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近年来,国外育出了一些亩产超过千斤的高产品种,个别品种亩产达到1800斤。美国华盛顿大学将日本的“农林10号”与“布雷伐”(Brevor)杂交,育成了高产品种“格涅斯”(Caines)。这是美国推广的第一个矮秆商品用小麦品种。1962年最高产量为每亩1110.7斤,1964年为1212斤,1965年为1492斤,1966年最高达1875斤。1967年,这个品种巳推广了1205万亩,占大西洋沿岸各洲冬小麦播种面积的五分之二。此外,1965年还以
In recent years, some high-yielding varieties have been bred in foreign countries with more than 1000 kilograms of output, and the output of some varieties has reached 1,800 kilos. The University of Washington bred Japan’s “Agriculture and Forestry 10” and “Brevor” to bred high-yielding Caines. This is the first dwarf commodity wheat variety promoted in the United States. The highest yield in 1962 was 1110.7 kg per mu, 1212 kg in 1964, 1492 kg in 1965 and 1875 kg in 1966. In 1967, this species had been popularized by 12.05 million mu, accounting for two-fifths of the area planted with winter wheat on all continents of the Atlantic. In addition, 1965 also