高产优质花生新品种“湘农小花生”的选育

“湘农小花生”是湖南农业大学花生研究所以湘花生1号为母本，湘潭小籽为父本进行有性杂交而选育的珍珠豆型小花生。其突出优点：一是保持了地方小籽品种的优异食味品质，增产显著，湖南省花生品种区域试验平均荚果产量3717．6kg／hm^2，比对照祁阳小籽增产12．5％；二是油酸与亚油酸比值（1．36）高于国家“十一五”科技支撑计划课题设定的出口型品种育种目标（1．30），货架寿命长，商品性好；三是早熟，种子休眠性强，综合抗性好，耐酸、耐瘠性均强，高抗叶斑病，中抗锈病、焦斑病，白绢病、立枯病轻。2009年4月通过湖南省品种审定委员会审定登记。

Breeding of High-yielding and Good Quality Groundnut Cultivar Xiangnong Xiaohuasheng

＂Xiangnong Xiaohuasheng＂, a spanish type small peanut cultivar, was bred by sexual hybridization （Xianghuasheng 1 × Xiangtan Xiaozi） by Hunan Agricultural University. It has outstanding characteristics： 1） On the basis of keeping nice traditional taste quality of local small-seed cultivar, it amounted 3717.6 kg/hm^2 pod yield, stably and significantly higher than control cultivar Qiyang Xiaozi by 12.5% in Hunan provincial peanut cultivar regional trial. 2） The oleic acid to linoleic acid ratio （O/L） amounts to 1.36, higher than the exporting peanut breeding target （1.30） made by national science and technology planning project, means long shelf life. It has good commercial quality as well. 3） Early maturation, strong seed dormancy, strong synthetical resistance, i.e. high acid soil resistance, bear to barren land, high resistance to leaf spot disease, middle resistance to rust disease, Leptosphaerulira crussiasa （Sechet） Jackson ＆ Bell, light Corticium rolfsii Saccardo and Rhi-zoctonia spp infection. It was registered and released by Crops Variety Approval Committee of Hunan Province in April 2009.