论文部分内容阅读
可拉(Cola nitida)属梧桐科,是一种热带和亚热带饮料作物。由实生苗培育的可拉树,需要7—9年才开始开花结果,15—20年才达盛产期。尼日利亚可可研究所的研究表明,无性繁殖的可拉树,定植后3—4年便开始大量结果,本文报道这项研究的方法和结果。一、材料和方法从尼日利亚西方省的艾吉格(A组)、穆尔可拉园(K组)和甘巴里试验站(L组)选择了高产可拉树,1962年开始进行这些高产树的插条生根试验。为了便于比较起见,用指数
Cola nitida belongs to the family Indus, a tropical and subtropical beverage crop. Kola nurseries grown from seedlings require 7-9 years to begin their flowering and 15-20 years to reach their peak. Studies at the Nigeria Cocoa Institute have shown that asexually propagated kola produces large numbers of outcomes 3-4 years after colonization, and this article reports on the methods and results of this study. I. MATERIALS AND METHODS High-yield kola trees were selected from Aegis (Group A), Murcokra Park (Group K) and Gambari Experimental Station (Group L) in Western Nigeria, and high-yielding trees were selected in 1962 Cuttings rooting test. For the sake of comparison, use the index