[1]张 锁,王耀军,杨文涛,等.三个杨树无性系扦插苗年生长规律及抗病性比较[J].陕西林业科技,2018,(03):11-14.
 ZHANG Suo,WANG Yao-jun,YANG Wen-tao,et al.Comparison of the Growth and Disease Resistance of Seedlings Produced through Cutting of with Three White Poplar Clones[J].,2018,(03):11-14.
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三个杨树无性系扦插苗年生长规律及抗病性比较()
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《陕西林业科技》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年03期
页码:
11-14
栏目:
试验与调查研究
出版日期:
2018-06-25

文章信息/Info

Title:
Comparison of the Growth and Disease Resistance of Seedlings Produced through Cutting of with Three White Poplar Clones
文章编号:
1001-2117(2018)03-0011-04
作者:
张 锁王耀军杨文涛温铖鹏韩国伟
吴起县种苗工作站,陕西 吴起 717600
Author(s):
ZHANG Suo WANG Yao-jun YANG Wen-tao WEN Yue-peng HAN Guo-wei
Wuqi Seedling and Seed Station, Wuqi, Shaanxi 717600
关键词:
杨树 扦插苗 高度 生长规律 抗病性
Keywords:
Poplar seedlings from cutting height growth regularity disease resistance
分类号:
S792.11
文献标志码:
A
摘要:
在陕西吴起县引种研究了秦白杨5号、新疆杨3号、河北杨5号等3个杨树无性系扦插苗高年生长动态并比较抗病性,结果表明:3个杨树无性系扦插苗高生长规律与“S”型生长曲线一致,年生长规律可用Logistic方程表达,相关系数值0.98以上。扦插苗年生长分为:苗木生长前期、苗木速生期和苗木生长后期,并且3个时期在时间长短以及高生长量上有很大差别。秦白杨无性系苗的速生期时间为40 d,日平均生长量达1.374 cm,累积生长量达到54.97 cm,占到整个生长的57.50%,不到1/4的时间内完成全年一半以上的生长量。3个杨树无性系对黑斑病和叶枯病的抗性表现出差异,秦白杨的黑斑病发病率小于新疆杨和河北杨,感病指数介于新疆杨和河北杨之间; 秦白杨叶枯病感病指数最低,秦白杨对黑斑病和叶枯病有很好的抗性。3个杨树无性系叶部病害抗性综合评价结果为:河北杨>秦白杨>新疆杨。秦白杨高生长和抗病性都表现优良,适宜在吴起县栽植。
Abstract:
Seedlings from cutting of clones of three poplar cultivars——Qinbaiyang, Poplar bolleana and Populus hopeiensis, were compared in terms of their growth and disease resistance.The result showed that three clones of poplar performed "S"pattern in height growth which could be expressed by Logistic formula with correlation above 0.98.Seedling growth experienced three stages: pre-growth, fast growth and post growth, which were significantly different in time length and height generated.Qinbaiyang had fast growth about 40d, with daily average growth about 1.374cm and cumulative growth about 54.97cm, accounting 57.50% of the yearly total growth of height just in one fourth of time.Three poplar clones performed differently in resistance to black spot and wilt diseases.Qinbaiyang had lower infection rate in black spot than Poplar bolleana and Populus hopeiensis, and its index of decease infection fell in between.Qinbaiyang had lowest infection index.The comprehensive assessment on the three poplar clones in resistance to disease showed that Populus hopeiensis >Qinbaiyang> Poplar bolleana.Qinbaiyang performed well in Wuqi county.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-02-12
作者简介:张 锁(1984-),男,陕西延安人,硕士,林业工程师,主要研究方向:林木育种。
更新日期/Last Update: 2018-06-25