摘要
The seed vigor and phenological characteristics of 14 Nicotiana L.species were investigated.The results showed that significant differences among these species for germination rate(GR),germination viability(GV) and germination index(GI) were observed.The GR and GV of seeds from N.sylvestris showed a significant high level compared with other species.Phenological characters of the 14 species varied widely from budding stage,flower budding stage and blooming stage.The flower budding stage and blooming stage of N.clevelandii occurred earlier by 115 d and 110 d separately than that of N.paniculata.
The seed vigor and phenological characteristics of 14 Nicotiana L. species were investigated. The results showed that significant differences among these species for germination rate （GR） , germination viability （ GV ） and germination index（GI） were observed. The GR and GV of seeds from N. sylvestris showed a significant high level compared with other species. Phenological characters of the 14 species varied widely from budding stage, flower budding stage and blooming stage. The flower budding stage and blooming stage of N. clevelandii occurred earlier by 115 d and 110 d separately than that of N. paniculata.
出处
《植物资源与环境学报》
CAS
CSCD
2006年第3期77-78,共2页
Journal of Plant Resources and Environment
基金
云南省烟草公司科技资助项目(05-05及04A20)
关键词
野生烟草
种子活力
物候特点
Nicotiana L.
seed vigor
phenological characteristics
