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The RAPD is more suitable in the diversity study of potato cultivars, and suitable to analyse the sibship of potato cultivars in breeding.

研究表明：RAPD标记简便、快速、成本低，适用于分析马铃薯遗传多样性，指导马铃薯育种实践中的亲本组配。

According to the morphological traits (Simmonds N.W.,1955,1962 ) for cultivars and wild species of Musa, Eight cultivars with different ploidy and genomic composition in this research were divided into three types: AA, AA and AAAB.

根据Simmonds(1955、1962)对栽培蕉利野生蕉的形态学分类系统，本研究的8个香蕉和大蕉品种分属AA、AAA、ABB三种类型；12个野生蕉种质分属芭蕉属的两个组：南芭蕉组和真芭蕉组。

This is a monograph related to Chinese tree peony cultivars and the cultivars' resources.

本书是有关中国牡丹品种及品种资源的专著。

In order to select the most suitable tree peony cultivars planting in the area of South Yangtse River of China,the changes of morphological,physiological and biochemical indices after submergence stress of eight cultivars were studied in this paper.

为了筛选适宜在江南地区栽培的牡丹品种，以8个盆栽牡丹品种为材料，对水涝胁迫下牡丹形态、生理生化变化进行了研究，初步探讨了8个品种的耐涝能力。

Using stem tips of two verbena cultivars as explants, the tissue culture and rapid propagation system of modern verbena cultivars was established on the base of screening suitable disinfection method, and proper culture mediums for regeneration.

以2个美女樱品种的茎尖为外植体，筛选适宜的消毒方法和初代培养、继代培养及生根培养的最佳培养基，建立了现代美女樱优良品种的离体快繁体系。

Genetic distance data showed that the heriditary conservation among 11of 14 studied cultivars (except Longshan akaryotic wampee, Longchuan akaryotic wampee and white sugar karyotic wampee) was very high (D≤0.1), which suggested that the genetic relationship between theses cultivars was very close.

结果表明，除龙川无核黄皮、龙山无核黄皮和冰糖黄皮外，其它11个品种间的遗传距离较近（D≤0.1），说明大多数黄皮品种遗传差异较小，亲缘关系较近。

Cotyledon inoculation method was used to estimate infection rate and to screen resistant and susceptive cultivars of water spinach to white rust (albugo ipomoeae-aquaticae). the results of resistance screening are (1) levels of resistance were not the same among cultivars.

利用子叶感染法，计算感病率来分辨蕹菜品系对於蕹菜白锈菌(white rust， albugo ipomoeae-aquaticae)之抗病能力的实验结果显示：(1)蕹菜对於白锈病的抗病能力随品系而异。

Based on AMMI model, the genotype × environment interaction on the grain's milling quality of 25 rice cultivars from Liaoning Province as studied, with the stability of the milling quality in relation to the eco-climatic adaptability of these cultivars discussed.

基于AMMI模型，研究了辽宁省25个水稻品种碾磨品质的稳定性，并对基因型×环境互作与气候因子的关系进行了探讨。

Based on the study of 120 cultivated herbaceous peonies and 8 wild species native to China, the relationship among them was firstly investigated, and the result indicated that 4 narrowly-distributed wild species involving Paeonia sinjiangensis K. Y. Pan, P. anomala L., P. emodi Wallich ex Royle and P. sterniana Fletcher have no chance to be the ancestor of Chinese cultivated herbaceous peonies. Then the difference and similarity existed in the root, leaves and flowers of the wild species and cultivars was exhaustively compared and it is concluded by the equivalent affinity between P. lactiflora Pall. and the cultivars.

以原产我国的120个栽培品种和8个野生种为主要研究对象，首先根据地理分布的差异对栽培芍药与各个野生种的亲疏关系进行了分析探讨，表明新疆芍药、块根芍药、多花芍药和白花芍药等4个窄布种不可能参与我国芍药品种的栽培起源；然后对栽培品种和各野生种之间的根、叶及花等性状的差异进行了细致的比较分析，进一步证明川赤芍亦不可能参与我国栽培芍药品种的起源，草芍药和美丽芍药等2个种对我国栽培芍药的起源影响甚微。

Cv. Shanyou 21 in this report, method of transforming the CpTI and bar gene to peanut with pollen tube pathway technique was studied, the mechanism of the technique in the peanut was discussed; biochemic ingredient changing among the peanut cultivars was analyzed, and genetic distance was studied with RAPD analysis, we hope that these study will be useful to crop breeding.In the two analyses different 19 peanut cultivars were analyzed by RAPD technique respectively.

本论文研究了用花粉管通道法将CpTI和bar基因转入花生品种&汕油523&和&汕油21&的实验方法，初步探讨了花粉管通道法转化花生的机理，并分析了花生品种间生化成分的变化及和RAPD聚类的遗传距离的关系，以期为花生分子育种提供依据。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失