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麻竹无性系选育的研究

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本文报道了对麻竹实生苗生长状况和实生苗无性系选育方法.通过人工授粉获得麻竹种子,用圃地培植及无菌播种组培两种方法培育麻竹实生苗无性系,结果表明:(1)收集优良开花母株,利用人工授粉方法取得麻竹种子,可为优良无性系的选育培育较为优良的实生苗群体,有利于提高选育的有效性;(2)圃地培植的实生苗无性系在16个月龄和28个月龄时的生长显著相关,16个月龄时进行较大强度的无性系筛选,可靠性较大;(3)提早分株种植能加快实生苗无性系的总体生长与繁殖,利于加快无性系选育的进程;(4)无菌播种组培条件下,组培中无性系的生长特性与其移栽圃地后的生长特性十分相关,各无性系固有的生长特性在培养3~6个月期间逐渐表现,可在此时进行离体早期选择.
A Study on the Selection of Dendrocalamus latiflorus Seedling Clone
This paper reports researches on selection and breeding of Dendrocalamus latiflorus seedling clones and their growth situation. The seeds obtained through artificial pollination are selected to grow into seedling clones by means of nursery cultivation and culturing in vitro. Results show that: (1) The seeds ofD. latiflorus obtained from the elite mother plants through artifi~ cial pollination are good for the seedling clone selection. The fine seedling population coming from these seeds will facilitate the selection of fine clones, and promote the efficiency of selection.(2) The seedling clones growing in the nursery show significant correlation with the growth situation when they are 16 months and 28 months old, which indicates that a depth clone selection can be carried out when seedlings are 16 months old. (3) To propagate seedlings through dividing tillers would accelerate the growth and multiplication of the seedling clones as a whole. This can help step up the progress of clone selection. (4) The growth properties of seedling clones in vitro strongly relate to those growing in nursery. The inherent growth characteristics of clones gradually appear when they are cultured in vitro for 3~6 months, at which time early selection may be implemented.

Dendrocalarmus latiflorusseedlingclone selectionclone breeding

王裕霞、Zhang Guangchu、Fu Maoyi

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Guangdong Forestry Research Institute, Guangzhou 510520

Subtropical Forestry Research Institute, CAF, Zhejiang 311400

麻竹 实生苗 无性系选择 无性系育种

2005

世界竹藤通讯
中国林业科学研究院 林业科技信息研究所

世界竹藤通讯

影响因子:0.338
ISSN:1672-0431
年,卷(期):2005.3(4)
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