有根性

In the self-bred progenies of autopolyploid,we found that a very few chimaeraexist in the cells of root tips,but most of them had no change in ploidy. We also found13 diploid plants in the experimental plot (ratio is 0.46%) and can be divided into 4categories.

在部分同源多倍体株系的自交结实后代中，随机取样进行根尖染色体检查，结果表明多倍株系体的自交结实后代倍性没有变化，但发现有个别细胞为不同倍性的嵌合体；田间观察到分离出来的极少数正常二倍体，占0.46％，按照形态特征可以分成四个不同的类型。

The results indicated that the treatment of irradiation restrained the growth and differentiation of protocorm, especially to roots.The LD50 is 67.23Gy, because the protocorm is a integrate embryoids and higher tolerance was found. Ploidy analysis showed that most of aberrant seedlings go with the change of DNA and they were not euploid. When the plants trearted by irradiation, some of aberrant seedlings appeared stem forfication, and leaves appeared chlorophyll-deficient or green-white.,probably due to some genes' expression or closing.

结果表明：辐照处理对种胚原球茎的生长和分化有抑制作用，尤其是对根的抑制更为明显；由于种胚原球茎的完整性好，耐受性强，其辐照半致死剂量(LD50)为67.23Gy；流式细胞分析表明，大多数外部形态发生改变的植株其细胞内DNA的倍性发生了改变，出现相当多的非整倍体；此外，辐照产生的变异苗出现茎分叉、叶片缺绿或白绿相间等现象，可能是由于某些基因的表达与关闭引起的。

Also on the team are Emily Prentiss,the daughter of high-powered diplomats who recently joined the team and must prove her worth to Hotchner;Special Agent Derek Morgan,an expert on obsessional crimes;Special Agent Dr.

专家小组的成员还包括对性犯罪有很深研究的特工艾尔·格林威；强迫性犯罪方面的专家德瑞克·摩根；智商超高但社会交往能力极低的天才博士斯宾塞·瑞德。

Methods After treating 147 teeth which diagnosed as aschronic apicitis were suitable for root canal therapy,divided at random into three groups:0.5% Anerdian treatment group,FC group and dry cotton spill to seal the root canal of them.

结果 安尔碘作为根管消毒药物治疗根尖周疾病效果与FC相比差异无显著性，而FC对机体组织有一定刺激性和细胞毒性，且部分患者会过敏。

This paper introduce the character of pueraria lobata starch,chemical composition and pharmacological function of pueraria lobata.

葛根淀粉与玉米淀粉、甘薯淀粉在淀粉糊的透光率、冻溶性、凝胶强度和对酸碱的稳定性上有差别；采用正丁醇重结晶法，可以把葛根淀粉的支链淀粉和直链淀粉从整个淀粉体系中分离开来。

In conclusion, Macleaya cordata extracts improved growth performance and alleviated weaning stress in weanling piglets. This study demonstrates the potential use of Macleaya cordata extracts as a feed additive of weaned piglets instead of antibiotics.

试验显示，血根碱和博落回提取物均能显著提高断奶仔猪的生长性能，有效缓解了断奶应激，血根碱或博落回提取物作为植物源性抗生素替代抗产品在断奶仔猪日粮中有良好的应用效果。

UV-B radiation decreased significantly thequantity of bacteria,actinomyces and fung.UV-B rediation affected significantly the quantity of azotobacter, nitrobacter,denitrifying bacteria, cellulose decomposing bacteria and phosphate decomposing bacteria,but these effects depended ondevelopmental stages of spring wheat.The population qua...

UV－B辐射能显著降低细菌总数以及放线菌和真菌数量；UV－B辐射对好氧性自生固氮菌、亚硝酸细菌、反硝化细菌、好氧性纤维素分解菌和解磷细菌数量也有显著的影响，但这种影响具有生育期之间的差异，春小麦根际土壤微生物种群数量与土壤营养成分有关。

Water-soluble polysaccharide content in Poria mycelia was significantly higher than that in natural Poria.

结果 加松根液发酵培养的茯苓菌丝产量有提高，但水溶性多糖含量下降；发酵菌丝较天然茯苓水溶性多糖含量显著提高。

From its roots, we gained 9 compounds including triterpenes, steroidal glycoside, and fatty acid, a triterpene and a of them are new compounds.

分别对肥牛树的根、茎、叶三个部分的乙醇提取物进行了提取分离工作，从其根中分离鉴定了9个化合物，包括三萜、甾醇苷、酚性化合物、螺环化合物和脂肪酸等，其中有两个新化合物，即一个三萜和一个螺环化合物。

It would be helpful to understand the complicated mechanism of the human canal system as well as to improve the accuracy of the clinically dental applications.

本论文的研究结果将有助於进一步了解牙齿根管系统之复杂电性机制，且对於根尖定位器在临床牙医应用上预料将有极大裨益。

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。