其季节

This paper expounds afforesting technique of direct seeding oriental arborvitae from place choice, seeding season, afforesting method, seedling management etc and discusses technical points from experience.

从林地选择、播种季节、造林方法、幼苗管理等方面阐述了侧柏直播造林技术，并总结经验教训，探索其技术要点。

Pseudoverticillata, but there was no significant change in Celtis wightii. There was no significant change in leaf area specific hydraulic conductivity K(subscript l between the two seasons in all the three species, which may caused by the adjustment in hydraulic architecture through partial loss of leaves during the dry season. In the dry season, maximum carbon assimilate rate A(subscript max was significantly lower than that of the wet season in all the three species.

除油朴的枝条边材比导率K(下标 s在旱季和雨季没有显著性差异外，尖叶闭花木和轮叶戟的K在旱季都有显著的降低；而枝条的叶比导率K(下标 l三树种在两个季节间均无显著变化。K在旱季没有显著性降低，可能是常绿树种在旱季通过脱落部分叶片以调整其水力结构来保持较高的单位叶面积的水分供应。

Thirteen species of Chaetognatha were identified, and the species composition in the collected specimens was simple.

结果表明，该海域毛颚类种类组成较为简单，样品中共鉴定出13种，其组成无明显季节变化。

The clavacin toxin generally exists in the concentrated apple-juice for export, especially in the middle and later period of the squeezing season, the risk the content of the clavacin toxin exceeds the standard is very big in the case that the decay ratio of the raw material of the apple is higher. In the practical examination and verification of HACCP food safety management system, people found various methods and paths for controlling the clavacin toxin in the production of the concentrated apple-juice, b...

棒曲霉毒素在出口浓缩苹果汁中普遍存在，特别是在榨季的中后期原料苹果的腐烂率较高时其质量分数超标的风险很大，在HACCP食品安全管理体系审核实践中，发现浓缩苹果汁生产过程中，控制棒曲霉毒素的方法和途径有多种，但不论哪一种或多种组合应用都应关注原料果的品种、生产季节和储存温度，因为这些因素是降低棒曲霉毒素质量分数和生产成本的关键因素。

The studies showed that the fistular container seedlings may be adopted, but the prior condition is to make sure afforestation in rainy season in time, or the bigger size of cuppy container should be used.

研究认为，在生产上可考虑采用管状容器育苗，但其前提条件是确保梅雨季节能及时造林，否则应选用规格较大的杯状容器。

To further study the photosynthetic characteristics of medicinal plants, and provide theory basis for their scientific planting, the photosynthetic rates, light response curves of photosynthesis and CO2 response curves of four medicinal plants, namely Rosa rugosa, Eriobotrya japonica , Eucommia ulmoides and Magnolia officinalis , were measured by Li6400 portable photosynthesis system.

为了加深对药用植物光合生理特性的认识，对其进一步科学种植提供理论依据，采用Li6400便携式光合测定系统，对玫瑰、枇杷、杜仲、厚朴的光合速率日变化、季节变化、光响应曲线和CO2响应曲线进行了测定。

However, the mechanism inducing agonistic behavior is not clear until now. We used 24 colonies of C. formosanus from Hunan, Hubei, Guangxi, Anhui, and Zhejiang provinces to study the relations between the inter-colony agonistic behavior and the greeting behavior, or the secretion of frontal gland, gnathal gland and abdominal gland, the compounds of body wall, the genetic background, the contents of microelement and protein in body, the food kinds, the microorgansim in intestinal cavity, the season change, the colony age, and the colony individuals quantity.

我们以采自湖南、湖北、广西、安徽、浙江等省的24巢台湾乳白蚁为材料，对其问候行为、额腺、颚腺和腹腺分泌物组成、表皮化合物组成、遗传背景、体内微量元素和蛋白质含量、食物种类、肠道微生物等与格斗行为的关系及季节变化和巢龄、巢群大小对格斗行为的影响作了大量的研究。

Based on the results of long term and position research,the dynamic change of soil water content in Taihang Mountain-piedmont Plain with the condition of aeration zone incrassation was studied.Some results are as follows: Soil water content changes with precipitation in different year;Season dynamic can be divided into three stages: accumulating,consuming and stable;Soil water content increases with the increase of soil depth.

本研究利用连续多年的土壤水分观测数据，分析了太行山前包气带土壤水分动态变化特征，结果表明：土壤含水量受丰水年枯水年影响存在年际差异，根据不同季节土壤水分的动态特点，可将其划分为三个时期，即土壤水分消耗期土壤水分累积期和土壤水分相对稳定期。

Leaves. Result: Extraction temperature had effect on total flavonoids yield, and ethanol concentration had more obvious effect than extraction temperature. The more natural storage time, the less total flavonoids content, and the average descent rate was 24.74% per year. The flavonoids content from Lithocarpus polystachyus Rehd. gathered between August and October was the highest. The total flavonoids content was higher in the new leaves of Lithocarpus polystachyus Rehd.

结果：乙醇体积分数对总黄酮提取量有显著影响，提取温度对总黄酮提取量有影响；多穗柯自然存放时间越长，总黄酮含量越低，平均每年下降24.74%；不同季节采摘的多穗柯其总黄酮含量以8~10月最高；经对怀化多穗柯嫩叶和老叶中总黄酮的提取测定表明，多穗柯中嫩叶总黄酮含量最高，二年生最低。

Calyciforus in Donghu Lake. The reproductive pattern of parthenogenesis provides the species cloning matrilineally, and keeping the most parental mutations.

东湖作为一个中型湖泊，其环境条件的季节变化是可以预测的，因此萼花臂尾轮虫休眠卵的产生是有一定规律的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。