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沙打旺(Astragalus huangheensis Fu.etliu.sp.)原产我国黄河故道地区,生育期170～180天。在无霜期短的北方不能正常结实,产籽量很低,甚至不结籽,妨碍种植面积的扩大。为此,我们开展了早熟品种选育研究。1979年决选出两个早熟品系。经过1980～1981年多点区域试种,表现良好。1982年经农牧渔业部畜牧局同意,开展了区域(中间)试验。现初报如下:一、试材来源与试验地区条件试材为辐射诱变获得的两个早熟品系(暂称早熟Ⅱ号和早熟Ⅳ号)以及一份辐射诱变前的原始材料(辽宁生产上使用的品种),以后者作对照。区(中)试分布于北方12个省区,北到黑龙江省的富拉尔基,西至新疆石河子。地势条
Astragalus huangheensis Fu.etliu.sp. Originated in the old course of the Yellow River in China with a growth period of 170-180 days. In the northern frost-free period can not be normal and strong, low-yielding seeds, or even seed, hinder the expansion of planting area. To this end, we conducted a precocious variety breeding research. In 1979, two early maturing lines were selected. After 1980-1981, more regional trials were conducted, showing good performance. In 1982, with the agreement of the Bureau of Animal Husbandry and Fisheries of the Ministry of Agriculture, Animal Husbandry and Fisheries, a regional (intermediate) test was carried out. The first report is as follows: First, the source of the test material and the test conditions of the test material for the two early maturing strains obtained by radiation mutagenesis (tentatively known as precocious Ⅱ and precocious Ⅳ) and a raw material before radiation mutagenesis (Liaoning production On the use of varieties), the latter as a control. The district (middle) trial is located in 12 northern provinces and autonomous regions, north to Fulaerji in Heilongjiang Province and west to Shihezi in Xinjiang. Terrain