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中文摘要：
星星草Puccinella tenuiflora为多年生丛生型禾草。在松嫩平原生长季末期，碱化草甸星星草种群的冬眠构件是由冬眠芽和冬眠苗组成的，割草场和放牧场星星草种群均以冬眠苗占优势地位。其中，割草场星星草种群的冬眠苗为5254．4±2568．1个／m^2，占85．6％，冬眠芽为1011．2±891．2个／m^2，占14．4％；放牧场的冬眠苗为2608．0±l160．2个／m^2，占73．6%，冬眠芽为979．2±804．8个／m^2，占26．4％。割草有利于星星草种群和无性系冬眠构件的形成，尤其有利于冬眠苗的形成。割草场和放牧场星星草无性系冬眠构件的总量及冬眠苗的数量均随着丛径的增加呈直线函数增加。
英文摘要：
Puccinellia tenuiflora is a perennial grass. The dormancy modules of Puccinellia tenuiflo ra population consisted of dormancy buds and dormancy seedlings in alkaline meadow in the Songnen Plain in the end of the growth season. Dormancy seedlings were dominant in the pasture for cutting and grazing. The number of dormancy seedlings and dormancy buds of Puccinellia tenuiflora population was respectively 5 254.4±2 568.1 /m^2, 85.60/00 and 1 011.2±891.2 /m^2, 14.4% in the pasture for cutting, and 2 608.0±1 160.2 /m^2, 73.6% and 979.2±804.8 /m^2, 26.4% in the pasture for grazing, respectively. The formation of dormancy modules, especially dormancy seedlings of Puccinellia tenuiflora populations and clones could be promoted by cutting use. There were all linear functions that the number of the total dormancy modules and dormancy seedlings of Puccinellia tenuiflora clone increased with the increasing of the size of diameters of bunches in pasture for cutting and grazing.
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