单粒型甜菜杂交种吉洮单301的选育

The breeding of mongerm sugarbeet hybrid－Jitao mono 301

吉洮单301为单粒雄性不育杂交种，较丰产、高糖、高抗甜菜褐斑病，较耐甜菜根腐病和丛根病。在1995～1997年吉林省甜菜品种区域试验中，其根产量、含糖率、产糖量分别比HYB－13提高－2．71％、1．7度和8．34％；生产试验3项指标分别比HYB－13提高－2．03％、1．7度和9．01％，与国产单粒对照种吉甜单一比，则分别提高16．61％、1．3度和26．10％。在1997年国内外甜菜单粒种全国多点试验中，其根产量、含糖率和产糖量分别比甜研303提高15．5％、－0．11度和15．4％，比德国单粒种KWS5173分别提高－10．2％、3．05度和11．9％。

：Jitao mono 301 is sugarbeet monogerm MS hybrid with the character of higher root yield high sugar content and resistant to leafspot root rot and Rhizomania． Its average root yield sugar content sugar yield were higher than HYB－13CK1 by －2．71％ 1．66％ 8．34％ resp． and three items were over HYB－13 and Jitian monoCK2 by －2．03％ 1．70％ 9．01％ and 16．61％ 1．25％ 26．1％ resp． in Jilin Provincial production demonstration in 1995～1997 besides above mentioned three items were over Tianyan 303 and KWS 5173 by 15．5％ －0．11％ 15．4％ and －10．2％ 3．05％ 11．9％ resp． in the national sugarbeet trials in 1997．