Distribution patterns of spikelets and florets in conical spikes of three grass species

Chinese Journal of Applied Ecology ›› 1997, Vol. 8 ›› Issue (5): 500-504.

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Distribution patterns of spikelets and florets in conical spikes of three grass species

Yang Yunfei¹, Fu Linqian²

1. National Laboratory of Grassland Ecological Engineering, Notheast Normal University, Changchun 130024;
2. Institute of Animal Husbandry, Chinese Academy of Agricultural Sciences, Beijing 100094

Received:1995-10-27 Revised:1996-08-23 Online:1997-09-25 Published:1997-09-25

Abstract

Abstract: The distribution patterns of spikelets and forets in conical spikes of Phalaris arundinacea,Dactylis glomerata and Festuca arundinacea showed that their spikelets and florets on each node were in Weibull distribution,and all grew in saturation curves along with the increase of node order.By entrusting the statistical parameters with biological meanings,the relevant life phenomena,the development patterns and their biological and ecological mechanisms were analyzed and revealed macroscopically.

Key words: Phalaris arundinacea, Dactylis glomerata, Festuca arundinacea, Conical spike, Spikelet, Floret, Distribution pattern, ecological protection, random utility theory, choice experiment, contingent valuation method, willingness to pay

Yang Yunfei, Fu Linqian. Distribution patterns of spikelets and florets in conical spikes of three grass species[J]. Chinese Journal of Applied Ecology, 1997, 8(5): 500-504.

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Distribution patterns of spikelets and florets in conical spikes of three grass species

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