CTK5406对Ⅰ-69杨光合作用和生长的影响  

Effect of Cytokinin 5406 on Photosynthesis and on the Growth of Poplars

作　　者：焦顺兴[1] 王骏[1] 王沙生 

机构地区：[1]北京林业大学森林生物实验中心

出　　处：《北京林业大学学报》1992年第1期70-76,共7页Journal of Beijing Forestry University

摘　　要：试验以I-69杨Populus deltoides Bartr.cv.“lux”(I-69-55)为材料,研究了植物细胞分裂素制剂(CTK5406)对I-69杨光合作用和生长的影响,苗木分别培养于人工气侯宝和自然光下,结果表明,CTK5408对I-69杨的光合作用和生长具有明显作用。其中以施用量1g/1.5L(水培)和3g/10L(沙培)促进效果最好,使净光合速率提高16％,使生物量积累提高22％～28％。实际生产中由于田间多种因素的影响,施用量可取高限3g/株,直接埋入土中或与肥料一起施用。Experiments were carried out on Populus deltoides Bartr. cv. 'lux' (I-69-55) to study the effect of Cytokinin 5406 (CTK 5406) on photosynthesis and on the growth of poplars. Cuttings were cultured in plant growth chambers and in open fields. Results showed that the CTK 5406 significantly stimulated the net photosynthetic rate and the biomass accumulation of 1-69 poplars. Optimum doses of CTK5406 were 1g/1.5L in hydroponic cultures or 3g/10L in sand cultures. By comparison with the control, the NPR increased by 16% and the biomass increased by 22%-28%.

关 键 词：细胞分裂素 杨树 光合作用 生长 

分 类 号：S792.110.1[农业科学—林木遗传育种]