The three main categories are green , black , and oolong . all three kinds are made from the same plant species 最主要的三大種茶分別是綠茶,紅茶,和烏龍茶。這三種茶都是出自同種植物種。
Along several streams in alaska , we have calculated that the total amount of nitrogen and phosphorus provided by the carcasses equals or exceeds recommended concentrations of commercial fertilizer for similar plants in northern forests 沿著阿拉斯加的幾條溪邊,我們計算了鮭魚尸體所提供的氮、磷總量,等于甚至超過商業肥料對北部森林同種植物的建議濃度。
Three experimental sites were selected from east to west on ordos plateau for measuring the main physioecological indices of caragana intermedia such as photosynthesis rate , transpiration rate and water use efficiency to study the response of same plants to different environments 在鄂爾多斯高原從東向西的降水梯度上,選取三個實驗點測定檸條的光合、蒸騰和水分利用效率等主要生理生態指標,分析了同種植物對不同環境的反應。
Diurnal variation in transpiration rates for different plants followed a similar pattern ; transpiration rates were low in the morning , increased as temperature and light intensity increased , and then declined again . transpiration rates for most plants had a single peak each day . some plants had two peaks per day 中午光照最強時,有些植物會出現午休現象,其日變化曲線表現為雙峰型,同種植物在有些月份的日變化曲線為單峰型,有些月份又表現為雙峰型。
At the surface of the pollen grains there are three types of aperturates , including three porates type , three colpates type and three porate - colpates type ; and four types of sculpture , namely , reticulate , striate , striate - reticulate and verrucate . the upper epidermal cells of the leaves of 12 species plants are detected with hpias - 1000 image analytic system through the treatment of binarization , and the experimental methods are proved stable . the results indicated that the waviness of the anticlinal walls ( sfc ) and the ratio of the feret ' s diameter ( slf ) of the epidermal cells of the middle lamina in the third node of leaves starting from the lowerest part of the stem have a relative constant range and could distinguish from each other . oieanolic acid , l , 5 , 8 - trihydroxy - 3 - methoxyxanthone and swertiamarin are separately detected on the tlc , and the different chromatogram of various plants can be considered as characters of identification . the contents of oleanolic acid in 12 species of plants are determinated by hplc , but among the different plants and botanical organs their contents are different , and the highest content in flowers 本文對川鄂產獐牙菜屬藥用植物資源進行了野外調查、標本采集和鑒定,對12種干燥藥材的性狀進行了描述,提供了可以鑒別的特征。通過掃描電子顯微鏡觀察的12種本屬藥用植物的花粉粒均為單粒花粉,萌發孔有3孔型, 3溝型和3孔溝型三種類型;表面紋飾包括網狀紋,條狀?網狀紋,條狀紋和瘤狀紋四種類型。用hpias ? 1000高清晰度彩色病理圖文分析系統對葉片上表皮細胞作圖像分析,并進行方法學研究,結果表明,同種植物莖上第3節葉片中段主脈和第1側脈之間葉上表皮細胞垂周壁彎曲程度sfc值和細胞縱、橫向直徑的比值slf值,種間有顯著差異,每種都有相對恒定范圍值。