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一、调查目的和方法油桐是我国木本工艺油料树种之一。在我省分布广泛并有较长的栽培历史,年产桐子近二千万斤,但生产水平很低。比之其它省区差距很大。遵照伟大领袖毛主席“有了优良品种,即不增加劳动力、肥料,可获得较多的收成”的教导,对我省现在栽培的油桐品种进行调查了解,选择优良品种,进行培育推广,以提高产量,适应不断增长的社会主义建设的需要。一九七一年和一九七二年间,分别对我省油桐生产区的昭通、文山、保山、大
First, the purpose and method of investigation Tung tree is one of the woody oilseed species in China. In our province is widely distributed and has a long history of cultivation, with an annual output of nearly 20 million jin Tong jin, but the production level is very low. Compared with other provinces a great gap. Following the guidance of Chairman Mao, the great leader, “With excellent varieties, that is, without increasing labor force and fertilizers, we will get more harvests”. We will investigate and understand the varieties of tung oil cultivated now in our province, select and cultivate and promote Increase output and meet the needs of the growing socialist construction. From 1971 to 1972, respectively, Zhaotong, Wenshan, Baoshan, Dabaoshan