|
|||||
|
|
| 毛白杨杂种无性系生长及耗水特性研究 | |
| 引用本文： | 方晓娟,李吉跃,聂立水,沈应柏,张志毅.毛白杨杂种无性系生长及耗水特性研究[J].西北林学院学报,2010,25(5). |
| 作者姓名： | 方晓娟 李吉跃 聂立水 沈应柏 张志毅 |
| 作者单位： | 1. 北京林业大学,林木育种国家工程实验室与林木花卉遗传育种教育部重点实验室,北京,100083;北京林业大学,省部共建森林培育与保护教育部重点实验室,北京,100083 2. 华南农业大学林学院,广东,广州,510642;北京林业大学,省部共建森林培育与保护教育部重点实验室,北京,100083 3. 北京林业大学,水土保持与荒漠化防治教育部重点实验室,北京,100083 4. 北京林业大学,林木育种国家工程实验室与林木花卉遗传育种教育部重点实验室,北京,100083 |
| 基金项目： | "十一五"国家科技支撑计划课题 |
| 摘 要： | 采用BP3400精密天平和加拿大Epson Twain Pro扫描仪等,研究了9个毛白杨杂种无性系苗木(1(2)-0型)的生长及蒸腾耗水特性,并对苗高地径、耗水特性、叶片失水率、比叶重、生物量等进行了比较。结果表明:无性系30、BL5、S86生长较快,苗高分别为110.17、149.301、61.50 cm,地径分别为1.14、1.241、.12 cm,比叶重、生物量较大,10月比叶重分别达103.39、99.44、95.80 g.m-2,生物量分别达66.71、62.965、9.739 g,可作为在水分充足地区营造毛白杨速生丰产林的优良无性系。毛白杨杂种无性系耗水量和耗水速率日变化均呈"单峰"型,峰值均出现在12:00~14:00,无性系S86、83、42白天耗水速率较低,8月耗水速率值分别达198.81、241.44、287.93 g.m-2.h-1,叶片失水率较小,8月离体12 h时的失水率仅为55.74%、48.71%、41.88%,可作为在有限水量下营造毛白杨速生丰产林的优良无性系。 |
| 关 键 词： | 毛白杨 苗高 地径 耗水特性 失水率 比叶重 生物量 |
Investigation on the Growth and Water Consumption Characteristics of the Seedlings of Some Populus tomentosa Hybrid Clones |
|
| FANG Xiao-juan,LI Ji-yue,NIE Li-shui,SHEN Ying-bai,ZHANG Zhi-yi.Investigation on the Growth and Water Consumption Characteristics of the Seedlings of Some Populus tomentosa Hybrid Clones[J].Journal of Northwest Forestry University,2010,25(5). | |
| Authors: | FANG Xiao-juan LI Ji-yue NIE Li-shui SHEN Ying-bai ZHANG Zhi-yi |
| Institution: | FANG Xiao-juan1,2,LI Ji-yue3,NIE Li-shui4,SHEN Ying-bai1,ZHANG Zhi-yi1(1.National Engineering Laboratory for Tree Breeding and Key Laboratory for Genetics and Breeding in Forest Trees and Ornamental Plants,Ministry of Education,Beijing 100083,China,2.Key Laboratory for Silviculture and Conservation,Beijing,100083,3.College of Forestry,South China Agricultural University,Guangzhou,Guangdong 510642,4.Key Laboratory of Soil and Water Conservation and Desertification Combatin... |
| Abstract: | The growth and water consumption characteristics of the seedlings of nine 1(2)-0 type Populus tomentosa clones were studied by BP3400 precision balance and Canadian Epson Twain Pro scanner.Other indices such as height,diameter,water consumption features,rates of leaf water losing,specific leaf weight,biomass etc.were compared.The results showed that: clones 30,BL5,S86 were as superior clones to cultivate P.tomentosa forests under the condition of supply water.They groped rapidly and their heights were 110.1... |
| Keywords: | Populus tomentosa height diameter water consumption characteristic the rate of water losing specific leaf weight biomass |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |