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关于咸阳市农科所育成的超大穗小麦84加(79)—3—1(简称超大穗小麦,下同)在新疆能否推广问题,根据我们在我院农学系试验站通过去冬今春的七亩秋播地试验和小面积的临冬“包蛋”播种以及作春麦种植三种方式的引种试验,结合我们在石河子、博乐、奇台等地区初步观察,意见如下:一、越冬期间容易受冻死亡 超大穗小麦为弱冬性品种,在石河子地区,冬前生长发育快,容易拔节,幼穗开始分化,分化发育阶段结束,抗寒能力下降,10月26—27日遇有低温霜冻,叶尖普遍受冻死亡,石河子地区去年冬季属暖冬年份,降雪多,积雪厚,气温不太低,象这样气候为多年罕见,尽管如此,元月初在田间挖苗调查时.超大穗小麦受冻死亡率88.6%,第二年春季麦苗返青后,田间每亩保苗仅有2.07万株(补播了少量油菜),而对照品种奎冬四号则全苗越冬.
About Xianyang City, agricultural bred super-large spike 84 plus (79) -3-1 (referred to as super large spike wheat, the same below) in Xinjiang can promote the issue, according to our laboratory in agronomy through winter to spring Seven acres of autumn sowing experiments and a small area of winter Pro “egg” sowing and spring wheat planting three kinds of introduction test, combined with our preliminary observations in Shihezi, Bole, Qitai, the views are as follows: First, during the winter Easily died of frost death Super-large spike wheat is a weaker winter variety. In the Shihezi region, growth and development are quick before winter and are easy to join. Young spikes begin to differentiate, and the differentiation and development stage ends, and their cold-resistant ability declines. On October 26-27, a low temperature Frost, the tip of the common cold death, the Shihezi last winter is a warm winter year, snowfall, thick snow, the temperature is not too low, so the climate is rare for many years, however, in early January when digging in the field survey. The mortality rate of wheat frost was 88.6%. After the wheat seedlings returned to green in the second year, only 20,700 seedlings per mu were reared in the field (a small amount of rape was replanted), while the control variety Kui Dong No.4 was overwintering.