茎的

This study ascertains the regression equation on the output per seed and its related effects: y =-0. 563-0.001x_1 +0.124x_2+0.021x_3+0.089x_4+0.067x_5-0.198x_6+0.131x_7,which shows that the fruits per seed and the biological output have the greatest influence on seed productivity-positive and leading effect, accounting to 89.74% and 6.84% in the influence; then turn to the available caudexes, fruits per seed, thousand seeds weight, the comparing between caudexes and seeds, and the caudexes highness.

在本试验条件下，确定了单株生产力与影响它的几个主要因素之间的回归方程为： y =-0 。563-0.001x_1 +0.124x_2+0.021x_3+0.089x_4+0.067x_5-0.198x_6+0.131x_7即单株结实果数和生物产量对单株生产力的影响最大，呈显著正相关，起主导作用，分别占总影响力的89.74%和6.84%；其次为有效分茎数、每果粒数、千粒重、茎杆与籽粒比、株高。

It was typically indirect effect that the following variations induced in the progenies of endosperms implanted by heavy ion beams were discovered. 1 In comparison with control, there were very high differences in biological trait, anti-oxidation enzyme activity, MDA content and protein content, chromosome aberration rate and micro-nucleus rate in M1 generation. 2 Shorter stem variants and purple stem mutants were analyzed by RAPD and AFLP. The analytic results showed that the sequences of their DNA were changed, so those variations were not physiological damage only. And there were differences among M2 generation plants of the same sort of variants or mutants, it was indicated that M2 generation may be in disjunction.

M1代的生物学性状、幼苗的抗氧化酶活性、MDA含量、蛋白质含量和染色体畸变率及微核率等发生了较大的变化。2）对其矮杆变异株和紫色茎杆突变体（M2）做RAPD和AFLP分子鉴定等研究，结果显示了矮杆变异体和紫色茎杆突变体的DNA序列发生了改变，而非仅仅产生生理损伤；同一种变异体或突变体，在M2代单株间也存在着明显的差异，表明它们可能还处于分离状态。

The promotion of the growth of the stem is not due to the increment of the number of internodes, but is chiefly due to the elongation of their internodes.

茎部生长的促进作用，并不是由于节间数目的增加，主要是由于茎部各节间有不同程度的伸长，相应也增加了各节间干物质的积累。

The results were as follows:1 The explants with two phyllomes(about 0.2-0.5mm in size )were found to be suitable for virus-free seedling culture , which were cultured on solid MS medium supplement with 6-BA,NAA and IAA ,The result indicated that the plantlet was over 30% after three months.

主要结果如下： 1。取带2个叶原基(长度约为0.2-0.5mm)的茎尖为外植体，在附加6-BA、IAA和NAA的MS培养基上进行3个月的培养，成苗率达30％以上。另外，在切取茎尖前对薯苗热疗(37℃)4周，在基本不影响成苗率的同时，可大幅度提高脱毒率。

The research also paddeds the study vacancy in banana outgrowths, and supplies theory foundation and the application examples to the reasonable utilization of banana stems and leaves.

综上所述，本研究——香蕉茎、叶有效成分的提取和洗涤活性、抗氧化特性研究具有较好的生态和社会效益，若能实际应用将产生显著的经济效益，同时又填补国内外空白，为今后香蕉茎、叶的合理利用提供理论依据和应用实例。

The results of the two orthogonal designs of artificial diet of rice stem borer both indicate that sucrose and wheat germ flour are key factors of survival days of rice stem borer. Rice stem flour、 wheat germ flour、 yeast flour and rice stem chaff flour affect the survival.

二化螟人工饲料两次正交试验的结果均表明，蔗糖和麦芽粉是影响二化螟幼虫历期的关键因子，水稻茎粉、麦芽粉、酵母粉和稻糠粉是影响二化螟幼虫成活率的关键因子，水稻茎粉是影响二化螟蛹重的关键因子。

Endophytic Bacillus subtilis strain B47,which was isolated from the stem of tomato, was an efficient biological control agent on tomato bacterial wilt. A strain resistant to streptomycin derivative of wild strain B47 was used to study the colonization ability and fluctuation of populations in soil and tomato organs, and its biological control on tomato bacterial wilt.

从番茄茎分离的内生枯草芽孢杆菌菌株B47对番茄青枯病有较好的防治作用，利用该菌株的抗链霉素突变菌株，研究其在土壤和番茄植株根，茎中的定殖能力及其对番茄青枯病的防治作用。

The most suitable explants for in vitro growth were shoot-tips and stem segments from sprouting cutting which were plugged in water or in vermiculite under weak light more than 24 h.

最适合的外植体是新切下的枝条插入含有蛭石和充足水的营养钵中24h以上，使其在弱光下迅速长出嫩枝的茎切段和茎尖。

The transformation efficiency of potato via Agrobaterium tumefaciens system was studied,and the result showed that stem cutting is better than leaf for its high callus induction efficiency ,strong ability to differentiation and regeneration and easy to obtain.

并对遗传转化体系进行了优化：采用加入AgNO3有效的防止了外植体在培养过程中的褐化问题；对于转化过程中预培养的时间、共培养时间、农杆菌浸染时间和浸染浓度进行了试验，茎段的预培养2天、叶盘预培养3天，共培养时间茎段为3天、叶盘以2天为宜。

The Plant tissue raise is the plant sterile culture technology, has the totipotency theory according to the vegetable cell, the use plant body exsomatize organ (for example root, stem, leaf, stem point, flower, fruit and so on), the organization (for example cambium, epidermis, cerebral cortex, marrow department cell, endosperm and so on) or the cell (for example big spore, small spore, somatic cell and so on) as well as the protoplast, in aseptic and suitable artificial culture medium and illumination, temperature and so on under artificial condition, can induce injuries the organization, not to decide the bud, the adventitious root, finally forms the complete adult plant the discipline.

植物组织培养即植物无菌培养技术，是根据植物细胞具有全能性的理论，利用植物体离体的器官(如根、茎、叶、茎尖、花、果实等)、组织（如形成层、表皮、皮层、髓部细胞、胚乳等）或细胞（如大孢子、小孢子、体细胞等）以及原生质体，在无菌和适宜的人工培养基及光照、温度等人工条件下，能诱导出愈伤组织、不定芽、不定根，最后形成完整的植株的学科。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。