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第一部分:柑桔无病良种母本树的培育及母本园的建立一、优良母树的选择及其携带病毒病和类似病毒病病原的脱除 1.优良母本树的选择及采穗: (1)从无黄龙病区或附近无黄龙病的果园中,选择生势旺盛、外表健康、果型端正、果实品质好、高产稳产的壮年树,并进行果实特征测定及果实品质分析。凡选中的母树,均给予登记、编号并挂牌。 (2)一般在“大寒”至“立春”选充实的壮梢采穗。接穗采下即把叶片连同叶柄
Part I: Citrus disease-free elite breeder mother tree and the establishment of the mother garden First, the choice of the eldest mother tree and its virus-carrying disease and the removal of similar virus disease pathogen 1. The selection of the mother tree and ear: (1) From the orchards of non-Huanglong ward or the nearby Huanglongshan, choose the mature tree with strong health, healthy appearance, good fruit quality, high and stable yield, fruit characteristics and fruit quality analysis. Where the selected tree, are given registration, number and listing. (2) Generally in the “big cold” to “beginning of spring” choose full strong shoots ear. Scion harvest that leaves with petiole