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1975～1980年,我们连续6年,在黑龙江省九三农管局科研所进行夏季繁育,对大麦夏繁材料的选择,特征特性的表现,异地繁殖方法有了一些认识,现简报如下: (一)异地繁育的气候特点和材料选择九三农管局科研所(下称双山)位于北纬48°52′,东经125°17′。气候特点是气温上升快,昼夜温差大,雨量少,日照足,有利于大麦生长发育,积累养分,是偏春性大麦良好的夏繁地区之一。如何根据这一气候特点正确选取夏繁材料,是达到增代和缩短育种年限的关键。上海地区5月上旬收获的种籽,下旬于双山播种。幼苗习性属半冬性的二棱
From 1975 to 1980, we conducted summer breeding in the scientific research institute of Jiu San Rural Management Bureau in Heilongjiang Province for 6 years in succession. We have got some knowledge about the selection of barley material, the characteristic characteristics and the propagation methods in different places. The briefing is as follows: ( A) Climatic Characteristics and Material Selection of Off-site Breeding Nine provinces and three administrative bureau (hereinafter referred to as Shuangshan) are located at 48 ° 52’N and 125 ° 17’E. Climate is characterized by rapid temperature rise, large temperature difference between day and night, less rainfall, sufficient sunshine, is conducive to barley growth and development, accumulation of nutrients, spring barley is a good Xia Fan area. How to correctly select the summer flowering materials according to the characteristics of this climate is the key to reaching the new generation and shortening the breeding period. Seeds harvested in Shanghai in early May will be planted in Shuangshan in late. Seedling habit is two semi-fringe