Adaptive growth strategy of Khasi pine (Pinus kesiya Royle ex Gordon)
Adaptive growth strategy of Khasi pine (Pinus kesiya Royle ex Gordon)
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卡西松 (Pinus kesiya Royle ex Gordon) 的适应性生长策略
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
P. Ramakrishnan
中科院分区：
文献类型：
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作者：
Ashesh Kumar Das;P. Ramakrishnan
选择三年生的开放生长的松树树苗。一年生了三轮新芽。因此，该物种表现出经常性的冲洗模式。在为期一年的研究期间，在主要领导人上确认了两个芽的顺序。在较低的冠层水平产生的芽获得较少的延伸生长和更少，更短的针叶相比，在较高的冠层水平的芽。新梢的生长特征表明该种不耐荫。在一年中的不同时间出现的3个潮红的束有不同的下降和寿命的模式。讨论了思茅松在演替早期的环境中，对周期性冲刷和针叶寿命短的生长格局的适应策略，并将其与较快的生长速率联系起来。
Three year old open grown pine saplings were selected. Three whorls of shoots were begun in one year. The species thus exhibits a recurrent flushing pattern. Two orders of shoots were recognised on the main leader during the study period of one year. Shoots produced at lower canopy levels attained less extension growth and fewer and shorter needles compared to shoots at higher canopy levels. The growth characteristics of shoots indicated shade intolerant nature of the species. The fascicles of 3 flushes appearing at different times of the year had different patterns of fall and life expectancy. The adaptive strategy of the growth pattern with recurrent flushing and short longevity of the needles are discussed and related to faster growth rate ofPinus kesiya in an early successional environment.