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Double-barrelled nitrate selective microelectrodes were used to measure the nitrate activity in leaf cytosol and leaf vacuoles of different rice cultivars in either nitrate supply or deprivation conditions.

随着水稻节水栽培技术的发展与应用，水稻硝酸根离子营养的研究已成为植物营养学和农业生产领域的十分关注的问题之一[1]。

The result of variance analysis and regression showed that leaf area is the most variable index, and the others share a close coefficient of variation, about half of that in leaf area.

结果表明，叶面积的变异最大，其余4项指标变异程度接近，变异系数约为叶面积变异系数的1/2。

Molecular identification of isolates of tomato yellow leaf curl China virus in Yunnan province.

对云南普遍发生的中国番茄黄化曲叶病毒(Tomato yellow leaf curl China virus，TYLCCNV)进行分子鉴定。

The most serious damage caused by B. tabaci is its transmission of the Tomato leaf curl Taiwan virus to tomato plants in Taiwan.

台湾番茄卷病毒(Tomato leaf curl Taiwan virus， ToLCTWV)由烟草粉虱所传播，并在台湾地区造成番茄作物的严重损失。

You can find your Nadi leaf through two means:(1) come to India in person (either on one of Siva Baba's special group trips or on an individually designed trip for those of you with tight and unpredictable schedules) or (2) use our efficient mail-order service.

注3：即使是亲身前往印度，传说也并非所有的人都能找到属于他的那片叶子，遇见自己的Nadi Leaf，还有大约40％的来访者注定失望而归——他们命运的叶子可能因为年代久远，早已在岁月和战乱、天灾一系列磨难中散失了。

Shade on the flower bolting stage can obvious improved the SPAD value in leaf and appreciatory value. The shading degree was higher, the soluble sugar and starch content in leaf was lower. But the flower formation was not affected because it may still higher than critical value.

3在花茎抽生期，对大百合进行遮荫处理能提高植株株型的观赏价值，遮荫程度越高，其叶片的SPAD值越高，叶片数越多和叶面积越大，同时株高表现也尤为显著。

The pathogens of maize gray leaf spot, Cercospora zeae-maydis, overwinteres in maize debris positioned on the soil surface under the arid condition and do not survive in leaf tissue buried below the surface.

玉米灰斑病病原菌在干燥条件下，能够在地表的病残体上安全越冬。

Relative to nitrogen topdressing in prophase, it mainly due to retroposition can provide nutrients for the wheat during flowering and grouting. Another way, it can help slow down the decline in leaf area and leaf chlorophyll content and photosynthetic rate during later stage, to meet the nutritional requirements during developmental stage of grains.

结合以往试验结论，本试验推断认为由于追氮时期后移既有利于开花和灌浆阶段养分的需要，同时有利于延缓小麦生长后期有效叶面积、叶绿素含量和光合速率的急剧下降，从一定程度上满足籽粒发育阶段的营养所需。

Significant effects of warming onbiomass allocation were only found for the A. faxoniana seedlings grown under lowlight conditions, with significantly increased in leaf mass ratio and decreasedin R/S in responses to warming manipulation. The carbon allocation responses of B.albo-sinensis seedling to warming under full light conditions were similar with theresponse of A. faxoniana seedlings grown under low light conditions. Warmingsignificantly decreased root mass ratio, and increased leaf mass ratioand shoot/root biomass ratio for the B. albo-sinensis seedlings grown under fulllight conditions.

无论在全光或林下低光环境下，增温都促使云杉幼苗将更多的生物量分配到植物地下部分，从而导致幼苗在增温条件下有更高的R／S比；增温仅在林下低光条件下促使冷杉幼苗将更多的生物量投入到植物叶部，从而使幼苗R／S比显著地降低：增温在全光条件下对红桦幼苗生物量分配的影响趋势与冷杉幼苗在低光条件下相似，即增温在全光条件下促使红桦幼苗分配更多的生物量到植物同化部分一叶部。

There are the highest content of pigmeat in leaf of plant on red soil of basaltic rock type, and the lowest of pigment in leaf of plant on red soil of old red sand.

玄武岩型红土上覆植物叶体中的色素含量最高，老红砂上覆植物叶体中色素含量最低。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

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。