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江苏省油桐科研协作组在1979—1980年间经过多次良种选择,共初选油桐优株173株,通过复选,于1981年选定了18个优良单株。为了进一步观察优株性状的遗传变异,采用半同胞种子播种造林,进行子代测定。本文是18株油桐优株子代鉴定的初报。 材料与方法 子代测定试验地分别设在溧水县傅家边阴山凹和高淳县种猪场。1980年春在阴山凹直播造林8亩,共有9个优株的半同胞子代,分四次重复,单行小区,每小区4株,错行排列。后又于1982年在高淳种猪场播种造林10亩,包括18个优株的半同胞子代,也分四次重复,单行小区,每小区5株,错行排列。
In the period of 1979 to 1980, the research team of Tongtong, Jiangsu Province, underwent several thoroughbred selections. A total of 173 strains of A. tunga were initially selected. Through the selection, 18 excellent individuals were selected in 1981. In order to further observe the genetic variation of elite traits, semi-sibling seeds were planted for afforestation and offspring determination. This article is the first report of identification of 18 strains of Tung tree. Materials and methods The offspring test sites were located in the breeding farm of Yinchuankou and Gaochun in Fujiahe, Lishui County. In the spring of 1980, a total of 8 acreage afforested forests were planted in Yinshan Mountain. There were 9 half-siblings of this excellent strain, which were divided into four replications. Single-row plots and four plots per plot were arranged in the wrong rows. Later in 1982 in Gaochun pig farms planted 10 acres of afforestation, including 18 excellent strains of half siblings, also divided into four replications, single-family district, 5 per plot, the wrong line.