播期与砍收期对茎瘤芥瘤茎产量和菜形的影响

Effect of Sowing Date and Date of Harvest on Yield and Shape of Tumorous Stem in Brassica juncea var.tumida Tsen et Lee

以茎瘤芥主栽品种"永安小叶"为试材,分析了播期与砍收期对茎瘤芥瘤茎产量和菜形的影响。结果表明:播期、砍收期对瘤茎产量和菜形有明显影响;播期推迟,瘤茎产量、菜形指数明显下降,菜形变优;砍收期推迟,瘤茎产量明显增加而菜形指数先降后升,菜形呈逐渐变劣的趋势。分析提出,在重庆海拔500m以下地区9月中旬播种,翌年2月中旬砍收能较好地实现瘤茎丰产与菜形美观的协调统一。

The mainly cultivated variety of tumorous stem mustard ‘ Yonganxiaoye ’ was used as materials,the effect of sowing date and date of harvest on yield and shape of tumorous stem were analyzed.The results showed that sowing date and date of harvest had prominent effects on yield and shape.Yield and tumorous stem index were obviously reduced and shape of tumorous stem becomed excellent with the postponement of sowing date.Yield increased and variation of tumorous stem index was from degressive to ascendant and shape inferior gradually with that of date of harvest.High yield cultivation combining with excellent shape should be sown in mid-September and harvested in mid-February next year in the area with altitude under 500min Chongqing.