在丘陵梯田同一块田里,里坎与外坎的三麦往往生长很不一致,产量相差很大。里坎麦产量低主要表现为:(1)出苗差,出穗率低,有效穗少。一般里坎麦子的有效穗数仅为外坎的80%左右。(2)植株矮小,茎秆细弱。据调查,里坎麦子的株高和茎粗,大抵只有外坎的70%左右。(3)穗小粒少,千粒重低。里坎与外坎相比,穗头将近小一半,千粒重一 In the same fields in the hilly terraces, the three wheat cultivars in Likan and Hulan often grow very inconsistent, with very different yields. The low yield of Rakanmai mainly as follows: (1) emergence of poor, spike rate is low, effective spike less. In general, the effective spike in wheat is only about 80% of the ridge. (2) short plants, thin stems. According to the survey, Likan wheat plant height and stem diameter, probably only about 70% of the ridge. (3) less spikelets, one thousand grain weight low. Likan compared with the ridge, the head will be nearly half a thousand grain weight one