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The growth and yield of virus-free plants of four cultivars wese considerably different from the control cultivars.

对无病毒植株进行了田间对比试验，植株生长势和果实产量都明显超过对照品种。

HMW-GS 5＋10 was transferred to 14 wheat cultivars of Heilongjiang province through 5-6 consecutive backcrosses with biochemical marker assisted selection. HMW-GS 2＋12 and 5＋10 NILs of 9 wheat cultivars have were analysed.

利用连续的选择性回交（回交5到6代）结合&半粒法&和生化标记辅助选择，在国内首次将对烘烤品质有重要贡献的编码5＋10等优质亚基的基因定向转移到黑龙江省14个小麦主栽品种中。

An acceptable DNA fingerprint was constructed with 2 primers that could be used to identify these Au-ricularia auricula cultivars, all cultivars were distinguished from each other and showed genetic diversity.

用NTSYS软件进行聚类分析，可将14个供试菌株分为2个类群，类群Ⅰ包括11个菌株，且其可进一步划分为3个亚类；类群Ⅱ包括3个菌株；其中&981&和丰收1号的遗传距离最近。

Therefore selection breeding of new cultivars with great ornamentalvalue and cold-resistant cultivars are very important Sexual crossing breeding and bud mutation selection breeding are conventional breedingmethods in Floribunda roses.

但因为其品种较为单一，且基本都依靠进口，缺乏具有我国自主产权的优良丰花月季品种，而且我国北方由于气温低，还没有可以广泛栽培并能露地越冬的品种，因此培育观赏性高的新品种和抗寒品种成为当前园林植物育种的热点。

Based on cluster analysis,the fifteen wheat cultivars can be divided into six resistant types,i.e.near immune,high temperature resistant,high slow rusting,intermediate slow rusting,tolerant,and susceptible cultivars.

通过聚类分析，将其划分为6类：近免疫抗病、高温抗锈性、高度慢锈性、中度慢锈性、耐病性和感病性。

The cluster result revealed the evolution tendency of Rosa plants. Original character was white and simple petal. Modern character of Rosa cultivars was Larger and double flower. The Rosa of pink semi-double petal was the transition from wild species to modern cultivars.

聚类结果显示出了蔷薇的演化趋势：白色、单瓣是蔷薇较为原始的一个性状，花径大、重瓣性高是现代蔷薇栽培品种的性状，而部分粉红色半重瓣蔷薇则是从野生种到现代栽培品种的中间过渡类型。

Genetic variation in demes appeared 8 times higher than among demes. The paper also gave a few methods such as dendrogram, statistic, frequency of markers, polymorphic bands and special loci, genetic variations within and among demes for conservation and utility, molecular checking indexes for cultivars can provide basic information for protection of intellectual property rights and selection of wanted cultivars.

通过多态带和特殊带提出了桃核心种质，并利用聚类法、统计法、标记频率法、多态带数和特殊位点法、类群间和类群内的遗传差异法提出了种质保存策略；以及品种识别分子检索表的建立，为知识产权保护和正确选择品种提供了第一手资料。

Photosynthetic physiology index and diurnal change of photosynthesis, in 5 Rhododendron delavayi cultivars, such as jean de marle montague, Bule bell, which were introduced from Shijiazhuang, Hebei Province were studied. The photosynthetic light -response curve of different cultivars was also simulated.

对红粉玉蝶、井岗紫霞等5个从河北石家庄等地引进的高山杜鹃优良品种的主要光合生理指标、光合日变化进行了比较研究，并对各品种的光响应曲线进行了拟合。

The extent of changes in Nannong and Midnight lines were less than those of other cultivars, such as Bluechip and Sobra. Turf quality of Nannong line and Midnight in summer was also higher than that of other cultivars.

较耐高温的&南农选系&和Midnight在胁迫下的变化幅度明显小于不耐热的品种Bluechip、Sobra，以及耐热中等的品种America和Midnight，夏季草坪综合质量显著高于其它品种。

In total, 39 and 7 cultivars and lines with null Wx-B1 were presented in Chinese wheats and foreign cultivars respectively.

主要结论如下：1 利用1D-SDS-PAGE电泳技术可以准确检测小麦Waxy蛋白亚基组成。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷