茖葱种子发芽特征及植株生长动态  

Germination Characteristics and Growth Dynamics of Allium victorialis

作　　者：张忠宝[1] 

机构地区：[1]吉林农业科技学院,吉林市132101

出　　处：《东北林业大学学报》2012年第10期22-23,162,共3页Journal of Northeast Forestry University

基　　金：吉林省教育厅项目(2008389)

摘　　要：调查了圆叶茖葱从种子到出苗及不同株龄植株田间生长的全过程。结果表明:种子萌发为子叶留土型,秋播种子翌年夏季长出胚根,但胚芽不长出地面,第三年早春出苗。物候期可划分为7个时期。植株前期生长快,出苗约60 d即结束营养生长。1～3年生植株体较小,多在4年生抽苔开花结实,5年生产生分蘖,5～6年生每株分蘖2～3个。A research was carried out in the whole growing process of round-leaf AUium victorialis from seed to germination as well as seedlings of different ages in order to study the growing process of A. victorialis. Result shows that the seed germi- nation of A. victorialis is hypogeal. The radicles of seeds germinate in the next summer after sowing in fall, yet they remain below ground, and the seedlings cannot emerge until early spring in the third year. The phenological period ofA. victorialis can be divided into 7 phases. The seedlings grow fast in the early period and stop vegetative growth 60 days after their emer- gence. Annual, biennial and triennial plants have smaller sizes, and most of them bloom and fruit in the fourth year. Five- year-old plants tiller, and five- to six-year-old plants have two to three branches.

关 键 词：茖葱 种子 发芽 物候期 生长动态 

分 类 号：Q331[生物学—遗传学]