species stage

The species diversity indices of the scrubs did not decreased from initial stage to middle stage and to climax stage of succession.

灌丛群落的物种多样性指数值随着演替的进行，没有表现出降低的趋势。

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Endogenous ZR content in daughter bulb was higher from bud stage to half withered stage and decreased evidently after that, which in mother bulb had the different changes between two species lily bulbs.

百合现蕾直至植株半枯期，新鳞茎中内源ZR处于较高水平，半枯期后显著下降，母鳞茎中ZR的变化趋势2种百合有所不同。

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The agronomic traits of the wheat species such as plant height, spike length, panicle, and thousand seed weight decrease as grain sowing stage postponed. 5.

供试小麦品种的株高、穗长、穗粒数、千粒重等性状随播期的推迟而降低。

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Major and trace elements composition and species in the different diameter particle were sampled and measured in fly ash using DFJ 1 model five stage classification air samples.

采用DFJ-1型5段分级采样器，对粉煤灰中不同粒径颗粒物中常量元素和微量元素的组成和化学形态进行了分析。

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In natural forest, pioneer tree species are more susceptible to plant pathogens than climax species. Plant community in early succession stage is susceptible to plant pathogens compared to climax community.

在天然林中，先锋树种比顶极树种对病原菌更敏感，群落演替的早期阶段对病原菌比较敏感。

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The second stage may last 8 to 13 years, its characteristics is that species emerge or diminish sharply and has obvious constructive species;

第二阶段为演替的中级阶段，需8～13年时间，植物种数增减幅度大，建群种明显；

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The predatory behavior of this species should be situated in the transition stage between the primitive stage and advanced stage in the evolution of Araneids predatory behavior.

在捕食行为的进化上，尚处于从原始阶段到高级阶段之间的一个中间过渡阶段。

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