龙眼叶片营养与成花的相关性  

Analysis of Correlation of Nutrient of Leaves and Flower Formation in Dimocarpus longan Lour.

作　　者：江健[1] 沈方科[2] 李柳霞[2] 廖曼玲[2] 

机构地区：[1]广西农业职业技术学院,广西南宁530007 [2]广西大学农学院,广西南宁530005

出　　处：《安徽农业科学》2008年第32期14075-14076,共2页Journal of Anhui Agricultural Sciences

基　　金：广西大学谭锦球青年科研基金资助项目(CC160018);广西大学基金项目(CC160004);柳州农工商有限责任公司合作项目(BB160056)

摘　　要：[目的]探索龙眼叶片营养状况与成花的关系。[方法]以石硖龙眼为试材，于1月份采集8个方向末次秋梢倒数第二复叶的第2～3对小叶，测定氮、磷、钾营养含量，计录总梢数和抽花穗总梢数。[结果]龙眼叶片1月份的N、P、K含量分剐为1．17％～1．67％、0．13％-0．18％、0．35％～0．66％，平均值分别为1．31％、0．16％、0．53％；N／P为7．15～11．93，平均为8．14；N／K为1．95～4．71，平均为2．59；均与成花有显著的关系。回归分析表明，当1月份龙眼叶片N、P、K含量及N／P、N／K分别为1．42％、0．15％、0．50％、10．42、3．24时，成花效果最好。[结论]1月份龙眼叶片N,P、K含量及N／P、N／K与成花有显著相关性，龙眼1月份叶片P／K与成花不具有显著相关性．[ Objective ] The study was to explore the relationship between the nutritional status of leaves and flower formation in Dimocarptts longan Lour. [ Method] With Shixia D. longan as tested material, the second and third pair of leaflet on the top second compound leaf in the last autumn shoots in 8 directions was collected in January to detect the content of N, P, K. The total shoot numbers and total flower shoot were recorded. [Result] The content of N, P, K in D. longan leaves was 1.17% - 1.67% , 0.13% -0.18% and 0.35% -0.66% resp. , and their average value was 1.31% , 0.16% and 0.53% resp.. The value of N/P was 7.15 - 11.93 and its average value was 8.14. The value of N/K was 1.95 -4.71 and its average value was 2.59. They all had a positive relationship with flower formation. The regression analysis showed that, when the content of N, P, K and N/P, N/K in D. longan leaves was 1.42% , 0.15%, O. 50% , 10.42, 3.24 resp. , the flower formation of D. longan was best. [ Conclusion] The content of N, P, K and N/P, N/K in D. longan leaves in January was significantly correlated with the flower formation. The P/K of in D. longan leaves in January was not positively correlated with the flower formation.

关 键 词：龙眼 叶片营养 成花 

分 类 号：S667.2[农业科学—果树学]