搜索结果: 1-14 共查到“作物遗传学 Triticum aestivum”相关记录14条 . 查询时间(0.043 秒)
Genetic analysis of preharvest sprouting tolerance in bread wheat (Triticum aestivum L. emend. Thell.)
Preharvest sprouting ermination index iallel cross, enetic parameters read wheat editerranean region
2011/3/22
Rains during grain ripening in wheat (Triticum aestivum L.) can cause preharvest sprouting (PHS), which drastically affects the grain yield and the baking quality of flour. In the present study, to sc...
The effects of exogenous cytokinin application on sink size in bread wheat (Triticum aestivum)
Wheat source-sink relationship SGR SFD Benzylamino purin
2011/1/13
To study the effect of exogenous cytokinin application on wheat yield, an experiment was conducted in 2005 - 2006. Three varieties of wheat (Azadi cross, Darab 2 and Niknezhad) and four levels of BAP ...
Genetic analysis of some physical properties of bread wheat grain (Triticum aestivum L. em Thell)
Single kernel characteristics diallel cross regression and path coefficient analysis
2010/2/24
Very little information exists on the relative genetic architecture of the grain physical properties of wheat. The physical properties of grain have a direct or indirect influence on the milling and b...
Rlationship of Aphids and Predators on different Genotypes of Wheat Triticum aestivum under Agri Eco-System of Bahawalpur
Triticum aestivum genotypes aphids predators Pakistan
2009/9/29
Ten genotypes of wheat viz. Inqalab 91, V-2400, V-2278, V-4012, V-2000, V-2333, V-
2210, Uqab-2000, Punjnad and V-2237 were sown in the research area of Regional
Agricultural Research Institute, Bah...
Interpreting Genotype × Environment Interaction in Bread Wheat (Triticum aestivum L.) Genotypes Using Nonparametric Measures
Bread wheat genotype × environment interaction nonparametric stability measures
2009/7/3
The objectives of this study were to compare nonparametric stability measures, and to identify promising high-yield and stable bread wheat (Triticum aestivum L.) genotypes in 7 environments during 20...
Genetic analysis of some physical properties of bread wheat grain (Triticum aestivum L. em Thell)
Single kernel characteristics diallel cross regression and path coefficient analysis
2010/1/11
Very little information exists on the relative genetic architecture of the grain physical properties of wheat. The physical properties of grain have a direct or indirect influence on the milling and b...
Field Resistance of Wheat（Triticum aestivum L.）Genotypes from Different Countries to Leaf Rust（Puccinia triticina）
AUDPC leaf rust slow rusting wheat Turkey
2009/1/7
Puccinia triticina causes leaf rust in wheat and results in severe yield losses in mild wheat growing areas of Turkey: Thrace, Marmara, Mediterranean, and Çukurova. A feasible way to avoid any...
【目的】以2份六倍体小麦Opata85和W7984及其重组近交系（RIL）的111个株系和3份小麦二倍体野生近缘种为材料，研究用等位基因特异PCR检测普通小麦中单核苷酸多态性的方法。【方法】利用直接测序的方法检测2份六倍体小麦和3份小麦二倍体野生近缘种TaDREB1基因的DNA序列，在B基因组上发现了2个SNPs。以其为3?端，设计等位基因特异引物及其互补引物，对SNP进行分型，同时研究了特异引物...
小麦（Triticum aestivum L.）品种的组培特性和转基因受体选择
组织培养 转基因植物 小麦育种 资源
2008/1/10
本研究分析了西南地区地方品种资源的几个组培特性的变异及优良转基因受体小麦品系选育的可能性。研究指出，小麦幼穗的脱分化能力和愈伤组织再分化能力具有基因型间的广泛变异，农家品种和育成品种中的变异趋势一致。在不同的品种中，半愈期和成愈率分别分布在6～28 d以上和15.85%～100%，半愈期呈现了连续的分布，并在12 d和21 d处形成两个分布高峰。94.81%的品种（系）的愈伤组织能形成根，成根愈率...
小麦异交群体连续歧化选择的RAPD分析RAPD Marker Analysis of Continuous Divergent Selection in Cross-Bred Population of Wheat (Triticum aestivum L.)
小麦异交群体 数量性状 遗传距离
2007/12/30
摘要利用太谷核不育基因构建的遗传变异丰富的基础群体DNS2，进行了连续5轮歧化选择。本论文从不同的世代中，选择了10个子群体进行RAPD分析。采用7个引物扩增出116个位点，从基因频率和表型带两个角度的分析都表明，群体具有丰富的遗传变异。整个群体总的多态位点百分率达88.79，总杂合度为0.3143。子群体内（间）遗传距离的结果显示：子群体内的遗传差异小于子群体间的遗传差异；各选择子群体与未选群体...
以3个普通小麦品种富可(Fuhuko)、中国春(Chinese Spring)及小偃759和毛穗赖草杂交,发现三个品种都可与毛穗赖草杂交,其中Fuhuko×L.paboanus平均结实率高达17.6％,杂种只有发育不全的幼胚而无胚乳。对杂种幼胚在N_6+1—2mg/11BA+0.5mgGA_3或MS(其中NH_4NO_3含量降低一半)附加1mg/1IBA的培养基上进行保姆培养,部分幼胚发育成完整的...
普通小麦（Triticum aestivum L.)T型细胞质雄性不育系及其保持系的线粒体DNA比较研究。
摘要采用定位于小麦2B染色体上的72对分子标记对含小麦抗白粉病基因Pm6的八份普通小麦（T. aestivum L.）-提莫菲维（T.timopheevii zhuk.）渐渗系材料进行分析，通过分子标记标图确定8份材料中渗入的提莫菲维小麦染色体片段的大小,同时结合连锁图谱对这些材料进行了遗传和物理标图。参考本研究所用的分子标记在染色体2B上已有的定位结果，Pm6基因被位于2B 染色体长臂近末端2B...
以39份抗旱性不同的普通小麦、5份A基因组材料、4份拟斯卑尔脱山羊草TaMyb2基因的核苷酸（Aegilops speltoides）、6份粗山羊草（Aegilops tauschii）和2份四倍体小麦，分析TaMyb2基因的核苷酸序列长度多态性和单核苷酸多态性，及其与抗旱性的关系。结果发现，TaMyb2在A基因组材料中无目标片段扩增，在其他材料中检测到Ⅰ、Ⅱ、Ⅲ 3种类型序列。经详细分析，TaM...