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   花药大小 在 农作物 分类中 的翻译结果: 查询用时:0.616秒
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花药大小
相关语句
  anther size
    Anther length or anther size can be considered as a simple and efficeient criterion in evaluation of rice cold tolerance.
    根据花药长度或花药大小把水稻按耐寒性强、中、弱分类是一种简单而有效的方法。
短句来源
    Thirty rice varieties with different cold tolerance were planted under four different growth conditions in order to study the variance of anther size, pollen number and their relationships to the cold tolerance.
    将30份水稻耐冷性标准品种种植于4种不同的试验条件下,研究花药大小和花粉数变异的品种间差异以及与耐冷性的关系。
短句来源
    A significant correlation was found between the anther size and the number of pollens per anther (r=0. 819).
    花药大小和花粉数有极为密切的关系(r=0.819);
短句来源
    The re-evaluation was discussed on the cold tolerance of rice using anther size and pollen numhar.
    对花药大小和花粉数在评价稻的耐冷性方面的作用进行了再评估。
短句来源
    (2)The geographically wide crosses of cultivars different in cold tolerance showed higher hetrosis,e. g. Lijing No 2×Hexi No 4 and LijingNo 2×Toawda,on the anther size and setting percentage.
    (2) 地理远缘和耐冷性差异较大的品种间的杂交, 后代杂种优势较强, 尤其是丽粳2号、合系4 号与十和田间的杂交组合,无论是花药大小还是结实率均较高;
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  anther size
The influence on androgenesis of donor plant growth conditions, anther size and developmental stage of the microspore, medium composition and different anther treatments prior to culture was investigated in L.
      
The hexaploid plants are morphologically similar to the tetraploids except for a small reduction in the anther size.
      
Two phases could be distinguished: the first, the growth phase, extends from the beginning of meiosis to the vacuolated microspore stage and corresponds to maximum increase in anther size and weight.
      
Constructs that place a portion of the CaMV 35S promoter, including the native AS-1 sequences, between 5126:DAM and UBI:PAT yielded a high frequency of male-sterile plants with reduced anther size.
      
Significant differences in the frequency of male-sterile events and the associated anther size were also observed when the position of 35S:PAT was changed relative to 5126:DAM.
      
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The length and width of anther from 27 rice varieties Planted under five different conditions were measured.A highly significant correlation was observed between anther she and cold tolerance of rice.Therefore,anther size could be used as a morphological index in evaluation of cold tolerance of rice.For evaluation,it was better to use materials grown under well climate condition.The anther sizes of materials grown under low temperature were smaller than those grown under well climate conditions.The reduced rates...

The length and width of anther from 27 rice varieties Planted under five different conditions were measured.A highly significant correlation was observed between anther she and cold tolerance of rice.Therefore,anther size could be used as a morphological index in evaluation of cold tolerance of rice.For evaluation,it was better to use materials grown under well climate condition.The anther sizes of materials grown under low temperature were smaller than those grown under well climate conditions.The reduced rates of anther sizes of rice varieties with stronger cold tolerance were smaller than those of varieties with weaker cold tolerance.Anther length or anther size can be considered as a simple and efficeient criterion in evaluation of rice cold tolerance.

将27份耐寒性标准比较品种种植在5种试验条件下调查其花药大小,结果揭示,水稻的花药大小与其耐寒性密切相关,可作为耐寒性评价的形态指标,尤以良好气候条件下生长的材料为佳。经冷温处理后,水稻花药均有不同程度的缩小,但品种间花药缩小率差异较大,耐寒性强的,花药缩小程度小,反之则大。根据花药长度或花药大小把水稻按耐寒性强、中、弱分类是一种简单而有效的方法。

Thirty rice varieties with different cold tolerance were planted under four different growth conditions in order to study the variance of anther size, pollen number and their relationships to the cold tolerance. The results indicated that the anther size decreased and the rate of sterile pollens increased under low temperature. The larger the anther size, the higher the cold tolerance (r=-0. 678, cold tolerance is expressed by the grade of cold tolerance). A significant correlation was found between the anther...

Thirty rice varieties with different cold tolerance were planted under four different growth conditions in order to study the variance of anther size, pollen number and their relationships to the cold tolerance. The results indicated that the anther size decreased and the rate of sterile pollens increased under low temperature. The larger the anther size, the higher the cold tolerance (r=-0. 678, cold tolerance is expressed by the grade of cold tolerance). A significant correlation was found between the anther size and the number of pollens per anther (r=0. 819). The more the pollen number of anther, the stronger the cold tolerance (r=-0. 783). The anther sizes of Japanese varieties were smaller than those of Yunnan varieties and the pollens contained in each anther were fewer in Japanese varieties than that in Yunnan ones. The increase of the rate of sterile pollens by the treatment was more in the Japanese varieties than in Yunnan ones, too. The re-evaluation was discussed on the cold tolerance of rice using anther size and pollen numhar.

将30份水稻耐冷性标准品种种植于4种不同的试验条件下,研究花药大小和花粉数变异的品种间差异以及与耐冷性的关系。结果表明,低温使稻的花药缩小,不育花粉率增加。花药越大的品种耐冷性(用耐冷性级别表示,下同)越强(r=-0.678),这与上一年的结果较为一致;花药大小和花粉数有极为密切的关系(r=0.819);每药花粉数越多的品种耐冷性越强(r=-0.783)。日本品种的花药比云南品种小,花粉数比云南品种少;并且冷处理导致的不育花粉率增加,日本品种也明显高于云南品种。对花药大小和花粉数在评价稻的耐冷性方面的作用进行了再评估。

The size of anther,number of pollen and diameter of fertile pollen were analysed with 14 cultivars of Oryza sativa L. under cool temperature treatment. The relationship were discovered between the size of anthers and the number of pollen (r= 0. 831~** ) as well as between cold tolerance (seed-setting rate) and the size of anthers (r= 0. 853~** ) or the number of fertile pollen (r= 0. 915~** ). There is a positive relationship between coldtolerance (seed-setting rate) and the diameter of fertile pollen (r= 0....

The size of anther,number of pollen and diameter of fertile pollen were analysed with 14 cultivars of Oryza sativa L. under cool temperature treatment. The relationship were discovered between the size of anthers and the number of pollen (r= 0. 831~** ) as well as between cold tolerance (seed-setting rate) and the size of anthers (r= 0. 853~** ) or the number of fertile pollen (r= 0. 915~** ). There is a positive relationship between coldtolerance (seed-setting rate) and the diameter of fertile pollen (r= 0. 75~** ). The number of fertile pollen wasconsidered as the most important factor of cold tolerance at booting stage.

在冷温处理条件下,通过对14个不同耐冷性水稻品种的花药大小、花粉大小和花粉数的测量分析,明确了花药长度与花药内的总花粉数密切相关(r=0.831~**),花药长度和花药内的可育花粉数与耐冷性的关系密切(r=0.853~**,r=0.915~**),发现花粉大小与耐冷性之间有显著的正相关关系(r=0.75~**),可育花粉数是水稻孕穗期耐冷性的主要构成因子。

 
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