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本文主要在短花针茅分布中心进行研究,同时也在某些群落内进行观察。提出了短花针茅种子是在当年夏秋萌发,中胚轴极短,当年可产生1—2条分蘖枝,翌年已形成幼株丛,具明显针状的外貌。成龄株丛春季分蘖较少,以夏秋分蘖为主,整个分蘖模式为级数递增型。种子根一条,中胚轴不长不定根,鞘节不定根一般为一条,成熟株丛分蘖新技,待翌年已长成2—3片叶后,才产生新根。短花针茅群落,其地下生物量分布呈典型倒金字塔型,根量高度集中于0—20cm 土层内(占总量85.6%)。其次本文认为短花针茅种群二次开花现象是出现在不同个体上。
This article mainly in the Stipa breviflora distribution center for research, but also observed in some communities. It was proposed that Spartina alterniflora germinated in the summer and autumn with very short mesocotyls. In the same year, 1-2 tillers could be produced. In the following year, young plantlets formed with acicular acicular appearance. There were fewer tillers in mature trees in spring, with tillering in summer and autumn, and the tillering mode was progressive. Roots of a root, mesocotyl adorable roots, sheath adventitious root is generally a mature plant tiller tillers new technology, to be 2-3 years after the next year has grown into leaves, it produces a new root. Stipa breviflora, its underground biomass distribution is typical inverted pyramid type, root volume is highly concentrated in the 0-20cm soil layer (accounting for 85.6% of the total). Secondly, this paper argues that the secondary flowering of Stipa grandis occurs in different individuals.