广东桑树多倍体及其育种研究的进展  被引量:10

GUANGDONG POLYPLOIDY MULBERRIES AND THEIR BKEEDING PROGRESS

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作  者:郭展雄[1] 肖更生[1] 苏大道[1] 

机构地区:[1]广东省农业科学院蚕业研究所

出  处:《蚕业科学》1994年第2期67-71,共5页ACTA SERICOLOGICA SINICA

基  金:广东省科委科学基金;农科院院长科技发展基金;广东省丝绸公司资助

摘  要:普查了五个桑种360份材料,获得三倍体桑18份,四倍体桑1份,六倍体桑9份;建立了应用秋水仙素处理广东桑杂种实生苗(有性系)诱导四倍体的技术程序,首次育成广东桑四倍体102份;研究其性状,选出具有高产、优质、种子结实性高的四倍体材料一批;并利用亲本,初步育成具有高产、优质三倍体桑杂交组合7个,提供生产鉴定示范。After 360 materials from 5 species of Guangdong mulberries(Morus atropurpureaRoxb ) being investigated,18 triploids,1 tetraploid and 9 diploids were obtained. Thetechnical procedures for inducing tetraploids by using colchicine treatment on the hybridseedlings of Morus atropurpurea Roxb were established. For the first time, 102 materi-als of tetraploids ofM, atropurpurea Roxb were obtained. By studying their main char-acters, a group of tetraploidy materials with high yield, good quality and high seedy a-bility were selected.Then using these materials as parents, 7 cross combinations oftriploids have been bred and have been provided for the assessment of demonstrativeproductio

关 键 词:广东桑 多倍体 杂交组合 育种 桑树 

分 类 号:S888.31[农业科学—特种经济动物饲养]

 

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