根株

It employs carbon dioxide as carbon source to replace traditional sugar, the concentration is controlled to be 2000- 3000ppm, takes light transmission, ventilating and water- proof fluoroethylene resin film as container, and gets tissue culture sprout and replanting sprout of chrysanthemum, which are characterized by largest plant height, largest leaf number, root number, longest root length and largest dry net weight of haulm and root, high rate of emergence and little pollution rate.

本发明提供了一种无糖培养菊花的方法，采用二氧化碳作为碳源，替代传统的糖，控制释放浓度为2000～3000ppm，采用透光性好、透气不透水的氟乙烯树脂膜为容器，在此种培养条件下，不同品种的菊花组培苗和组培后移栽苗在株高、叶数、根数、最大根长、茎叶部分和根部部分的干鲜重最大，出苗率高，污染率最低。

This single Stick, which you now behold ingloriously lying in that neglected corner, I once knew in a Flourishing State in A Forest, it was full of Sap, ful l of Leaves, and full of Boughs; but now, in vain does the busie Art of Man pret end to Vye with Nature, by tying that wither'd Bundle of Twigs to its sapless Tr unk;'tis now at best but the Reverse of what was, a Tree turn'd upside down, th e Branches on the Earth, and the Root in the Air;'tis now handled by every Dirt y Wench, condemn'd to do her Drudgery, and by a Capricious kind of Fate, destin' d to make other Things Clean, and be Nasty it self: At Length, worn to the Stumps in the Service of the Maids,'tis either thrown out of Doors, or condemn'd to its last use of kindling Fires.

请看看这根扫帚把，它现在灰溜溜地躺在偏僻的角落，而以前我曾在树林里碰见过它，那时它风华正茂，汁液充沛，枝叶繁盛。如今它完全变了样，却还有人自作聪明，想靠人类的手工同大自然竞争，拿来一束枯枝捆在它那早已干瘪的身上，结果是枉费心机，不过颠倒了它原来的位置，使它枝干朝地，根梢朝天，成为一株头朝下的树，然后落在干脏活累活的女仆们的手里使用。从此它受命运的摆布，把别人打扫干净，而自己却变得又脏又臭，在女仆们手里折腾多次之后，最后被扔出门外，或者作为引火的柴禾被投进火里。

In the period of radish to grow leaf the fresh weight unit area was menstruate; and then in the period of radish to grow root the leaf heat injury index and death rate of plant in summer were menstruate, also the electric conductivity percentage or high temperature cause death time; Finally radish yield and effective root rate were menstruated in the harvests and accomplish to synthesize evaluation heat tolerance of radish.

由此形成在萝卜长叶期进行苗期单位面积叶鲜重测定；长根期测定叶片热害指数和越夏死株率，或进行电导百分率和高温致死时间测定；萝卜收获期测定有效根率，最后综合评价萝卜耐热性。

To restore historical truth, Liurong will Qianlong emperor in the famous three trees 800 years old trees, using microfiche practices manifest themselves, each root pine needle pines are used less than half the wood, cutting into mm, and then paste into the passage, in the space of a plant size from 30 to 80 I root pine needle.

为了还原历史的本来面目，刘戎还将乾隆皇帝在此封侯的3株800年古树，用缩微手法表现了出来，古松的每一根松针都是用不到半毫米的木条切割而成，然后粘成一簇，在黄豆大小的空间里有30至80余根松针。

RT-PCR amplification of ginseng β-amyrin synthase gene was successfully performed based on the total RNAs extracted from ginseng hairy roots induced by Agrobacterium rhizogenes A4 using a modified guanidine isothiocyanate-method.

以发根农杆菌A4菌株诱导的人参发根为材料，用改良的异硫氰酸胍法提取总RNA，得到了纯度好的完整的总RNA。

It was then introduced by gene pulser into acrystalliferous strain CryB and a recombinant strain CryB (pBMBZGC10) was obtained. Different fermentative solutions of recombinant strain were used for multi-spray on leaves of Brassica pekinesis, Ipomoea aquatica and Lycopersicon esculentum. Results by using fluorescent detection and PCR amplification revealed that cry1Ac10 gene could not been detected in roots, stems and leaves of plants tested. The cry1Ac10 gene was also not transferred into indigenous bacteria, actinomyces and fungi in soil.

苏云金芽胞杆菌标记重组菌株与杀虫基因水平转移的研究将重组菌株CryB（pBMBZGC10）的发酵液按浓度梯度分次进行喷洒小白菜、蕹菜和番茄作为供试植株，利用标记基因研究的结果表明：cry1Ac10基因没有向供试土壤细菌、真菌和放线菌转移，也未在植物的供试植物根、茎和叶中检测到该基因。

Plant population varies from 1,400 to 1,600 plants per hectare and the plantation is kept in the field for several ratoons using suckers coming from the mother plant.

种植密度保持在1400株/公顷到1600株/公顷，种植园田地上留下母株的根出条所形成的截根苗。

A total of 83 endophytic fungi strains were isolated from fresh root samples of the plants growing on rocks or shrubs, and with red-purple lower leaf surface or with green lower leaf surface. The isolated strains were identified into 19 genera.

从附生于石上及生于杂木林或灌丛中、叶背绿色及叶背紫红色的五唇兰植株新鲜营养根段中共分离出83株内生真菌，鉴定为19个属，其中包括培养基筛选实验中分离出的30株14属。

The experiments thus demonstrated some general influences of arbuscular mycorrhizae in the balance of plant mineral nutrition and alleviation of heavy metal toxicity, also the clear variation in fungal adaptation to soil contamination and affinity to host plants, and indicated the possibility of screening of fungal strains for specific application purposes.

试验结果证实了重金属污染条件下丛枝菌根平衡宿主植物矿质营养和减轻重金属毒害的普遍积极作用，同时表明不同真菌菌株对宿主植物适合性及对土壤适应性存在明显变异，显示了适应于不同应用目的筛选适用菌株的可能性。

Their genealogical tree, that is, a large pine-tree from which they had been cut, was at one time a large, old tree in the wood.

它们的始祖，那就是说一株大枞树，原是树林里一株又大又老的树。这些柴火每一根就是它身上的一块碎片。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。