生根

The best culture medium for root induction of Celastrus angulatus was that containing: 1/2 MS+MET3.0 mg.L-1+IBA 0.8 mg.L-1 or 1/2 MS+ MET3.0 mg.L-1 + IBA 0.5mg.L-1 for 12 days, in dark.

诱导苦皮藤组培苗生根的最佳因素配比为：1/2 MS+MET 3.0 mg.L-1 + IBA 0.8 mg.L-1和1/2 MS +MET 3.0 mg.L-1 + IBA0.5 mg.L-1，暗培养12 d效果最好。

Vitrification, chlorosis, scale-shaped differentiation and failure to root of regenerated shoots frequently occur in industrialized production of tetraploid watermelon Citrullus vulgaris L.

西瓜四倍体工厂化生产中存在试管苗玻璃化、黄化死亡、鳞片状分化、不生根等不利问题，在MS中NH4NO3 含量减半的情况下，前两者可得到有效的控制；用连续增殖、连续壮苗的方法，解决了西瓜四倍体鳞片状分化的难题；用茎尖扩繁的最佳培养基为MS(含半量NH4NO3 )+2 。

Plantlet regeneration from cotyledon of Citrullus lanatus cv. Zhangkang No. 4 was studied. The results showed that aseptic seedlings should be cultured in dark for 3d, then exposed to a photoperiod of 16/8h/d for 3d. The callus induction rate was higher in cotyledons placed facing downwards to the medium than in those facing upwards. The highest induction rate occurred in MS medium containing 6-BA (2.0mg/L), kinetin (1.0mg/L)and GA3 (1.0mg/L). The induction initiated in dark and took 7 days, while callus growth and differentiation proceeding for 7 days under 16/8h light-dark cycles. A highest rate of embryogenic callus was obtained after 3 successive subcultures.

以无子西瓜郑抗4号无菌苗子叶为外植体，进行了体细胞胚发生及植株再生的研究，结果表明，无菌苗应先进行3d暗培养，然后采取光照16h/d和黑暗8h/d培养3d；将子叶的叶面朝下放置于培养基上的愈伤组织诱导率高于叶面朝上的培养方式；子叶诱导胚性愈伤组织的最适培养基配方为MS+6-BA2.0mg/L+KT1.0mg/L+GA31.0mg/L；诱导需要在黑暗条件下启动，进行7d暗培养，而生长分化于光照16h/d和黑暗8h/d条件下培养7d；继代3次得到的胚性愈伤组织最多；最适生根培养基配方为1/2MS+IBA0.3mg/L。

The results showed choosing the diameter as 1.0~2.0cm thick root segment, the length is above 15cm, using 108 Sheng Gen Fen or Du Gen Su to declinate cuttage, the survival rate can reach to 70%,And they can become independent plant.

结果表明：选择直径为1.0~2.0cm粗的根段，长度为15cm以上，使用108生根粉或杜根素药剂处理后，进行斜向扦插，成活率能达到70%以上，并成为独立的植株。

In the generation of a face gear by a shaper, there is the possibility of undercutting in the dedendum area of inner diameter and the pointing of the teeth in the addendun area of outer diameter.

在面齿轮的加工中，面齿轮在内径处易产生根切，而在外径处易产生齿顶变尖现象，因此面齿轮的齿宽受到了限制。

Culms loosely tufted, ascending, rooting at lower nodes, 30–60 cm tall, nodes eglandular.

松弛丛生，上升的秆，在下部节上生根，30-60厘米高，无腺体的节。

The successful cutting and graft of Elaeagnus angustifolia L. provided a condition for planting in large-scale and knew the rooting rate of different cutting medium.

沙枣扦插和嫁接获得了成功，为其快速大面积种植提供了条件，同时得出了不同基质扦插的生根率。

Result The results revealed that different concentration of C6-HSL could obviously inhibit the growth rate of root and the number of roots, but have no effects on plant height, number of nodes and leaf size. The POD and SOD activities and the concentration of H2O2 showed a significantly increased when the potato implants were pretreated with C6-HSL, however, no effect of C6-HSL pretreatment on PAL and PPO activities were found. The ability of resistance aginst Erwinia carotovora subp. carotovora was signifinantly improved after treated by C6-HSL. Incidence was obviously lower than the control group.

结果］不同浓度的C6-HSL能明显抑制马铃薯的出根率和生根数，而对株高、茎节数及叶片大小没有影响；植物标志性防御酶类中POD和SOD的活性以及H2O2的产生量经C6-HSL诱导后显著提高，而PAL和PPO的活性则没有明显变化；抗病试验中，经C6-HSL诱导的马铃薯植株能有效抑制胡萝卜软腐欧文氏菌的侵染，发病率明显低于对照组。

Plants of marshy places or aquatic, often cultivated for food; stems usually repent and rooting, or floating, thick, fistulose

水生的沼泽的地方或，适合食品栽培的的通常的植株；茎通常后悔和使生根，漂浮的或，厚，中空 15 Ipomoea aquatica 蕹菜

The in vitro regeneration techniques were established in Fortunella crassifolia and Citrus microcarpa.

建立了金弹和四季桔试管苗离体再生体系筛选出了适合金弹和四季桔种子萌发、离体繁殖、壮苗生根的一系列培养基。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了