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一、墨西哥系统小麦的来由早在1943年,勃劳格博士在墨西哥农牧部特别研究厅时,就开展了他的研究工作。当时,墨西哥每年小麦的栽培面积在50万公顷左右,平均每公顷产量不到0.75吨(折亩产100斤),进口小麦27.5万吨,占国内销量的50％。为了小麦自给,在改进栽培方法及施肥轮作技术的同时,还着手开展选育耐病新品种的工作。他们的育种主要途径是:从原有品种及引入品种中进行系统选育和杂交育种。育种目标
First, the origins of the Mexican system of wheat As early as 1943, Dr. Burgess at the Ministry of Agriculture and Animal Husbandry in Mexico Special Research Institute, carried out his research work. At that time, the annual area of wheat cultivation in Mexico was about 500,000 hectares with an average yield of less than 0.75 tons per hectare (100 kg mu per mu) and 275,000 tons wheat imports, accounting for 50% of domestic sales. For the sake of wheat self-sufficiency, while improving cultivation methods and fertilization rotation techniques, we also started to carry out the work of breeding new disease-resistant varieties. Their main ways of breeding are: systematic breeding and crossbreeding from the original varieties and introduced varieties. Breeding goals