查询词典 Citrus

Protoplast fusion can circumvent reproductive barriers facing citrus, such as polyembryony and female and/or male sterility, and paves way for citrus cultivar improvement.

柑橘原生质体融合主要采用"叶肉原生质体+胚性愈伤组织原生质体"和"胚性愈伤组织原生质体+胚性愈伤组织原生质体"两种模式，融合方式主要有对称和非对称融合。

In conventional sexual hybridization of citrus, nucellar polyembryony, pollen/ovule sterility, genetic heterozygosity, wild sexual incompatibility of most citrus cultivars make it very time-consuming and low efficiency to improve fruit characters.

但是，由于柑橘类植物中存在的珠心胚现象、一些品种中的雌雄性败育、童期过长、远缘有性杂交不亲和等特点使通过传统的有性杂交方式进行品种改良进程缓慢，效率不高。

The technologies emphasis on control citrus psylla for integrated control Huanglongbing has applied widespreadly and has acquired notable control results in citrus areas in Guangxi.

摘 要：以控制木虱为重点的柑桔黄龙病综合防治理论已在广西柑桔主产区大面积推广应用，并取得了显著防治效果，作为试验示范点之一的桂林良丰农场的黄龙病发生率由2002年的25%下降到2008年的1.8%。

The results showed that citrus psyllid was never been observed in citrus Huanglongbing integrated preventing areas which focus on controlling psyllid.

在中国，除重庆、湖北尚未报导有分布外，其它柑桔主产区都有分布[2]，尤以华南柑桔主产区受其危害最重，已成为这些地区柑桔发展的主要障碍。

So we made the tests of ecophysiology of citrus in the red soil which contain different amount of water in the typical red soil region of China from 2003 to 2004. This project was also put in practice together with the economic irrigation project which was supported by National High Technology Research and Development Programe of China ("863").Two-year potted plants and 9-year mature satsuma mandarin trees Citrus unshiu Marc.cv.

为探索柑橘在不同红壤水分状况下的生理生态要素变化特征和机理，或为减轻红壤干旱对柑橘生长的伤害和对产量、品质的负面影响，或为红壤地区柑橘果园节水灌溉提供理论依据，本文结合国家"863"高技术研究发展计划农业节水专项(2002AA2Z4331)的实施，于2003-2004年在中国典型红壤地区进行了不同红壤水分条件下柑橘的生理生态反应试验。

Citrus huanglongbing is a serious citrus disease in Asia and Africa. It is caused by the infection of Candidatus Liberibacter asiaticus, a fastidious bacterium that resides in the sieve tube of host plants.

柑橘黄龙病 citrus huanglongbing 为亚洲和非洲地区重要的柑橘病害，引起柑橘黄龙病之病原体 Candidatus Liberibacter asiaticus 为寄生在寄主植物筛管的薄壁细菌，无法以人工方式培养。

OBJECTIVES: To investigate the effects of manure with chemical fertilizers on sloping-land citrus, thus developing a reasonable fertilization mangement for citrus farmers in Souther China.

研究目的：研究柑桔园的有机肥和化肥配施的效果，为南方坡地果园制定合理的施肥策略、指导农户科学施用有机肥和化肥提供技术支撑。

Asian citrus psyllids in the feeding process pd wave does not appear, from this point speculate Asian citrus psyllids lower lip and stylet have developed chemical receptors.

而在亚洲柑桔木虱整个取食过程中pd波并未出现，从此点推测亚洲柑桔木虱下唇和口针上有发达的化学感受器。

The effect of the natural enemies were assessed according to the analysis, which revealed that the parasitoids played more significant role than the predators, and that Citrostichus phyllocnistoides which had the closest synchrony and sympatry with citrus leafminer P.citrella, should be considered as dominant natural enemy, and be protected and utilized to control the citrus leafminer. Wide niche and distribution as Orius sauteri has, its narrow overlap showed the less close sympatry and synchrony as well as impossibility to control the prey.

寄生性天敌群子强于捕食性天敌群子，表明在自然环境中寄生性天敌群子对桔潜蛾的控制作用强；捕食性天敌小花蝽Orius sauteri虽然食谱生态位宽，但生态位重叠却小，说明这种天敌尽管分布广泛，可在时间和空间上没能有效"跟随"害虫的发生，对害虫控制作用不大；寄生性天敌短腹桔啮小蜂Citrostichus phyllocnistoides与桔潜蛾在时间上的同步性和空间上的同域性均优于其它天敌，为优势天敌，应加以保护和利用。

There are citrus Huanglongbing,Tristeza,Exocortis and Tatter-leaf of the graft-trans-missible diseases occurred in the citrus-producing areas in Fujian.

已知在福建省柑桔产区发生的由嫁接传染的病害有黄龙病、衰退病、裂皮病和碎叶病。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。