烟薯套种甘薯品种筛选评价研究

目的]筛选适合烟薯套种的甘薯品种。方法]于2014和2015年连续2年分别在不同烟区进行烟薯套种条件下不同甘薯品种的筛选评价试验,筛选适宜烟薯套种的甘薯品种。结果]所有甘薯品种在烟薯套种情况下鲜薯产量均比纯作下减产,地上部蔓长增加,分枝数减少,地下部结薯数减少。结论]结合2年鲜薯产量和蔓长的变化情况,筛选出苏薯9号、商薯19、徐薯32、广薯87共4个甘薯品种最适宜烟薯套种。

Screening of the Sweet Potato Cultivar for Tobacco-sweet Potato Intercropping

Objective] To screen the proper sweet potato cultivar for tobacco-sweet potato intercropping.Method] Screening evaluation test of different sweet potato cultivars under the condition of tobacco-sweet potato intercropping were carried out in 2014 and 2015 in different tobacco areas.The proper sweet potato cultivars suitable for tobacco-sweet potato intercropping were screened.Result] The fresh tuber yield of all sweet potato cultivars reduced under the condition of tobacco-sweet potato intercropping compared with the condition of single cropping.The vine length of aboveground part increased,the branching number reduced,and tuber number of underground part reduced.Conclusion] Combining with the change situation of fresh tuber yield and vine length,four sweet potato cultivars were screened out,which were Sushu 9,Shangshu 19,Xushu 32 and Guangshu 87.