甘薯新品种湘薯19号的品种特性和栽培技术

湘薯19号是湖南省作物研究所1998年用徐薯18作母本,Georgia red作父本经有性杂交获得种子,再经逐级试验选育而成.经湖南省多点试验平均鲜薯产量2 346.1 kg/667 m~2,薯干产量715.5 kg/667 m~2在不同区域进行生产示范,平均产鲜薯3 252.6 kg/667 m~2,薯干产量1 056.5 kg,均比对照南薯88增产显著.薯块烘干率33.5%左右,较抗薯瘟病兼抗黑斑病,耐旱、贮藏性好,熟食味香甜可口.栽培时应注意精选种薯、培育壮苗,深耕土地、高垄双行,合理施肥,加强田间管理,适时收获.

The Variety Characteristics and Cultural Technique of New Variety Sweet Potato-XIANG SHU No.19

XIANG SHU No.19 was developed by Hunan Crop Research Institute,which was bred by sexual hybridization through seedling gradual test and using XU SHU No.18 as female parent,Georgia red as male parent.The average yield of fresh tuber was 156.4 kg/hm~2 and the average yield of dried sweet potato was 47.7 kg/hm~2 in multilocation experiment in Hunan;the average yield of fresh tuber was 216.84 kg/hm~2 and the average yield of dried sweet potato was 70.43 kg/hm~2 in production demonstration at different areas,which all significantly increased compared with NAN SHU No.88.XIANG SHU No.19 have many good characteristics,such as drought tolerance,good storage,good taste,high resistance to blast and black spot,and its dried rate Was about 33.5%.There ale some key-points of cultural technique should be paid attention to that are showed as follows:select seed,culture strong seedlings,plough deep,twin-rows in high ridge,rational manuring,strengthening field management and harvest in time.