为了追求小麦高产,不少人对大穗小麦颇感兴趣,不惜高价引进,然而引进“巨穗麦”、“铁杆小麦”、“咸阳大穗麦”等品种后便不尽人意,有的抗寒性差,不能安全越冬;有的生长期长,成熟晚;有的籽粒秕瘦,产量不高;有的杆高不抗倒;有的熟相不好、出面少,而推广不 In pursuit of high-yielding wheat, quite a few people are quite interested in big-spike wheat and are willing to introduce them at high prices. However, the introduction of such varieties as “giant spike wheat”, “iron wheat” and “Xianyang big spike wheat” Poor cold, can not be safe and wintering; some growth period long, mature late; some of the grain lean, yield is not high; some bar does not fight down; some cooked phase is not good, come out less, and promotion is not