鲁南地区不同类型甘薯新品种筛选试验

Screening of Different Types of New Sweet Potato Varieties in Southern Shandong

通过2011-2012年连续两年试验，筛选出徐薯22、商薯19和徐薯27共3个适宜鲁南地区种植的高产耐肥型甘薯新品种，其鲜薯和薯干产量均比对照增产20％以上，且公顷薯干产量均超过了15000 kg；筛选出徐薯27、济薯25和济薯21共3个高产耐瘠薄型甘薯新品种，鲜薯和薯干产量分别比对照增产10％以上；筛选出1个优质鲜食型甘薯新品种烟薯25，鲜薯产量比对照增产20％以上，熟食味优，适宜推广指数为82．0。

Through two-year test in 201 1 -2012,three new sweet potato varieties with high yield and fertilizer resistance and suitable for planting in southern Shandong,Xushu 22,Shangshu 19 and Xushu 27, were screened out.Their fresh yield and dry matter yield all increased by over 20% compared with CK,and the dry matter yield per hectare was more than 15 000 kg.Three new sweet potato varieties with high yield and barren resistance,Xushu 27,Jishu 25 and Jishu 21,were screened out.And their fresh yield and dry matter yield all increased by over 10% compared with CK.One new sweet potato variety with high quality and good taste,Yanshu 25,was screened out.The fresh yield increased by over 20%compared with CK.It tasted bet-ter after cooking,and the promotion index was 82.0.