和粗纤维含量等5个性状与裂球性关系。选用春甘蓝30个F1为材料,叶球生理成熟后测量5个性状值并分析延迟5、10和15 d时裂球率和裂球指数与其相互关系。试验表明,裂球率5 d与帮叶比呈显著负相关(r=-0.521)、10 d与干物质含量呈显著负相关(r=-0.837)、15 d与紧实度和中心柱长度比值呈极显著正相关(r=0.810,r=0.837),与粗纤维含量呈极显著负相关(r=-0.868);裂球指数15 d与帮叶比、紧实度、中心柱长度比值、干物质和粗纤维含量呈极显著或显著相关(r=-0.740、0.755、0.625、-0.744、-0.636)。由此可见,春甘蓝叶球帮叶比大、结球较松、中心柱长度比值小且干物质与粗纤维含量高的品种耐裂球性较强。To screen splitting-tolerant and high-class spring cabbages, the correlation between five qualitative characters, petiole-leaf ratio, compactness, central column-head height ratio, dry matter contents and crude fiber contents included, and head-splitting was discussed. Selecting 30 F1 of spring cabbages, we studied five heading characteristics of physiological maturity and their relationship to rate and index of splitting 5, 10 and 15 d after maturity. The results showed that rate of head splitting was significantly negative correlated with petiole-leaf ratio（r =-0.521） when delayed 5 d and that content of dry matter（r=-0.837） when delayed 10 d. When delayed 15 d, rate of head splitting was highly significantly positive correlated with compactness and central column- head height ratio（r=0.810, r=0.837）, but negatively correlated with contents of crude fiber（r=-0.868）. At the same time, there were significant or highly significant correlations between index of head splitting and petiole-leaf ratio, compactness, central column-head height ratio and contents of dry matter and crude fiber（r =- 0.740, 0.755, 0.625,- 0.744,- 0.636）. In conclusion, spring cabbages with high petiole-leaf ratio, low compactness and central column-head height ratio as well as high contents of dry matter and crude fiber will be more tolerant to head-splitting.

关 键 词：春甘蓝 品质性状 裂球性 相关性 

分 类 号：S635.1[农业科学—蔬菜学]