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citrus seedlings
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  柑桔幼苗
     EFFECTS OF H~(14)CO_3~-—HCo_3~- ON LEAF IRON CONTENTS AND ~(14)C RADIOACTIVITY OF CITRUS SEEDLINGS
     H~(14)CO_3~-─HCO_3~-对柑桔幼苗叶片含铁量及~(14)C放射性强度的影响
短句来源
     After the purified Fusarium was inoculated to the roots of normal citrus seedlings,the appeared the same symptom.
     将这种镰刀菌纯化后,接种于柑桔幼苗根系,可引起与田间病株相同的症状。
短句来源
     Effects of Paclobutrazol on Photosynthesis and Associated Characters in Citrus Seedlings
     多效唑对柑桔幼苗光合作用及有关特性的影响
短句来源
     Effects of N,K and Ca on Growth and Photosynthetic Physiology of Citrus Seedlings
     氮、钾、钙对柑桔幼苗生长与光合生理的影响
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  “citrus seedlings”译为未确定词的双语例句
     The value of K+/Na+, Ca2+/Na+ and Mg2+/Na+ decreased significantly in shoots of Pingshanyou and Fuju seedlings under NaCl stress, of which the value of K+/Na+ could be considered as an index for evaluating the salt tolerance of citrus seedlings.
     NaCl胁迫明显降低坪山柚和福橘幼苗地上部K+/Na+、Ca2+/Na+和Mg2+/Na+值,其中K+/Na+值的变化可考虑作为柑橘耐盐性鉴定的指标。
短句来源
     Similarly, cloned citrus seedlings were applied by 50ppm C-A, 300ppm Nal. , 1mg/L 5-FU respectively after CEV inoculation. The result is the same.
     用无性繁殖的柑桔苗作材料,CEV感染后分别施用50ppm赤霉素、300ppm萘、1mg/L 5-氟尿嘧啶溶液,用相同的分析方法,得到了与爪哇三七一致的结果。
短句来源
     A PRELIMINARY STUDY ON THE EFFECT OF VESICULARARBUSCULAR MYCORRHIZAL FUNGUS ON CALCIUM UPTAKE OF CITRUS SEEDLINGS
     V-A菌根真菌对柑桔吸收钙素效应的研究初报
短句来源
     ANTIBACTERIAL PEPTIDE D-GENE TRANSFORMATION INTO CITRUS SEEDLINGS AND ITS DETECTION
     抗菌肽D基因导入柑桔及转基因植株的鉴定
短句来源
     PRIMARY STUDY ON THE DAMPING-OFF DISEASE OF CITRUS SEEDLINGS
     柑桔立枯病研究初报
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  相似匹配句对
     seedlings.
     幼苗生长和产量的影响。
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     MASS PROPAGATION OF CITRUS SEEDLINGS
     柑桔实生苗大量增殖研究
短句来源
     Seedlings of 4 citrus species, C. aurantium, C.
     处理 4个月后,4个品种实生苗的苗根发育均良好,有菌根苗的地上部鲜重和干物重比无菌根苗的分别增长2.2~4.7倍。
短句来源
     in Citrus grandis (L. )
     用徒手切片、石蜡切片、细胞化学等方法观察了琯溪蜜柚(Citrus grandis(L.)Osbeck)汁囊的分化和粒化过程。
短句来源
     seedlings was studied.
     幼苗为材料,研究UV_B辐射对黄瓜幼苗生长和光合作用的影响。
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  citrus seedlings
Root morpho-topology and net nitrate uptake of two citrus seedlings, Volkamer Lemon and Carrizo Citrange, grown at two nitrogen supplies (NO3-N 5?μM and 1000?μM, respectively) were studied.
      
Substrate amendment promoted plant survival of citrus seedlings subjected to several cycles of drought stress and rehydration.
      
In this work, we assayed the efficiency of an amendment to soilless media in delaying the drought stress effect in young citrus seedlings and trees.
      
Citrus seedlings grown in autoclaved soil from Pauma Valley, artificially infested with P.
      
All respiration measurements were made on one-year-old citrus seedlings in sterilized sandy soil with minimal organic material.
      
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The genetical expression of the progeny of citrus seedlings is closely related to the poly-embryony. The seedlings of many polyembryonic varieties of Citrus reticulata and Citrus sinensis resemble closely to their parent characters, whereas the seedlings of the monoembryonic Citrus grandis always show various variations.

本文是根据调查研究一些柑桔品种实生树的遗传动态表现以及参考一些文献材料,综合说明柑桔实生繁殖和实生选种的优缺点及其应用意义,指出在实际应用时应遵循的途径和方法,并根据遗传学原理作出理论的分析和探讨。柑桔实生繁殖,在一定地区对一定品种,以及在掌握选择和培育措施的前提下可以采用;但要求繁殖具有高度典型品种,并使提早结果,原则上应该采用嫁接繁殖。在实生繁殖时结合选种,并对现有实生树开展群众性选种工作,是获得新品种的重要途径。

The adult psyllids were collected from the diseased citrus trees andtransferred to young citrus seedlings or budlings in order to test the trans-mission of citrus yellow shoot by the citrus psyllid.In 1973-1978,398 seed-lings and budlings were tested in this manner and 32 plants out of them de-veloped symptoms of yellow shoot. In another experiment, nymphs (mostlyfourth and fifth instars) were collected from the diseased citrus trees andtransferred to young healthy seedlings. When...

The adult psyllids were collected from the diseased citrus trees andtransferred to young citrus seedlings or budlings in order to test the trans-mission of citrus yellow shoot by the citrus psyllid.In 1973-1978,398 seed-lings and budlings were tested in this manner and 32 plants out of them de-veloped symptoms of yellow shoot. In another experiment, nymphs (mostlyfourth and fifth instars) were collected from the diseased citrus trees andtransferred to young healthy seedlings. When the adults emerged, they weretransferred to young seedlings or budlings in result that 5 out of 56 testplants were diseased. 110 contrelled plants without psyllids developed no sym-ptoms. The preliminary experiment results in that yellow shoot might betransmitted by the adult psyllids. A survey in 27 counties of Kwangsi was made in 1973-1977 to determinethe relation between the occurence of psyllids and the prevalence of citrusyellow shoot. The data obtained show that there is no natural spread of ye-llow shoot and no psyllids in the northern part of Kwangsi. On the otherhand, there usually exist the high population of psyllid in the southern partwhere the yellow shoot disease is epidemic. In some orchards,when in-secticides were frequently used the psyllid might be controlled and the yellowshoot disease was much slighter than those in the orchards without usinginsecticides. It comes to the conclusion that the citrus yellow shoot may beremarkably controlled by wiping out psyllids with insecticides.

1973-1978年用从田间病树上采集的柑桔木虱成虫放饲在398株健康柑桔苗上,有32株发病。用病树上采集的柑桔木虱高龄若虫置健苗上所羽化的成虫放饲的56株,有5株发病。未接虫的110株没有发病。初步说明柑桔木虱成虫可以传病。1973-1977年在广西境内的合浦、三江等27个县(市)调查柑桔木虱分布和柑桔黄龙病流行的关系。从总的趋势看,在北部未见木虱的地区,黄龙病不发生或不流行;在南部有木虱的大多数地区,黄龙病就会流行。北部未见木虱的桔林,从柳州重病苗圃引入的苗木,或用其接穗繁殖的苗木或高接的植株,均有发病,但未见蔓延。在南部有木虱分布的地区,有的果园多次喷洒杀虫剂,较好地防除了木虱,黄龙病很少发生。南部的梧州市红旗公社1965年从病区引进苗木,一部分种在地处缓坡丘陵柑桔木虱发生多的果园,1977年调查时大部植株已挖除,余下少数均为重病株。另一部分种在山冲,1977年调查时未见木虱,园中基本无缺株,查80株仅3株发病。上述情况说明黄龙病的流行与柑桔木虱的分布密切相关。因此严格防除柑桔木虱应列为预防黄龙病的一项重要措施。

In recent years there were millions of citrus seedlings infected by citrus canker, Xanthomanas citri (Hasse) Dowson, found in Hubei, Hunan, Jiangxi and many other provinces. Some trials with chemotherapy were carried out.The results of our tests showed that by dipping the diseased seedlings in a solution of 1000-2000 u/ml of streptomycin mix with 1:100 alcohl for 1-3 hours were proved to be effective.1:1000-1500 of mercuric chloride treated for 1-3 hours gave the same result to kill the pathogen...

In recent years there were millions of citrus seedlings infected by citrus canker, Xanthomanas citri (Hasse) Dowson, found in Hubei, Hunan, Jiangxi and many other provinces. Some trials with chemotherapy were carried out.The results of our tests showed that by dipping the diseased seedlings in a solution of 1000-2000 u/ml of streptomycin mix with 1:100 alcohl for 1-3 hours were proved to be effective.1:1000-1500 of mercuric chloride treated for 1-3 hours gave the same result to kill the pathogen inside the diseased lesions but a light phytotoxic effect is produced occasionally.The pathogen cannot be eradicated entirely by spraying the solution of streptomycin, mercuric chloride or bordeaux mixture on the diseased plant, whether the diseased twig and leaf have been cut or not.

对柑桔溃疡病苗化学治疗试验结果指出:病苗在1000~2000单位/毫升链霉素+1:100酒精的混合药液中浸1~3小时,便能把病苗治好。处理过的果苗,生长仍然良好。病苗在1:1000~1500的升汞水+1:100酒精的混合药液中1~3小时,也有同样的治疗效果,但苗木生长略差,死亡率略高。用链霉素、升汞水或波尔多液喷射经剪掉病枝叶,或不剪掉病枝叶的病苗,均不能把病苗完全肃清。对柑桔溃疡病的防治,许多国家(如南非、美国等),认为只有毁灭病株,才有可能彻底消灭病原。有时病菌能潜伏数年,如南非有一果园在1918年毁灭病株,1924年重种,当年又发生病害。因此,毁灭病株后,需要连续数年检查,证实无病,才能复种。

 
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