種子量 的英文怎麼說
中文拼音 [zhǒngziliáng]
種子量
英文
grain weight-
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。Influence of seed collecting period and afterripening on accumber seed quality
采種期和后熟時間對黃瓜種子質量的影響Aleurone layer the outermost proteinrich layer of the endosperm of grass fruits ( e. g. cereal grains )
糊粉層:在谷類種子胚乳最外面的一層或幾層細胞,含有大量的糊粉粒。Newcastle disease virus ( ndv ) strain 695, a thermostable nature avirulent strain, were replicated in embryonated chicken eggsand its rna was extracted from allantoic fluid. referred to the reported sequence of f gene, a pair of primers were designed and synthesized. f gene of ndv b95 strain was amplified by rt - pcr, the pcr products were checked by agrose gel electrophoresis and purified by agrose gel fracion method
利用從國外引進的新城疫熱穩定性天然弱毒b _ ( 95 )株接種spf雞胚繁殖病毒,經處理后提取病毒的基因組rna ,參考國內外發表的ndv融合蛋白基因序列,設計一對特異性引物,經反轉錄聚合酶鏈式反應( rt - pcr )擴增出約1700bp大小的特異性片段,將此片段回收純化后,利用t - a克隆技術將其克隆到pgem - t - easy克隆載體中,再轉化大腸桿菌jm109感受態細胞,轉化后經分子量比較、 pcr鑒定和酶切分析篩選陽性克隆。Studies on genes related to embryo and endosperm development are leading us to an extensive understanding of the mechanisms of seed development and apomixis at the molecular level, which will benefits the research for yield and quality improvement of plant seeds via genetic engineering
對胚和胚乳發育相關基因的研究,可使人們在分子水平上解析種子發育和無融合生殖的分子機制,更有效地開展植物種子產量和品質改良的基因工程。Atoms of the same element that differ in their atomic weight are called isotopes.
具有不同原子量的同一種元素被稱為同位素。He forcast for the unknown elements their atomic weights and all kinds of properties.
他預言了這些未知元素的原子量和各種特性。The molecular weight of a molecule is the sum of the atomic weights of the constituent atoms.
一種分子的分子量就是構成它的原子成分之原子量總和。Our previous studies showed existence of apoplast cam in the plant cell and cam had many extracellular functions. so it supposed cam may be one of important extracellular polypeptides and trigger the intracellular signal transduction by binding the receptor. in this study, radiolabelled ligand is used to investigate the binding characteristic of cam and a. thaliana protoplasts. and chemical crosslinking is employed to explore binding proteins in the membrane. at first, ( 35 ) ~ s - cam was produced using ( 35 ) ~ s - labeled amino acid mixture in e. coli. sds - page and autoradiograph indicated high - purified, high - specific radioactivity ( 35 ) ~ s - cam was obtained. electrophoresis of ( 35 ) ~ s - cam is the same as that of unlabeled cam with ca ~ ( 2 + ) or egta ; a quatitive of protoplasts was prepared by enzymolysis
首先,用~ ( 35 ) s標記的氨基酸混合物喂養工程菌成功地制備了~ ( 35 ) s標記的擬南芥鈣調素( ~ ( 35 ) s - cam ) , ~ ( 35 ) s - cam純度高、放射活度高、 ca ~ ( 2 + )與egta存在時的電泳行為與未標記cam相同,可作為一種高靈敏性的探針用於進行受體學分析實驗;用擬南芥種子誘導愈傷,通過酶解制備了大量原生質體。Two protein peaks can be obtained by bio - gel p - 6 chromatography and both peaks have antimicrobial activity. so the bacteriocin is consisted of two proteins with different mw. only one protein with larger mw can be detected through tricine - sds - page, and its mw is about 8, 570da
採用30硫酸銨就能完全把發酵液中的細菌素全部沉澱,通過生物膠bio - gelp - 6層析發現細菌素被分離出兩條抗菌蛋白峰,這表明r21 - 4產生的細菌素是由兩種不同分子量的蛋白質組成的,通過tricine - sds - page檢測,只能檢測到一條分子量相對較大的細菌素,分子量在8 , 570da左右。The amino acid sequences of about 100 kinds of spider toxin have been determined so far. their molecular weights were varied from 3 to 12kd except for black widow spider toxins, which were high molecular mass types. there were plenty of cysteine residues in their sequences
至今已有近百種蜘蛛神經毒素的一級結構被測定,除黑寡婦蜘蛛毒素為高分子量毒素外,其他蜘蛛神經毒素的分子量在3 - 12kd之間,不同種屬來源的毒素同源性很小,序列中含有較多的半胱氨酸。The energy is dissipated by subsequent bond cleavage reactions into various "daughter ions".
由於后續鍵斷裂反應,這種能量消散在各種「子離子」中。The species and clonal composition of an orchard will, therefore, influence the amount of selfed seed in the total seed yield.
因此,種子園的樹種和無性系組成,會影響種子總產量中自交種子所佔的數量。Based on modeling of the resultant time - dose - mortality data, the estimates of lc50 for the culture against the aphid species were 3. 0, 1. 7, and 1. 2 cominia / mm2 on days 5 - 7 after exposure to conidial shower ; the estimates of lt50 dropped from 4. 6 days at the concentration of 4. 5 conidia / mm2 to 3. 2 days at 26. 3 conidia / mm2. all aphid cadavers exhibited typical pandora syndrome. thus, the millet culture of p. delphacis was highly virulent to m. persicae, suggesting an applicability of the easy and convenient millet culture method to entomophthoralean fungi
用第1 、 5及9代黍米培養物對桃蚜2一3齡若蚜分別進行30min的單劑量抱子浴接種試驗,均表現很強的侵染力,各代培養物的實際接種劑量分別為25 . 2個抱子/ mmz 、 18 . 7個抱子/ mmz和21 . 0個抱子/ mmz ,對桃蚜的lt50分別為3Key to cotton seed quality test
棉花種子質量檢測關鍵技術The total variation range in seed weight for all crosses was 16. 7 mg.
所有雜交在種子重量上的總變異范圍為167毫克。4 ) measurement system that measures the quantity of fenilizer and seed in the box have been designed. wth the sensor installed in those boxes measdrig the quanhty of fenilizer and seed in them, when there is no enough fenilizer and seed, the system will ll automatically inform the driver to supply fertilizer and seeds timely, thus improving seeding quality and effectiveness
4 )設計了肥料箱和種子箱貯量測量系統,通過在肥料箱和種子箱上安裝傳感器來監測肥料和種子量,當肥料或種子量不足時系統報警通知駕駛員及時補種補肥料,提高播種質量與效率。Indicahng and alann lights are employed for showing system status such as feeding pipe, supplement system, seed pipe, fenilizer and seed quanhty, etc.
主機板上的各個信號指示燈和警告燈用於顯示輸種管、補償系統、種子管、肥料量和種子量等系統信號。The satellite carried 215 kilograms of seeds of vegetables, fruits, grains and cotton, the largest load of this kind since 1987
"實踐八號"衛星共搭載了215公斤蔬菜水果穀物和棉花種子上天,是1987年以來搭載種子量最多的一次。The orbitalmodule will continue to orbit the earth andcarry out moreexperiments until its battery runs out. the satellite carried 215 kilograms of seeds ofvegetables, fruits, grains and cotton, the largest load of this kindsince1987
實踐八號衛星共搭載了215公斤蔬菜水果穀物和棉花種子上天,是1987年以來搭載種子量最多的一次。分享友人