摘要
以长筒石蒜为试材，研究了不同月份切根处理以及种植前切根与留根对次月的须根和叶期叶片的数量、长度及盛叶期叶生长量和净光合速率的影响，以期探讨移植过程中切根季节与方法对长筒石蒜生长的影响。结果表明：10月中旬至翌年4月中旬切根，次月没有或有极少量须根，5～9月切根，次月须根生长良好；切根季节对随后的叶生物影响较大，特别是叶长度和净光合速率。10月至翌年3月移植，叶生物量相对减少2／3～4／5，净光合速率受很大影响，净光合速率相对减少9／10，随之第2个叶生长季，叶片数量比上一年减少，但叶长和净光合速率已恢复正常。无叶期切根与留根种植对叶生长量影响无显著性差异，但鳞茎起掘后搁置超过3d，建议以切根种植为宜。
Taking Lycoris longituba as test material,the influence of root-cutting season and remaining or removing roots on the number of root,and leaf in the stage,leaf length and leaf growth in full leaf stage,net photosynthetic rate （Pn） were studied, the influence of root-cutting season and methed on growth of Lycoris longttuba were discussed. The results showed that there was no or little root in next month after cutting roots from Oct. to Apr. next year, but roots growing better in cutting from May to Sep.. Leaf growth was greatly effected by cutting time,especially on leaf length and Pn in the following season. Leaf biomass was reduced by 2/3--4/5, compared to contrast and Pn by 9/10. In the second growth season after transplanting from Oct. to Apr. ,leaf number was also reduced but leaf length and Pn were recovered. There was no significant difference in leaf growth within planting methods of remaining or removing roots, however, if the bulb had to be suspended over 3 days to re-plant after digging out,cutting roots was suggested.
出处
《北方园艺》
CAS
北大核心
2013年第22期92-95,共4页
Northern Horticulture
基金
杭州西湖风景名胜区管委会资助项目(2010-003)
关键词
长筒石蒜
移栽
季节
切根
生长量
净光合速率
Lycoris longituiba
transplantation
season
root-cutting
biomass
net photosynthetic rate
