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rot
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  腐烂病
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    苜蓿幼苗叶片过氧化物同工酶与根和根颈腐烂病抗病性的关系
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    On the occurence and control of the tuber rot caused by potato late blight.
    馬鈴薯块茎晚疫病腐烂的发生与防治
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    AN APPLICATION OF FUZZY CYBERNETICS THEORY ON THE MIDDLE PERIOD FORECASTING OF EPIDEMIC TREND OFTHE COTTON BOLL ROT
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    Test of Resistance of Corn Inbreed Lines to Stem Rot and Study on Genetic Relationship between F_1 and Its Parents
    玉米自交系青枯病抗性鉴定及F_1与亲本遗传关系的初步探讨
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    Studies on the Inheritance of Resistance to Maize Stalk Rot
    玉米抗青枯病遗传规律研究
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    QTL analysis was performed using joint composite interval mapping. In Ya'an,six QTL conferring Fusarium moniliforme ear rot resistance on chromosomes 2,3,4,6,and 9 were detected and explained 8.3%25.7 % of the phenotypic variance;
    在雅安检测到位于第2、3、4、6和9染色体上的抗病QTL 6个,解释表型变异的8.3%-25.7%;
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  rot
Eucalyptus chemithermomechanical pulp (CTMP) was modified with the white-rot fungus 19-6 in a stationary culture condition.
      
Different factors that influence the effect of white-rot fungus treatment, including additional nutrition, pH value, temperature, treatment time and oxygen input were investigated.
      
The results show that the energy consumption of post refining of CTMP treated by white-rot fungus 19-6 was lower than that of untreated pulp and the strength properties also obviously improved.
      
Unfortunately, the treatment with white-rot fungus substantially decreased all optical properties except for opacity, which was essentially unchanged.
      
Influence of glucose feeding on the ligninolytic enzyme production of the white-rot fungus Phanerochaete chrysosporium
      
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The salted Chinese cabbage is a special type for salting processes of the Pak-Choi Chinese cabbage. Four representative varieties from the lower valley of Yangtze-Hwai river, i. e., Nanking Kao-Zhuon, Hanchow Pio-Keng-Bai, Kaochun Ma-Er-Dor and Yanchow Hwa-Yi-Da-Tsai, were chosen for a diallel crossing experiment according to Griffing's method one (model 1). The field experiments were held in Nanking in 1974 and in Nanking and Yanchow respectively in 1975.1. Generally, the yield, downy mildew-resistance, virus-resistance...

The salted Chinese cabbage is a special type for salting processes of the Pak-Choi Chinese cabbage. Four representative varieties from the lower valley of Yangtze-Hwai river, i. e., Nanking Kao-Zhuon, Hanchow Pio-Keng-Bai, Kaochun Ma-Er-Dor and Yanchow Hwa-Yi-Da-Tsai, were chosen for a diallel crossing experiment according to Griffing's method one (model 1). The field experiments were held in Nanking in 1974 and in Nanking and Yanchow respectively in 1975.1. Generally, the yield, downy mildew-resistance, virus-resistance and bacterial soft rot-resistance of the salted Chinese cabbage F1 all show the mid-type of their parents, and no significant differences between each pair of reciprocals. There are some crosses with heterosis and some with reciprocal effect, but some are not consistent between different years or locations. After comparison, Kao × Pio (of entire leaf type with white flat petiole), was selected for Nanking region, and Pio X Hwa and Hwa × Kao (of deeply flaky leaf type with white round petiole), for Zhangkian-Yanchow region because of their moderate disease-resistance and high yielding ability by transgressing upper parent 20.1-22.1%, 12.7-21.6% and 6.0-31.3% respectively.2. As for yield the significance of g.c.a. and of s.c.a. are consistent between two years, but the reciprocal effectsare not. There are greater and shifting s.c.a. for Kao and Pio, greater g.c.a. and stable s.c.a. for Hwa. These three varieties are all better parents, when used in crossing the reciprocal effect should not be neglected.3. In yield component of three selected crosses there are significant s.c.a. and r for Kao ×Pio and r for Pio×Hwa, but not for Hwa × Kao besides the significant g.c.a. for them. The g.c.a., s.c.a. and r all should not be neglected in the design of crossing because of different crosses having their own specialities.4. The estimates of heritability for yield in broad sense are about 76.7-81.7% indicating the possibility of high yielding crosses to be persistent from year to year.

本文旨在分析江淮下游酶白菜代表品种的杂种优势与配合力。产量、抗病性的杂种优势因组合、正反交而异。有些组合的表现还因年份、地点等环境条件而不同。评选出优势强而稳的高×瓢、瓢×花、花×高组合可供生产应用。亲本间在一般配合力、特殊配合力以及它们的波动程度上都有各自的特点,选配组合时对一般配合力、特殊配合力以及正反交效应都需注意。产量杂种优势利用的广义遗传力估计值为76.7—81.7%。

In the phytotrone a simulation of early spring cold weather was set up to study the ecological factors affecting the rotting of rice seedlings which were in the two to three leave stage.This experiment showed that low "Rapidly Available Nitrogen "( RAN ) in- soil was beneficial to the decrease of the rotting rate . Nitrate nitrogen in RAN helped to reduce rotting when RAN was within the range of 38 ppm to 168 ppm .The decrease of oxidattitti-reduction potential ( Eh ) of soil was very significantly...

In the phytotrone a simulation of early spring cold weather was set up to study the ecological factors affecting the rotting of rice seedlings which were in the two to three leave stage.This experiment showed that low "Rapidly Available Nitrogen "( RAN ) in- soil was beneficial to the decrease of the rotting rate . Nitrate nitrogen in RAN helped to reduce rotting when RAN was within the range of 38 ppm to 168 ppm .The decrease of oxidattitti-reduction potential ( Eh ) of soil was very significantly correlated to the decreaseof rotting.Based on the different effects and correlations of the main ecological factors affecting rice seedling rotting , they were classified into five grades . The most important ecological factor causing rotting was due to the combined effect of low temperature and pathogens.

利用人工气候箱模拟早春育秧期出现的低温天气过程,分析了二叶至三叶期水稻烂秧的生态因子。试验表明,土壤速效氮浓度低有利于减少烂秧。土壤总氮量一定,土层加厚或土壤氮浓度一定,泥层减薄都有利于减少烂秧。土壤速效氮38至168ppm以内以硝态氮为主有利于减少烂秧,土壤速效氮达168ppm时以硝态氮为主由于生理碱性反而不利。土壤氧化还原电位(Eh)下降与烂秧减少相关显著。低温开始时土壤Eh200mv以下烂秧率接近零,但土壤Eh达100mv以下时,由于还原性毒质累积,对秧苗正常生长不利。通过对主要有关生态因子的作用特点和相互关系的分析表明,这些生态因子可分成重要性不同的五个等级。这种分类同时揭示了针对这些生态因子采取的防治措施可能最大效果及其年度间的稳定性。

In order to search substitute for Chinese milk vetch nodule bacterial fertil- izer, we've tried for many years to mix vetch seeds with surface layer of the soil at the plant's full blooming period. And the result that we hne got is the same as transplanting nodule bacteria. Besides, the output of the milk vetch increased by thirty Percent. The soil which we use to mix the milk vetch seeds with should be got in the fi- eld where the plant grows well. Dig the soil at a depth of about 6.7 centimeter and dry the...

In order to search substitute for Chinese milk vetch nodule bacterial fertil- izer, we've tried for many years to mix vetch seeds with surface layer of the soil at the plant's full blooming period. And the result that we hne got is the same as transplanting nodule bacteria. Besides, the output of the milk vetch increased by thirty Percent. The soil which we use to mix the milk vetch seeds with should be got in the fi- eld where the plant grows well. Dig the soil at a depth of about 6.7 centimeter and dry the soil naturally. Then mix the milk vetch seeds with the dried soil at the qu- antity of 10 kilogram per Chinese mu. And plant the mixture in autumn. of the gear That will help the vetch grow well and form effective root nodule and surface layer root nodule if we do so. And that's good for nitrogen fixation. Though we need much soil, it is easy to get. And the rot nodule formed is act- ive. It is no harm if we use calcium superphosphate. And the fertilizer can incre- ase the output effectively. The mixture is especially useful for newly cultivated land.

为了寻找紫云英根瘤菌肥料的代用品,我们经过多年试用紫云英盛花期表土拌种取得了与根瘤菌肥料接种同样的增产作用,一般能增产30%左右。拌种用泥应选择盛花期植株生长较好的地块,挖取表土二寸左右阴干,在当年秋播时按每亩量20斤与种子掺和下田,有利齐苗壮苗,并能较多较早地形成有效根瘤和地表根瘤,提高固氮能力。花草泥虽用量多,但由于来源广,根瘤活性好,还能安全施用过磷酸钙,能充分发挥磷肥的增产效果,特别对新区种植效果更为突出。

 
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