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经过7 a种子园的建设,在广东省电白县建成了5.41 hm2南洋楹1代无性系种子园,通过对南洋楹优树选择、嫁接、建园等无性系种子园营建关键技术的总结,分析了建园效果。结果表明,建园的87个优树无性系,植株平均高2.90 m,平均嫁接口直径6.83 cm,平均冠幅3.97 m,冠幅/嫁接株高为1.68,树体矮化效果明显,树冠呈伞形;园中50.56%植株进入开花结实期,缩短了南洋楹初花期年限,有助于种子园提早结实。
After 7 years of construction of the seed orchard, a 5.41 hm2 1st generation clonal seed orchard of Nanyang Rice was built in Dianbai County, Guangdong Province. Through summarizing the key technologies of clonal seed orchard construction such as the selection of excellent trees, grafting, Analysis of the construction of the park effect. The results showed that the average height of grafted plants was 3.97 m and the height of crown / grafted plant was 1.68. The tree dwarfing effect was obvious and the crown was Umbrella; 50.56% of the plants in the garden into the flowering and fruiting period, shorten the first flowering stage of the Nanyang population, contribute to the early seed orchard strong.