摘要
以烤烟品种K326和G80中部叶为材料,分别在打顶前、欠熟、适熟、过熟阶段取样,用丙酮浸提法测定叶片主脉叶绿素含量;用石蜡切片法制片观察和测定叶片主脉基本组织细胞中的叶绿体数量,并动态记录茎叶夹角的变化.结果表明,叶片主脉叶绿素含量和叶绿体数量随着成熟度的提高而降低,叶绿体解体加快.K326和G80在茎叶夹角为50°左右时,处于适熟阶段.
The middle site leaves of two kinds of flue-cured tobacco（K326 and G80） are studied when the leaves are no-, green, riped or overriped respectively. The amount of chloroplast was studied by olefin slice, and the content of chlorophyll of main nerve is studied by ketone, while the angle of stem to leaf is noted. It shows that the content of chlorophyll and the number of chloroplast debases with the maturing. K326 and G80 are riped when the angle of stem to leaf is about 50.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第2期174-176,共3页
Journal of Hunan Agricultural University(Natural Sciences)
基金
国家烟草专卖局项目(11020000101
11020041012)
关键词
烤烟
成熟度
主脉
叶绿体
叶绿素
茎叶夹角
tobacco
maturing
main nerve
chloroplast
chlorophyll
angle of stem to leaf
