We have the intelligent experiment greenhouse of 10000 ㎡ and plant sugar-free tissue culture laboratory of 120 ㎡, and facilities such as artificial climate box, automatic meteorological observation station, full-automatic greenhouse environmental data acquisition system, soil temperature and humidity tester, actinography, photosynthetic speed tester, CO2 monitoring instrument, crop water potential determinator, crop physiological and biochemical tester, etc.

現(xiàn)有智能試驗(yàn)溫室1000m2国际黄色在线视频，植物無糖組培實(shí)驗(yàn)室120m2www.tzbeta.com，以及人工氣候箱、自動(dòng)氣象觀測站久久99精品国产免费、全自動(dòng)溫室環(huán)境數(shù)據(jù)采集系統(tǒng)国产嫖妓一区精品视频、土壤溫濕度檢測儀、光輻射儀、作物光合效能檢測儀国产精品-色哟哟、CO2氣體監(jiān)測儀亚洲欧美中文日韩V日本、作物水勢測定儀以及有關(guān)作物生理生化檢測儀等數(shù)十套儀器與設(shè)備。

Propolis is a colloid substance comprised of the resin collected by bee from plant bud and twig, and the secretion of mandibular gland and the beeswax, which is greyish green or yellowish brown in color.

蜂膠是蜜蜂從膠源植物的新生枝芽處采集的樹脂類物質(zhì)欧美一级媱片^片久久精品，經(jīng)過蜜蜂混入其上顎腺www.aa、蠟腺分泌物反復(fù)加工而成的膠狀物質(zhì)，多為青褐色亚洲图片综合、黃褐色。

The results indicated that in the mountainous areas of south and west Anhui, there were 46 and 37 species of nectariferous plants, and the distribution density of Apis cerena cerena population was 2.01 and 1.95 colony·km~-2 , respectively.

皖南山區(qū)和皖西大別山區(qū)蜜粉源植物分別為46和37種观看A片的网址，中華蜜蜂群體數(shù)量多色老99在线精品，分布密度分別為2·01和1·95群·km-2；江淮地區(qū)和淮北平原蜜粉源植物分別為17和12種无码毛片视频一区二区无码，花期短而集中免费在线视频青青无码，且面積大，適宜于意大利蜜蜂采集與生產(chǎn)激情精品一区二区在线观看，中華蜜蜂群體數(shù)量少欧美一级A片黑人又粗又大，分布密度分別為0·06和0·02群·km-2。胡蜂捕食影響蜜蜂種群消長與分布加勤比视频。

The origin time of agriculture should be back warded to the late Palaeolithic period, 10000 to 50000 years ago.

當(dāng)初馴化的植物和馴養(yǎng)的動(dòng)物可能多種多樣欧美另类XXXXHD高清，經(jīng)過不斷的比較和選擇，原始人類最終將種植畜養(yǎng)的重點(diǎn)確定在少數(shù)幾種動(dòng)植物上最新国产小视频，逐漸使之脫離野生狀態(tài)成為栽培植物和家養(yǎng)動(dòng)物精品99r，如籽粒豐碩易于保存的植物和性情溫順的草食性動(dòng)物，隨之他們也脫離了采集漁獵生活a∨在线视频，進(jìn)入了農(nóng)業(yè)社會97人人草人人。

The honey made by collecting nectar or secretion from two or more than two kinds of honey source plants, or the mixture of two or more than two kinds of unifloral honey.

蜜蜂采集兩種或兩種以上蜜源植物的花蜜或分泌物釀造的蜂蜜，以及兩種或兩種以上單一植物蜂蜜的混合物日韩精品导航大全视频在线播放免费。

The change patterns of the calorific values of eight dominant plant species on Xilin River fluvial wetlands were studied by oxygen bomb calorimeter, with the causes of the change patterns analyzed.

本文采集了錫林河濕地的8種主要植物肏屄在线免费视频，并用氧彈式熱量儀測量其熱值，闡述了這些植物的熱值的動(dòng)態(tài)變化規(guī)律嗯一毛片黄片操逼片，并對熱值變化的原因作了探討一av天堂。

Different parts of twenty dominant plant species in five plantation communities on the subtropical hilly lands in Heshan of Gunagdong as well as the litters from three of the five plantation communities were sampled, and their gross caloric value and ash content were measured by using a PARR-1281 oxygen bomb calorimeter and a muffle furnace.

從廣東鶴山南亞熱帶丘陵5種人工林群落中采集20種主要植物器官及3種群落凋落葉樣品，利用PARR-1281氧彈熱量計(jì)和馬福爐分別測定樣品的干質(zhì)量熱值和灰分含量国产午夜毛片v一区二区三区，再計(jì)算去灰分熱值国产一级A片黄女AA免费看；按器官、個(gè)體和生長型等比較分析植物的熱值和灰分特征久久免费美女黄片视频。

This paper base on 20 representative wild species with trade data such as Ginkgo biloba, Pinus koraiensis, Pseudoiarix amabilis. According to index, different house, bar code, keeping and have pictures or not, we can collect and input the herbarium information, then set up the representative species herbarium data-base model.

本文針對有貿(mào)易數(shù)據(jù)的典型野生植物標(biāo)本銀杏www.一级毛片、紅松、金錢松等20種，按照編號欧美高清视频在线观看、館別国产91麻豆免费观看、條形碼、庫存及有無圖片等統(tǒng)一數(shù)據(jù)庫字段欧美性爱播出曰韩性爱播出，進(jìn)行標(biāo)本信息采集无码免费毛片一区二区、錄入，建立有貿(mào)易數(shù)據(jù)的典型野生植物標(biāo)本數(shù)據(jù)庫模型毛茸茸性XXXX，由四個(gè)獨(dú)立數(shù)據(jù)庫所構(gòu)成中文字幕在线第一区。

With less vegetation and fruits to pick and less animals to hunt (caused by the increase of hunters and much sophisticated hunting skills), people gradually started to recognize and domesticate wild plants such as millets which were edible, drought-enduring and which had a short harvesting period. TheYellow River provided irrigation for the originally domesticated plants, which makes it the first region to have original agriculture.

由于可供采集的植物、果實(shí)之類減少可以免费观看一级毛片黄a，可獵取的動(dòng)物數(shù)量由于獵手日增和手段提高也呈減少趨勢影音先锋国产一二三区资源，就逼使初民逐漸認(rèn)識和馴化野生植物（如適于食用、耐干旱视频一区在线看、生長期短的野生粟類）人人摸人人操人人干人人，同時(shí)黃河及其支流為灌溉那些初步馴化的作物提供了條件，使黃河流域成為原始農(nóng)業(yè)在中國的最早源地之一91POPNY老熟女国产。

We collected leaves of C3 plant-R, eymosa Tratt from lower altitude of Molan, 450 m above sea level, to higher altitude of Ansun, 1330 rn above sea level, in limestone areas of southwest China at November 2001, and analyzed nutrient concentrations and carbon isotope compositions.

為了研究植物營養(yǎng)元素的含量和δ~(13)C值隨海拔而變化的相關(guān)關(guān)系偷拍一区1页，沿著海拔450 m的貴州茂蘭至海拔1330 m的貴州安順一線，采集和分析研究了C_3植物——小果薔薇(R.cymosa Tratt)的葉片人人看人人草人人搞人人鲁人人插。