搜索结果: 1-15 共查到“作物育种学与良种繁育学 Oryza sativa L”相关记录16条 . 查询时间(0.078 秒)
Artificially Selected Grain Shape Gene Combinations in Guangdong Simiao Varieties of Rice (Oryza sativa L.)
Guangdong Simiao varieties Grain shape Fixation index Allele mining Molecular breeding Rice
2023/4/21
Grain shape is a key trait in rice breeding. Although many QTLs and genes of grain shape have been identified, how different combinations of alleles of these genes affect grain shape is largely unknow...
Variation in Seedling Growth within a Rice (Oryza sativa L.) Cultivar and Its Effect on Seedling Salt Tolerance Evaluation
Embryo weight Rice cultivar/line Salt tolerance Seedling growth
2009/8/6
The variation of seedling growth, which may affect seedling salt tolerance, of 12 rice cultivars was examined based on the pattern of seedling fresh weight histogram. Some cultivars showed a normal di...
Classification of Asian Deepwater Rice (Oryza sativa L.) and African Deepwater Rice(O. glaberrima Steud.)Based on the SDS-PAGE Analysis of Seed Proteins
African rice Deepwater rice O. glaberrima Steud SDS-PAGE analysis
2009/8/5
Classification of Asian Deepwater Rice (Oryza sativa L.) and African Deepwater Rice (O. glaberrima Steud.) Based on the SDS-PAGE Analysis of Seed Proteins.
Morphological and Anatomical Characteristics of 'MC Type' Rice (Oryza sativa L.) Seedlings of cv. Basmati 217
Coleoptilar node root Coleoptile Deep seeding Mesocotyl
2009/7/29
To clarify the morphological features and internal structure of shoot apex of MC seedlings, one of the rice seedlings type, in relation to agricultural significance, an Indian rice cultivar, Basmati ...
Characteristics of Mesocotyl and Internode Growth of Cultivated Rice (Oryza sativa L.) and Wild Taxa of Oryza
Ancestral species Coleoptile Core collection Internode elongation Mesocotyl Rice
2009/7/29
The characteristics of mesocotyl and internode growth of rice cultivars (Oryza sativa L.) and wild taxa of Oryza were investigated using the following cultivars and strains : (1) 260 IRRI's core coll...
Morphological Characterization of the Seedlings of Short-root Mutant LM10 Selected from Rice (Oryza sativa L., cv. IR8)
Mutant Oryza sativa L Photomorphogenesis Rice Root Short-root
2009/7/27
We report the characterization of seedlings of LM10 which is one of the four short-root mutants derived from an M2 population of rice (Oryza sativa L., cv. IR8) seeds treated with NaN3. The morphologi...
Analysis of Plant Characteristics Determining Ear Weight Increase during the Ripening Process in Rice (Oryza sativa L.) : I. Plant characteristics determining the sink capacity of spikelets
Culm length Paddy rice Panicle number Percentage of productive tillers Sink capacity of spikelets Tiller number at maximum tillering stage
2009/7/24
The research was conducted to analyze the relationships between sink capacity expressed by hull weight per hill (SW) and culm length (CL) and weight of hulls per panicle (hW, ). hW and CL were adopted...
Growth and Yield Characteristics of Rice (Oryza sativa L.) Grown under Deep-flood Irrigation in Hilly and Mountainous Regions
Cool weather damage Deep flood irrigation Hilly and mountainous regions Rice plant Tiller
2009/7/8
Cool weather is a serious climatic constraint for rice cultivation in hilly and mountainous regions. Deep-flood irrigation is known as the most effective method to protect rice plants from cool weath...
Effects of the Amount of Seed Coating with Oxygen-Generating Products on the Seedling Establishment of Submerged Direct-Seeded Rice (Oryza sativa L.) in Tohoku Region
Calper Drainage after seeding Oxygen-generating products Rice
2009/7/8
In submerged direct-seeding of rice cultivation, the drainage after seeding contributes to stabilization of seedling establishment and the amount of oxygen generating products (Calper Fine Granule, si...
Effects of Acidified Porous Hydrate Calcium Silicate at Various pHs Applied to Nursery Bed Soil on the Growth of Rice Seedlings (Oryza Sativa L.)
Acidified porous hydrate calcium silicate Al toxicity Evans blue staining Material pH
2009/7/7
We have developed acidified porous hydrate calcium silicates (APS) with the final pH of 3.0, 3.9 or 5.3 by adding of sulfuric acid to porous hydrate calcium silicate material. In this study, the effec...
VTL 6: A semi-tall, non-lodging, and high yielding rice（Oryza sativa L.）variety for the coastal saline zones of Kerala
non-lodging high yielding rice（Oryza sativa L.）variety coastal saline zones Kerala
2009/2/20
To evolve a lodging resistant, abiotic stress tolerant, and high yielding rice variety for the pokkali areas of Kerala, F1 of the cross between ‘Cheruvirippu’ and IR 5 was crossed with ‘Jaya’. Bas...
Pedigree evaluation and molecular diversity of some true breeding rice（Oryza sativa L.）genotypes of Kerala
Genetic diversity Molecular markers Random Amplified Polymorphic DNA Paternity test
2009/2/20
Genetic diversity analysis and pedigree evaluation were carried out using Random Amplified Polymorphic DNA (RAPD) molecular markers on 20 true breeding and high yielding rice genotypes of Kerala. Re...
以拟南芥AtNHX1 cDNA 片段作为探针，筛查水稻盐胁迫植株叶片cDNA 文库，获得与AtNHX1同源的水稻新型液泡Na+/H+逆向转运蛋白基因（OsANT1）。序列分析表明，OsANT1 全长cDNA为2 178 bp，包括一个长度为1 608 bp的完整开放阅读框，编码535个氨基酸残基。在DNA水平上，OsANT1基因含有15个外显子和14个内含子，长度为4 835 bp。OsANT1...
感光性不同的4个光敏感雄性不育粳稻经受14小时光周期下的31/27℃、31/22℃、31/17℃、27/22℃和27/17℃ 5种光期温度/暗期温度组合处理。考察其花粉育性的结果表明:1,在试验设计的光、温条件下,参试的不育品系都表现高度的光敏感雄性不育。但是,不同温度处理引起了败育水平的显著变化。2,光期温度下降4℃、暗期温度相同时,花粉育性极显著地增加;光期温度不变,暗期温度变动幅度为5℃时(...
近十多年来,我国裁培稻花培育种进展很快,主要是花药培养技术有所改进,诱导频率大大提高,增加了选择的机率,但野生稻花药培养目前在国内外研究较少,诱导频率也较低。为了获得野生稻某一特性的纯合体,自1984年以来,我们对普通野生稻花药培养技术进行了研究。结果不同的材料,不同培养基成份,不同低温预处理,对诱导频率都有影响。