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柠檬幼苗
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  相似匹配句对
     clean lemon
     清爽柠檬
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     The seed of costaria costata can be carried out by the tectnic of applying gametophyte directly.
     costata幼苗
短句来源
     EFFECTS OF BORON AND CALCIUM ON PHOTOSYNTHETIC PHYSIOLOGY AND ROOT VIGOR OF LIMON SEEDLINGS
     硼钙营养对柠檬幼苗光合生理及根系活力的影响
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     Crispy Chicken Wings with Lemon Peel
     柠檬脆皮鸡翅
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     Young seedlings of rice were grown in Yoshida's nutrient solution and in deficient Ca~(2+) solution.
     水稻幼苗在Yoshida,S.
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The trial,carried out with the

对缺铁尤力克柠檬幼苗,喷施0.3%尿素铁或0.3%硫酸亚铁或与0.2%硫酸锌、0.2%硫酸锰3者混合喷施,可获得较好的矫治缺铁复绿效果。其中,尿素铁优于硫酸亚铁,尤以尿素铁与硫酸锌、硫酸锰混合喷施的效果最佳,其叶绿素含量可恢复到正常幼苗叶的水平。同时还探讨了有关矫治缺铁复绿的机理,铁锌锰元素间的相助作用和拮抗作用等问题。

Fresh and dry weight of whole K-deficient(-K)rough lemon (Citrus limonL) seedlings. were reduced 4-fold (P<0.001) as compared to the K-sufficient (+ K)seedlings. Nitrogen metabolism of youngest, fully expanded leaves was monitored during a period of eight months. Results showed that leaves of -K plants accumulated 2. 5-fold more ammonia than the + K Plants (P<0.001 )and exhibited a concomitant increase in both activity of the de novo arginine biosynthctic pathway (2. 5-fold ) and free-arginine concentration...

Fresh and dry weight of whole K-deficient(-K)rough lemon (Citrus limonL) seedlings. were reduced 4-fold (P<0.001) as compared to the K-sufficient (+ K)seedlings. Nitrogen metabolism of youngest, fully expanded leaves was monitored during a period of eight months. Results showed that leaves of -K plants accumulated 2. 5-fold more ammonia than the + K Plants (P<0.001 )and exhibited a concomitant increase in both activity of the de novo arginine biosynthctic pathway (2. 5-fold ) and free-arginine concentration (3. 5-fold ).Leaf proline content of- K plants increased 1. 6-fold, while putrescine content increased 10-fold. Arginine decarboxylase (ADCase ) activity was accelerated in -K plants.

缺钾对粗柠檬幼苗鲜重和干重均较正常供钾植株减少了4倍(P<0.001)。连续8个月对最新展开叶的氨代谢分析结果显示:缺钾植株叶片氨含量比对照高2.5倍(P<0.001);精氨酸代谢加强,游离精氨酸浓度增加比对照高3.5倍(P<0.001);游离脯氨酸校对照高1.6倍,而丁二胺含量增加了10倍;缺钾条件下叶片精氨酸脱羧酶活性增强。

In a sand culture (pH 5.6~5.8 or 7.6~7.8), the optimized regression design with two factors at five levels was adopted to in vesitigate the effects of different concentrations of B and Ca in the media on the growth, chlorophyll in the leaf, photosynthetic rates and root vigor of limon seedlings. Based on the results of determinations, a few mathematical models were established. Inadequate or excessive B and Ca decreased chlorophyll content and photosynthetic rate.With a Ca/B ratio of 491 in the leaf at pH 5.6~5.8...

In a sand culture (pH 5.6~5.8 or 7.6~7.8), the optimized regression design with two factors at five levels was adopted to in vesitigate the effects of different concentrations of B and Ca in the media on the growth, chlorophyll in the leaf, photosynthetic rates and root vigor of limon seedlings. Based on the results of determinations, a few mathematical models were established. Inadequate or excessive B and Ca decreased chlorophyll content and photosynthetic rate.With a Ca/B ratio of 491 in the leaf at pH 5.6~5.8 or of 293 at pH 7.6~7.8, the chlorophyll content reached its maximum; and with a Ca/B ratio of 525 in the leaf at pH 5.6~5.8 or of 285 at pH 7.6~7.8, photosynthesis showed the maximum rate. A moderate drop in B and Ca concentration increased root vigor, while excessive B and Ca depreesed root vigor. Under the alkali condition, the root vigor was significantly lower than under the acid condition.

采用二因素五水平回归最优设计、砂培,两种pH环境(pH15.6~5.8,pH27.6~7.8),研究了B,Ca不同浓度对柠檬幼苗生长、叶片叶绿素含量、光合强度及根系活力的影响,建立了相应的数学模型。结果表明,B,Ca缺乏或过量降低叶绿素含量和光合强度。叶绿素含量最大时的叶Ca/B分别为pH1下491,pH2下293;光合强度最大时的叶Ca/B分别为pH1下525,pH2下285。B,Ca浓度适量下降提高了根系活力,而B,Ca浓度过量抑制了其活力,碱性环境的根系活力明显低于酸性环境。

 
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