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   系杂交稻 的翻译结果: 查询用时:0.019秒
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系杂交稻
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  line hybrid rice
     New two line hybrid rice, Liangyou 363 was outstanding for its yield, quality and aroma comparing with the check hybrid rice, Shanyouwan 3, for the regional test and production tests in Guizhou province.
     优质两系杂交稻两优 363经区域性试验和生产试验 ,产量与对照汕优晚 3相当 ,12项稻米品质检测除垩白米率 ( 14% )外 ,其余 11项指标均达农业部颁优质稻米标准二级以上 ,并具有香味。
短句来源
     A Study on Mathematical Model for High Yield of Two Line Hybrid Rice Cultural Techniques in Hilly Area of East Sichuan
     川东丘陵区两系杂交稻高产栽培技术模型研究
短句来源
     Peiza 67 (Pei'ai 64S/G67) is a newly developed two line hybrid rice with fine quality, high yield and strong resistance.
     利用低温敏核不育系培矮 64S与优质籼粳交后代G67测配而成的两系杂交稻培杂 67,是一个优质、丰产、抗性强的杂交稻新组合。
短句来源
     Breeding and Application of Two line Hybrid Rice Jinliangyou 36
     两系杂交稻金两优36的选育与应用
短句来源
     A doubled haploid population (DH) consisting of 86 lines derived by anther culture of Peiai64s/E32,a twoline hybrid rice variety with high heterosis,was used to construct a microsatellite or SSLP linkage map of rice chromosomes.
     用两系杂交稻强优组合培矮64s/E32的一个加倍单倍体(DH)群体,共86个株系,构建了水稻的SSR标记遗传连锁图。
短句来源
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  “系杂交稻”译为未确定词的双语例句
     Studies on Applied Basis and Key Techniques of Seed Production in Two-line Hybrid New Combination Kang201S/R527
     两系杂交稻新组合康201S/R527制种应用基础及其关键技术研究
短句来源
     Photoinhibition and Assimilate Distribution in Two-line hybrid Rice (Oryza sativa L.) PA64S/E32 at Late Development Stage
     两系杂交稻PA64S/E32生育后期的光抑制和光合产物分配
短句来源
     Dry Matter Productive Characteristics of Two-line Rice Hybrid“Luguang 2S/130”
     两系杂交稻泸光2S/130的干物质生产特性研究
短句来源
     A Preliminary Analysis on Yield Heterosis and Main Yield Characters of F1,F2,F3 in B-type Hybrid Hsien Rice——A Study on Multiple Generation Utilization of Heterosis in Three Lines Hybrid Rice
     B型杂交籼稻的F_1、F_2和F_3产量优势及有关性状的初步分析——三系杂交稻多代利用的探讨
短句来源
     Some physiological and biological characters of three types of two-line F1 hybrid rices: Indica-Japonica (W61 54s/02428), Indica-Javanica (W6154s/Lunhui422), Indica-Indica (W6154s/Lemoney) were studied.
     本实验研究了籼粳交、籼爪交、籼籼交三种类型的两系杂交稻组合W6154s/02428、W6154s/轮回422、W6154s/Lemoney的某些生理和生物学特性。
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  相似匹配句对
     e-Hybrid Rice
     e杂交
短句来源
     Studies on the Growth Rate of Two-line Hybrid Rice
     两杂交生长率的研究
短句来源
     The Research and Development of eui-Hybrid Rice
     e-杂交的研究与发展
短句来源
     COMMENTS ON BREEDING TWO LINE HYBRID RICE
     论杂交法育种
短句来源
     Current Status of Two-line Method of Hybrid Rice Breeding
     两杂交育种现状
短句来源
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  line hybrid rice
A comparative study on the photosynthetic parameters among intergeneric progenies derived fromOryza sativa L.×Sorghum vulgare L., its maternal parent Gui 630 and commercial 3-line hybrid rice Shanyou 63 in pot experiment in greenhouse was conducted.
      
Several two-line hybrid rice crosses using this system are under development.
      
Strategy and utilization of a herbicide resistance gene in two-line hybrid rice
      
Super-rice hybrids are two-line hybrid rice cultivars with 15 to 20 % higher yields than the raditional three-line hybrid rice cultivars.
      
The three-line hybrid rice system was invented in 1973 and then production of hybrid rice began in 1974.
      


The "two lines" hybrid rice shows heterosis in development of root system,tillers and spikes, it has more than 160-grains per spike, but the percentage of abor-ted grains (including both empty and unfilled grains) lies in the range of 30-40%.The purpose of this work is to study the position of empty grains on a spike, andto find possible ways of controlling it. The percentage of empty grains on the middle or lower rachis branches arehigher than on the upper rachis branches; the empty grains are distributed on...

The "two lines" hybrid rice shows heterosis in development of root system,tillers and spikes, it has more than 160-grains per spike, but the percentage of abor-ted grains (including both empty and unfilled grains) lies in the range of 30-40%.The purpose of this work is to study the position of empty grains on a spike, andto find possible ways of controlling it. The percentage of empty grains on the middle or lower rachis branches arehigher than on the upper rachis branches; the empty grains are distributed on thesecond (Ⅱ) branch especially. The percentage of empty grains depends upon theirposition on a rachis branch. It appears to be increasing with the number of culms(main stem or other tillers) per plant. The number of empty and unfilled grains could be regulated over a wide rangeby the nutritional status of the hybrid rice. The number of empty grains can bedecreased by enrichment in the supply of mineral nutrients or organic foods; theweights of grain can be increased also by enrichment mineral nutrients or organicfoods. It is important in both theory and practice to discover more physiologicalcauses of the formation of aborted grains of the hybrid rice.

“两系”杂交稻具有根系、分蘖和穗粒的优势,主茎穗平均160粒以上,但空秕率高达30—40%。本研究探讨了空壳粒的形成部位及可能的防止途径。空壳率以中部、下部枝梗上较高,尤其是中部、下部的第Ⅱ次枝梗上空壳率高;空壳率的高低因粒序而异,空壳率随分蘖次序的先后有增加的趋势。 杂交稻的空粒、秕粒在很大程度上受营养状况所制约,改善水稻植株的有机、无机营养状况,可以降低空粒数,增加粒重。进一步揭露杂交稻的空粒、秕粒的生理原因,在理论和实践上均有重要意义。

No heterosis in root growth of hybrid rice seedlings (8 days and 20 days old) was observed.

系杂交稻幼苗的NH_4~+吸收速率,汕优6号〉汕优3号〉南优3号〉军优。在亲本与子代的关系上,杂交第一代(F_1)的NH_4~+吸收速率介于父本与母本之间,而偏向于父本。在NH_4~+吸收的动力学参数方面,F_1的K_m小于母本而大于父本;F_1的V_(max)都大于母本而小于父本。杂交稻的NH_4~+吸收速率受到父本的遗传影响。 汕优6号、汕优3号和南优3号的K~+吸收速率很相近而且都大于亲本,表现有杂交优势。虽然优势不是很强,但在一生中可积累很多的钾。 NH_4~+抑制水稻幼苗K~+的吸收速率,但并不完全抑制K~+的吸收。K~+对NH_4~+的吸收速率没有影响。NH_4~+抑制K~+的吸收有竞争的性质。NH_4~+抑制K~+吸收的这种方式很可能是一种变构调节。

Varieties of wide compatibility were adopted to cross intersubspecifically with PSGM lines and indica rice varieties. Heterosis analysis showed that the intcrsubspecific hybrid rice possessed significant heterosis in plant height, growth duration, effective panicles and bigger panicles with more grains. The average yield was generally 20% higher than that of 3-line hybrids. The progeny of 02428 was subject to genetic analysis on segregation of fertility, plant height and apiculus pigment. It can be deduced that...

Varieties of wide compatibility were adopted to cross intersubspecifically with PSGM lines and indica rice varieties. Heterosis analysis showed that the intcrsubspecific hybrid rice possessed significant heterosis in plant height, growth duration, effective panicles and bigger panicles with more grains. The average yield was generally 20% higher than that of 3-line hybrids. The progeny of 02428 was subject to genetic analysis on segregation of fertility, plant height and apiculus pigment. It can be deduced that wide compatibility in 02428 is controlled by a simple major gene, which is linked to chromogen gene C +and located in No. 1 linkage group .Fertility segregation is genetically governed by 2 pairs of porophytic fertility genes of independent inheritance. The semidwarf genes dd of 02428 and SdSd of indica are not allelic.

利用广亲和品种与光敏核不育系或籼稻品种进行杂交,配组亚种间杂交稻,在同一条件下栽培,进行杂种优势分析,表明亚种间杂交稻具有穗大粒多以及株高、生育期、有效穗的明显优势,一般可比三系杂交稻增产三成以上.与此同时,对“02428”配组后代的育性分离,稃尖色素及株高等进行了遗传分析.研究表明其广亲和性是由简单主基因控制,并与色素原基因C~+连锁,位于第1连锁群上.“02428”育性分离的遗传基础,是由2对独立遗传的孢子体育性基因控制.“02428”的半矮生性基因dd与籼稻的半矮生性基因SdSd是非等位的.研究表明:亚种间杂交稻具有明显杂种优势,在籼、粳稻中确实存在亚种间杂交亲和性好的品种,而且这种广亲和性可以杂交转育,通过广泛杂交,完全可以筛选出结实正常,籽粒充实度好,生育期不超亲,株高适中,产量优势明显的杂交稻组合.

 
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