摘要
通过半叶法,测定了小黑杨、黑林1号杨、拟青杨×山海关杨、中黑防1号杨、银中杨等5个杨树优良品种的光合速率、净生产力,结果表明:几个品种光合净生产力差异明显,生长量最优的品种为拟青杨×山海关杨。
By using semi-leaf methed were determined photosynthestic rate and net productivity of Populus simonii×nigra,P.deltoides×cathayana,P.pseudo-cathayana×deltoides Bartr cv.'Shanhaiguan'P.deltoides×P.cathayana and P.alba×berolinensis.Results showed that differences in photosynthetic net productivity among the varieties were significant,and the most superior variety was P.pseudo-cathayana×deltoides Bartr cv.'Shanhaiguan'.
出处
《防护林科技》
2004年第2期11-12,共2页
Protection Forest Science and Technology
关键词
杨树
品种
光舍速率
叶面积
干物质
光舍净生产力
生长量
heredity
photosynthetic rate
leaf area
dry matter
photosynthesic net productivity
