查询词典 overwintering
- 与 overwintering 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Sclerotia are conditioned to germinate by the overwintering process. In the growing season, overwintered sclerotia can germinate in one of two methods. Probably the most common is carpogenic germination which results in the production of a small mushroom called an apothecium. rpogenic germination usually requires the sclerotia to be in wet soil for one to two weeks prior to germination.
在生长季节,越冬过的菌核能以两种中的其中一种方式萌发,最为常见的很可能是子实体萌发,其结果导致了形如小蘑菇的子蘘盘的产生,子实体萌发通常需要菌核在萌发前一两周处于潮湿的土壤中。
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Rapeseed stem weevil (Ceuthorrhynchus asper Roel.) is the main rapeseed pest in Northwestern China. It occurs one generation each year with adult overwintering.
油菜茎象甲是中国西北地区油菜的主要害虫,一年发生一代,以成虫越冬。
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Combination of indoor rearing and field observations, in 2008 the overwintering codling moth adult emergence is not concentrated, it began in mid-April. The overwintering generation to reach the peak of adult emergence in mid-May, in early June to late June codling moth adult emergence did not intermittent. In early July being the first generation of adult was eclosion, the emergence period long duration and the peak appeared in late-July.
通过室内饲养和田间观察发现,2008年苹果蠹蛾越冬代成虫羽化不集中,4月中旬成虫开始羽化,5月中旬越冬代成虫羽化达到高峰期,6月上旬到6月下旬苹果蠹蛾成虫羽化没有间断。7月上旬第一代成虫陆续羽化,羽化期较长,在(来源:A904040BC论文网www.abclunwen.com)7月下旬达到高峰。8月上中旬诱捕雄成虫数量逐渐减少。
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In this study, cultivation methods and treatments such as plastic canopy, shade canopy, coving ground, anti-transpirant-pretreated, pachobutrazol-pretreated, burying for overwintering is used on the several broad-leaved evergreen plants in Beijing including glossy privet, Japanese privet, Japanese holly "Convexa", evergreen euonymus "Cu zhi", wintercreeper euonymus, English ivy, leatherleaf viburnum, littleleaf box "Wintergreen", and star Jasmine.
在研究中,采用塑料棚、荫棚、地面覆盖、喷施抗蒸腾剂、多效唑、埋土越冬等措施和处理对北京地区几种常绿阔叶植物——女贞、日本女贞Ligustrum japonicum、皱叶荚蓬、龟甲冬青(Ilex crenata'Convexa)、'粗枝'大叶黄杨(Euonymus japonicus 'Cu zhi'),'冬绿'小叶黄杨(Buxus microphylla'Winter-green'),络石、洋常春藤、扶芳藤进行了实验。
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The experiment showed that it was difficult for Cynodon dactyl on overwintering because of serious lipid peroxidation in cell membrane, the enzyme activity and resistance declined at low temperature.
说明在低温胁迫下,狗牙根叶片细胞膜脂质过氧化较严重,酶活性降低,抗性下降,这是狗牙根越冬困难的主要原因。
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Based on the weather data of geographical points and the phenological data of CBW, the single sine model that forecast the occurrence date of cotton bollworm is developed. By using year's data of Shihezi area, parameter of CBW emergence of overwintering generation, first generation and second generation in the Xinjiang region is built under the different low temperature. Based on the above research, the concepts, functional development temperature threshold and functional developmental degree-day, are put forward. Using the data of different station in the Shihezi area, the model is validated
基于地理点的气象数据和棉铃虫物候数据,建立了棉铃虫发生期预测的single sine 模型,利用石河子地区多年的数据,建立了不同发育温度条件下的新疆地区越冬代、第一代和第二代棉铃虫羽化的参数库;在此基础上提出功能发育起点和功能发育日度的概念并修订了模型,利用石河子地区植保站的数据,验证了模型的可行性。
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The results in this paper indicated that the main antifreezes in the overwintering larva of D.
不同昆虫种类其抗寒物质的种类和含量不同,在此方面已有较多报道[3]。
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The studies on the dionomics of Dendroctonus valens show that this pest overwinters mainly as adult or 3~4 larva in roots of pine at Hancheng region in Shaanxi Province. It occurres 2 generations one year by adult overwintering and 1generation one year by larva overwintering.
红脂大小蠹原产北美洲 [1~3], 1996年随木材贸易传入我国, 2001年发现于陕西省黄龙桥山林区,现已在延安和渭南地区发生危害,涉及 4个县的 18个林场,主要危害 20a生以上油松活立木的基部和根部,以成虫和幼虫蛀食树体韧皮部,短期内可导致被害木枯萎死亡。
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Then the number of larvae in the stem increased sharply for a great number of newly-hatched larvae appeared. Though some larvae transferred from stem to root before overwintering, about 43% of the larvae overwintered in tree stems at the height between 40 and 120 cm in the end of September till after the overwintering the next year.
之后,由于初孵幼虫的大量出现,使干部幼虫数量急剧增加,越冬前,虽然有部分转移至根部危害,但到9月末仍有近43%的幼虫停留在树干40~120cm处越冬,直到次年越冬结束。
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Factory remaining hot water, remaining vapor and boiler heating system, were adopted in tilapia overwintering. Every step, such as site selection, pond and fish preparation, cultivation of fish, fish selection, timing of overwintering, stocking density and managements during overwintering, was compared among three systems. The results of data analysis showed that the survival rate in remaining hot water system was 12% higher than in remaining vapor system and 21.25% higher than in boiler heating system. The overwintering cost in remaining hot water system was 735 Yuan/m~3, which was 18 Yuan lower than in remaining vapor system and 71.4 Yuan lower than in boiler heating system. The profit in remaining hot water system was 201 Yuan/m~3, which was 162 Yuan higher than in remaining vapor system and 275.4 Yuan higher than in boiler heating system.
本论文采取了余热水、余热气、锅炉加温三种方式对进行罗非鱼越冬保种,从地点选择、越冬池、鱼的准备、越冬苗种的培育、越冬前催肥、越冬鱼的选留、越冬鱼进池时间和密度、越冬期间饲养管理等环节进行对比试验获得了三种方式的试验数据并进行了分析讨论,结果显示:余热水越冬雌亲鱼的成活率比余热气越冬高出12%、比锅炉加温越冬高出21.25%;余热水越冬雌亲鱼的成本每立方米为735元比余热气越冬的成本每立方米低18元、比锅炉加温越冬的成本每立方米低71.4元;余热水越冬雌亲鱼的利润每立方米为201元比余热气越冬的利润每立方米高162元、比锅炉加温越冬的利润每立方米高275.4元。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力