| 2种早熟禾种群圆锥花序小穗及小花的空间分布格局 |
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| 引用本文： | 杨允菲 张洪军. 2种早熟禾种群圆锥花序小穗及小花的空间分布格局[J]. 东北师大学报(自然科学版), 1998, 0(4): 63-67 |
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| 作者姓名： | 杨允菲 张洪军 |
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| 作者单位： | [1]东北师范大学草地研究所 [2]白求恩医科大学基础部 |
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| 摘 要： | 分析硬质早熟禾和草地早熟禾２种早熟禾种群圆锥花序小穗和小花的分布格局，结果表明，２种早熟禾种群在各节位上的小穗数和小花数均适合于Ｗｅｉｂｕｌｌ分布，随着节位序的增加均呈饱和型指数增长，通过赋予各统计参数生物生态学涵义，从宏观上分析与揭示了有关生命现象与发展规律及其生物生态学机理。
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| 关 键 词： | 早熟禾 圆锥花序 小穗 小花 空间分布格局 种群 |
Patterns of Spatial Distribution on Spikelets and Florets of Conical Spikes in Poa Populations Two Species |
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| Yang Yunfei Zhang Hongjun. Patterns of Spatial Distribution on Spikelets and Florets of Conical Spikes in Poa Populations Two Species[J]. Journal of Northeast Normal University (Natural Science Edition), 1998, 0(4): 63-67 |
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| Authors: | Yang Yunfei Zhang Hongjun |
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| Abstract: | The conical spikes of Poa populations two species who were Poa sphondylodes and Poa pratensis were sampled random in the blooming stage. Different groups were divided into by number of the spike nodes every populations. The distribution patterns of spikelets and florets were analysed by statistical data every group spikes. The results showed that the number of the spikelets and the florets were all the most suitable for Weibull distribution on every node order, and were all saturation exponential growth with increase of node order. By way of statistics parameters such as given practical meanings, the some phenomena of life,the regulations of development and growth, and their mechanism of biology and ecology were analysed on macroscopic field of science. |
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| Keywords: | Poa sphondylodes Poa pratensis conical spike spikelet floret distribution pattern population |
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