不同采收年限和月份对大丰95橡胶树产胶量的影响  

Effects of different tapping ages and months on rubber yield of Hevea brasiliensis Dafeng 95

作　　者：吴春太[1] 马征宇 刘汉文 李维国[1] 曾日中[1] 

机构地区：[1]中国热带农业科学院橡胶研究所/国家橡胶树育种中心/农业部橡胶树生物学与遗传资源利用重点实验室,海南儋州571737 [2]海南天然橡胶产业集团阳江分公司,海南琼中572900

出　　处：《中南林业科技大学学报》2015年第3期27-31,共5页Journal of Central South University of Forestry & Technology

基　　金："十二五"国家天然橡胶产业技术体系抗风高产育种岗位专项(CARS-34);973计划课题"橡胶树产排胶调控机制与转基因种质创新"(2012CB723005)

摘　　要：为探讨不同采收年限和月份对大丰95橡胶树产胶量的影响,采用统收统测的方式对13个5-18 a中低割龄的大丰95无性系树位的5-12月份干胶产量进行测定分析。结果表明,不同割龄和不同采割月份的大丰95月株产干胶量和月公顷产干胶量差异均明显,其中,8个采割期中,株产干胶量和公顷产干胶量由高到低的月份均依次为11、7、6、8、9、10、12、5月。13个割龄中,11 a的年株产干胶量最高,达4.90 kg,16 a的年公顷产干胶量最高,达1 807.97 kg,18 a的年株产干胶量和年公顷产干胶量均最低,分别为2.59、373.82 kg,最高值与最低值间差异达极显著水平（P〈0.01）。13个割龄的月公顷产干胶量和年公顷产干胶量与月株产干胶量和年株产干胶量均呈极显著正相关（P〈0.01）,而所有割龄与年株产干胶量和年公顷产干胶量的正相关均不显著。综上可见,大丰95中低割龄橡胶树的干胶产量显著受采收月份影响,而随采收年限变化则不明显。To study the effects of Hevea brasiliensis Dafeng 95 tapping ages and tapping month on dry rubber yields in the trees, the dry rubber yields of 13 clone Dafeng 95 species grown in Nation-owned Dafeng Forest Farm in May - December at young and middle tapping ages（5-18-year-old） were determined and analyzed by taking methods of unified collection and measure. The results show that there were significant differences in monthly dry rubber productions per tree and monthly dry rubber yields per hectare of Dafeng 95 with different tapping ages and months. In eight tapping periods, the monthly dry rubber production per tree and monthly dry rubber yield per hectare in the months ranked from high to low as follows： November, July, June, August, September, October, December and May. Of the 13 tapping ages, the 11-year-old tree＇s dry rubber productions per tree per year was the highest, reached 4.90 kg; the 16-year-old tree＇s dry rubber yields per hectare per year reached the highest, to be 1 807.97 kg; the 18-yearold tree＇s dry rubber productions per tree per year and dry rubber yields per hectare per year were the lowest, 2.59 kg and 373.82 kg respectively. The difference levels between maximum and minimum levels of the two yields both reached significant difference levels（P〈 0.01）. Monthly dry rubber production per tree of the thirteen tapping ages had high significant positive correlation with monthly dry rubber yield per hectare, and dry rubber production per tree per year was very significantly correlated with dry rubber yield per hectare per year, whereas the tapping ages were not significantly positive correlated with dry rubber productions per tree per year and dry rubber yields per hectare per year. The findings suggest that the collection months have significant effects on dry rubber yields in young and middle tapping aged Dafeng 95. The dry rubber yields are not significantly influenced by variation of collection tree-age.

关 键 词：橡胶树 大丰95 割龄 采割月份 株产干胶量 公顷产干胶量 

分 类 号：S794.1[农业科学—林木遗传育种]