异交

小麦异交群体选择分化的RAPD分析

The RAPD Marker Analysis of Wheat Outbreeding Population due to Selection Differentiation

小麦异交群体长期选择早代的RAPD多态性分析

RAPD Diversity Analysis of Recurrent Selection in Early Generations of Out breeding Population of Winter Wheat

eA系穗颈节显著伸长、异交潜力明显提高。

EA lines have significant elongated uppermost internode causing panicle exsertion better and possessing higher outcrossing potential .

以单倍体作母本，普通二倍体作父本杂交，共得到杂交种子68粒（异交结实率为0.12%-0.68%），试管培养得到21株F1。

Haploid as maternal parent was crossed with common diploid , and 68 seeds were gotten ( the cross seed setting frequency were 0.12 % - 0.68 % ) .

应用水稻eui基因改良不育系异交性状

Effects of eui gene on improving outcrossing of CMS-lines

用RAPD分子标记技术及数量遗传分析手段对小麦异交群体趋异选择4代得到的各子群体的遗传关系进行了分析，并对两种结果进行了相关分析。

The genetic relations of some subpopulations in the fourth generation of selection in outbreeding population of winter wheat were examined by RAPD techniques and quantitative analysis . The correlations of the two results were examined .

杂交指数OCI（≥4）及授粉实验也表明该种具有强烈的自交不亲和性，属于专性异交的交配方式。

Moreover , the outcrossing index and the results of bagging and artifical pollination also indicated that this species was self-incompatible intensively and xenogamy .

基因分化系数（GST）分析结果表明，苜蓿的遗传变异主要存在于品种内，这一特点与多年生苜蓿的繁育体系（异交）有关。

Analysis of gene differential coefficient ( GST ) indicating that genetic variation of Medicago sativa is mainly exits within varieties . This characteristic is related to the breeding system ( out - breeing ) of Medicago sativa .

内香3A花粉败育彻底，育性稳定，不育株率和花粉败育度均为100%，农艺性状优良，异交习性好，配合力高，稻米品质优良，抗稻瘟病力强。

It has a complete and stable male sterility with 100 % of sterile plants and pollen sterility , a good plant type and outcrossing characteristics , fine grain quality and strong resistance to blast .

双低两用核不育水稻96-5-2S的开花习性与异交结实

Studies on Flowering Habit and Hybrid Seed Set of Rice TGMS Line 96-5-2S with Double Low Critical Temperature Values

在父母本行比为3：6时，相对异交结实率可达53.5%～67.8%，制种产量为1747.5～2049.0kg／hm2。

When the row ratio of male and female parrents is 3 : 6 , relative cross-pollination setting percentage is 53 . 5 % ~ 67 . 8 % and the yield of seed is 1747 . 5 ~ 2049.0kg/hm2 .

不同生态条件下水稻三系不育系G98A的开花习性与异交结实的关系

The Relationship between Flowering Habit and Outcrossing Seed Setting Rate of G98A ( a Rice CMS ) under Different Ecological Conditions

BT型的粳型三系不育系105A和02A的柱头外露率比较低，花时集中，与父本花时的吻合度不高，开颖时间较短，异交结实率分别为35.9%和33.7%。

BT Japonica-type sterile line 105A and 02A of the stigma is relatively low exposure rate , when pre-focused , with the male parent at the time to spend with degrees is not high , the wing is shorter , strong outcrossing rates were 35.9 % and 33.7 % .

植株密度越大，异交结实率越低。

The greater the plant density , the less setting percentage .

海南冬繁棉花的天然异交与成铃

Natural Cross pollination and Boll setting of Cotton during Winter in Hainan

赤霉素在水稻异交栽培中的作用试验

Experiment on Function of Gibberellin to Outcross Cultivation in Rice

矮败小麦利用的研究Ⅱ异交结实率

A study on the Dwarfing-Sterile Wheat and Its Application

野慈姑自然群体异交率的定量估测。

Quantitative estimates of outcrossing rates in natural populations of Sagittaria trifolia linn .

高异交率粳稻不育系选育研究I高柱头外露率粳稻品系4260的选取育

Selected Breeding of Male Sterile Lines in Japonica by Improving Its High Outcrossing

杂交水稻不育系穗型大小与异交结实率的关系

Relation between Panicle Size and Outcrossing Rate in CMS Line of Hybrid Rice

雄性不育小麦异交结实研究进展

Advances in Studies on Out-crossing Seedy in Male-sterile Wheat

杂交水稻制种异交特性模拟研究

Study on outcrossing characteristics in hybrid rice seed production

5个新育成粳型光温敏核不育系开花及异交性能的研究

Studies on Flowering Habits of 5 Newly-developed Japonica Photoperiod Thermo-sensitive Genic Male Sterile Lines

6个籼型水稻光温敏核不育系异交特性的研究

Studies on outcrossing characteristics of 6 India photo thermo sensitive Genic Male Sterile Lines

小麦异交群体的遗传趋异分析

The Genetic Diversity Analysis of Wheat Outbreeding Population

近常异交水稻不育系目标性状研究

Aim Character Disquisition on Close - general The Seed Set of Outcrossing Sterile Line

水稻不育系紫A的开花习性及异交结实性

Flowering Habit and Out-cross Characteristics of Purple A , a Rice Male Sterile Line

水稻是自花授粉作物，花器构造适于自交而不利于异交。

Rice is a self-pollinated crops , flower structure and not for self-help outcrossing .

优质高异交率籼稻不育系桂花A的选育

Breeding of Indica CMS Line Guihua A with Good Grain Quality and High Outcrossing Rate

在自然条件下，柱头外露率与异交结实率成正相关。

At natural condition rate of stigma exsertion has the positive proportion with seed rate .