文献类型：期刊文献

中文题名：红锥优树二代家系抗逆性苗期选择研究

英文题名：Seedling Selection of Stress Resistance in the 2^(nd) Superior Families of Castanopsis hystrix

作者：申文辉[1] 谭长强[1] 劳庆祥[2] 郝海坤[1] 曹艳云[1] 郑威[1] 黄志玲[1]

第一作者：申文辉

机构：[1]广西壮族自治区林业科学研究院;[2]中国林业科学研究院热带林业实验中心

年份：2019

卷号：39

期号：2

起止页码：11-17

中文期刊名：西南林业大学学报：自然科学

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：广西科技攻关计划项目(桂科攻1598006-3-8)资助;广西林业科技项目(桂林科研[2015]1号)资助;中央财政林业科技推广示范项目[2015]TG17号资助

语种：中文

中文关键词：红锥;家系;苗期;变异;选择;抗性生理

外文关键词：Castanopsis hystrix;family;seedling stage;variation;select;resistance physiological

分类号：S72

摘要：通过对29个红锥优树二代家系苗高、地径及抗性生理指标进行测定,运用隶属函数法对抗逆性优良家系进行筛选和评价。结果表明:各指标29个家系间均存在较大差异。苗高为36.5～74.8 cm,地径为5.03～8.58 mm,可溶性糖含量为3.37%～5.84%,淀粉含量为2.01%～4.09%,可溶性蛋白含量为20.4～38.1 mg/g,脯氨酸含量为2.66～5.04μg/g,丙二醛含量为15.6～87.5 nmol/g,过氧化物酶含量为12.3～88.0μ/(g·min),超氧化物歧化酶含量为53.2～82.9 U/g。各抗逆性指标各红锥家系间均存在显著差异。采用多指标的综合评价方法筛选出10个家系为抗逆性优良家系,同时结合苗高及地径生长指标,进一步筛选出P_3、B_2、A_7、B_5家系的速生抗逆性最强。
Through the determination of seedling height, ground diameter and resistance physiological indexes of the 2 nd generation of 29 Castanopsis hystrix clones, the subordinate function method was used to screen and evaluate the superior family. Results show that there are great differences of all index among the 29 families.The seedling height varies from 36.5 to 74.8 cm, the ground diameter varies from 5.03 to 8.58 mm, the soluble sugar content varies from 3.37% to 5.84%, the starch content varies from 2.01% to 4.09%, the soluble protein content varies from 20.4 to 38.1 mg/g, the proline content varies from 2.66 to 5.04 μg/g, the MDA content varies from 15.6 to 87.5 nmol/g, the POD activity varies from 12.3 to 88.0 μ/(g·min) and the SOD activity varies from 53.2 to 82.9 U/g.All stress resistant indices have significant difference among all C. hystrix families. Using a multi-index comprehensive evaluation method to screen out 10 families as excellent families with stress resistance. At the same time,combined with the height of seedling height and the growth index of ground diameter, the fast-growing resistance of P3, B2, A7 and B5 families are further selected.