雷林1号桉扦插成苗率与气象因子的关系  

Relationships Between Rooting Rates of Eucalyptus Cuttings and Meteorological Factors

作　　者：谭绍满[1] 何昭珩[1] 杨国清 肖文光 

机构地区：[1]广州华南农业大学林学院,广州510642 [2]湛江雷州林业局,湛江524348

出　　处：《中南林学院学报》1997年第3期68-70,共3页Journal of Central South Forestry University

基　　金：广东省林业厅资助

摘　　要：采用多元统计分析方法对雷林1号桉杆插成苗率与气象因子的关系进行了初步研究．结果表明：不同月份的打插成苗率是不同的，5～8月较低．1～4月和9～12月均较高，尤以2月、3月和11月更高，分别为88．8％，90．1％和97．1％；成苗率与月均气温、月相对湿度、日最大降雨量、全月降雨天数之间存在显著的相关关系；这4个因子对成苗率影响程度由大到小的排序为日最大降雨量＞全月降雨天数＞月相对湿度＞月均气温．Relationships between the rooting rates of Leding 1 Eucalyptus Cuttings and the meteorological factors have been studied by employing the method of multivariate statistical analysis. The rooting rates in different months are different. In May,June,July and August,the rooting rates are low but in the other months,the rooting rates are high. In February, March and November, the rooting rates are especially high j they are 88. 8%,90. 1 % and 97. 1 % respectively. There are obvious relationships between rooting rates and month mean temperature,rooting rates and month relative humidity,rooting rates and day maximum precipitation,rooting rates and number of raining days in a month. The queuingorder of the 4 meteorological factors affecting the rooting rates from strong to weak is:day maximum precipitation>number of raining days in a month> month relative humidity >month mean temperature.

关 键 词：桉树 雷林1号桉 扦插 成苗率 气象因子 

分 类 号：S792.390.5[农业科学—林木遗传育种]