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phloem相关的网络例句

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与 phloem 相关的网络例句 [注:此内容来源于网络,仅供参考]

Intrafascicular CAMBIUM between xylem and phloem. Apical initials are rarely single cells except in certain lower plants, and initiate more than one structure, e.g.

这种细胞存在于根和芽的顶端分生组织以及在原来分裂组织基础上形成的侧生分生组织,如位于木质部和韧皮部之间的束中形成层。

Abstracts:Ash beech borer dies once a year.Its young worms decays drill in oleaceae ash plants of the genus phloem and xylem and makes the tree bark longitudinal crack or collapse and even cause trees death. and wither.

摘 要:白蜡窄吉丁虫在沈阳地区,主要以幼虫在木樨科梣属树木的韧皮部与木质部间钻蛀危害,使树皮纵裂或崩开,导致树木枯萎死亡。

At 21 DAG, the newly established cambium cell started periclinal division, which would result in the production of phloem outwards and xylem inward. The 11-23 immature xylem cell layers beneath the surface continued their differentiation into mature xylem cells.

表面下7-11层未成熟木质部细胞在第7-14 DAG左右脱分化形成新的形成层。21 DAG,再生形成层开始平周分裂,产生新的韧皮部和木质部。11-23层未成熟木质部细胞继续分化为成熟木质部。

The results showed that the phytophagous insects in the spruce forest in Qilian Mountains exhibited obvious vertival stratification structure. According to the amounty of species of each structure, it could be divided into 6 insect communities, namely the insects community of the shrub and herbage (928 species), of the soil and root (780 species), of the tender end and needle (117 species), of the stem phloem and xylem (66 species), of the branch thin end twig shin (38 species), of the blossom and seed and fruit (14 species).

结果表明祁连山区青海云杉林中植食性昆虫具有明显的垂直分层结构,根据林分的垂直结构和昆虫寄生、取食树木组织部位可划分为6个群落,其种类由多到少依次为灌木和草本层昆虫群落(928种),土壤与根部昆虫群落(约780种),嫩梢与针叶昆虫群落(117种),树干韧皮部与木质部昆虫群落(66种)、枝梢与嫩皮昆虫群落(38种)、花与种实昆虫群落(14种)。

It has caused extensive ciop damage and economic loss through phloem feeding,excretion of honeydew,induction of phytotoxic disorders,and transmission of plant viruses since it invaded into China in late 1990s.

自20世纪90年代后期侵入我国以来,B型烟粉虱通过取食植物汁液、传播双生病毒、引起植物生理异常、分泌蜜露污染植物等途径对作物造成大量危害,严重影响农业生产。

Acetone-water at 60℃water bath for 60min and solid to liquid ratio 1:50 for twice. 2.Through the optimal method analysis phenol content in leave,phloem and xylem from the different breeds of Pistacia vera L.

应用阿月浑子总酚最佳的提取工艺条件对不同生长时期阿月浑子和黄连木不同品种的叶片、韧皮部、木质部中的总酚含量动态变化进行分析。

The vascular bundle of stem is the type of double phloem. The anther is tetrasporangiate. Simultaneous cytokinesis in the microspore mother cell follows meriosis.

茎的维管束是双韧类型;雄蕊的花药四室,小孢子的形成为同时型胞质分裂,悬垂胎座,倒生胚珠,核型胚乳,果实成熟时胚仍处于球形胚阶段。

The main resultsshowed that the ABA in the fruit cells was subcellularly compartmented, and there exists a densitygradient from phloem cells to flesh parenchyma cells.

主要结果表明:果肉细胞中ABA是区隔化分布的;从韧皮部到果肉普通薄壁细胞之间存在ABA从高到低的分布梯度。

Kenaf phloem bundle fiber layers were separated with a acidified sodium chlorite treatment with an additional ammonium oxalate treatment.

采用亚氯酸钠冰醋酸和草酸铵处理,将不同部位的红麻韧皮部束纤维进行分层,并-测定各束纤维层的纤维细胞长度,探讨红麻韧皮部纤维细胞长度的分布规律。

Phloem peeling machine and degumming technique for raw flax fibre in red soil zone of southern ChinaBased on the physical and mechanical characteristics differences between fresh tegument and stalk,bast fibre cell and nearby cell,a new type of combined peeling and washing machine was designed for the first time in the world.

南方红壤区冬季亚麻韧皮剥制机械及其脱胶技术利用亚麻韧皮部与木质部、韧皮纤维细胞与其周边细胞间机械物理性能的差异,研制出国内外首台家用型反拉式亚麻剥麻洗麻联合机。

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