论文部分内容阅读
番薯是广东省第二大粮食作物。其中春薯约占全省番薯面积和总产量的1/6。目前,对春薯的研究工作比较薄弱。为了提高番薯育种效率,探讨春薯育种和栽培要点,研究春薯品种主要性状相关关系,具有重要意义。本试验以42个番薯品种为材料,就12个主要性状的相关关系进行研究和分析,以期为春薯育种和栽培工作提供理论上的依据。一、材料和方法本试验在广州石牌华南农学院种子园进行。42个参试品种多数是广东省育成品种。1981年4月13日插植,每品种种10苗,薯苗全部采用顶端第一段苗,高畦斜插,7月22日收获。收获时每品种调查7株,共调查12个性状。其中,单株薯重、大薯数(薯重超过半斤的个
Sweet potato is the second largest grain crop in Guangdong Province. Among them, the spring potato accounts for about one sixth of the province’s total sweet potato area and total output. At present, the research on the sweet potato is relatively weak. In order to improve the efficiency of sweet potato breeding, to discuss the main points of breeding and cultivation of sweet potato, and to study the relationship between the main characters of sweet potato varieties, it is of great significance. In this experiment, 42 sweet potato varieties were used as materials to study and analyze the correlation of 12 major traits, in order to provide a theoretical basis for the breeding and cultivation of spring potato. First, materials and methods The test was conducted at the Seed Garden in South China Agricultural College, Shipai, Guangzhou. The majority of 42 tested varieties were bred varieties of Guangdong Province. April 13, 1981 planting, each species of 10 seedlings, potato seedlings all use the top of the first paragraph of seedlings, Gao Xie Xie inserted, July 22 harvest. Seven varieties were harvested at the time of harvest, and 12 traits were investigated. Among them, the individual potato weight, large potato number (potato weight more than half a catty