根系
- 与 根系 相关的网络例句 [注:此内容来源于网络,仅供参考]
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On the other hand, a deep-rooted, low-tillering variety has a well-spaced, lateral root distribution and its roots grow more actively in deep soils than those of a shallow-rooted, high-tillering variety.
另一方面,深根、低分蘖品种根系分布间距适当、侧向生长、深层土壤中的根系比浅根、高分蘖品种活力更强。
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It is the soil mass maintained by the umbrella-shaped root system of trees during the geological history,and it is formed by the interactive compression of tree load and growth of main root system and by the differential compaction of surrounding soil mass;in other words,it also is a kind of the sedimentary textite or sedimentary structure formed under the influences of biological process.
它是地质历史中,树木伞状根系所维系的土体,在树木的自重荷载和主干根系生长的相互挤压作用下与外围土体的差异压实造成的;换言之,它又是一种在生物作用影响下形成的沉积结构体或沉积构造。
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Under the condition [0mmol/L,raise in vermiculite] of phosphorus stress, variation in root morphology and biomass among different soybean genotypes at seedling stage were studied, the result shows: At two-leaf age, higher P-efficiency genotypes(K1 and K2) don't develop their potential advantages; at four-leaf age, some characteristics of K1 and K2, such as lateral root number, lateral root length, root absorbent area and dry weight of shoot are all less reduced than those of intermediate P-efficiency genotypes(Z1 and Z2) and of lower P-efficiency genotypes(M1 and M2), and dry weight of root and R/S of higher P-efficiency genotypes are more increased than those of the others.
在磷胁迫[0mmol/L,砂培]条件下,对不同基因型大豆苗期在根系形态、生物量等方面的差异进行了研究,结果表明:磷高效基因型在两叶期并未发挥出其基因型潜力的优势;四叶期,磷高效基因型的侧根数、侧根长、根系吸收面积、茎叶干重等性状的受抑制程度均显著低于磷中、低效基因型,而地下干重、根冠比却受到了较中、低效基因型更强的诱导作用。
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Tion at two-leaf stage,and morphological indexes and physiological indexes of Plug seedlings were measuredand analyzed after treatment.The results indicated that all the treatments did positive effects for improving theseedlings quality compared to control whether in summer or in autumn,and treatment of 200 mg/kg CCC wassignificantly increased in root-shoot ratio,seedling index,root activity,soluble protein and decreased in height,compared to control in summer,while treatment of 100 mg/kg CCC+0.1mg/kg BR was significantly increasedin root-shoot ratio,seedling index,chlorophyll,soluble sugar and decreased in height compared to control inautumn.
结果表明:夏季各处理与对照相比均有不同程度的壮苗效果,其中单独施用200mg/kg CCC的秧苗效果最好,与对照相比,株高显著下降,根冠比增加,壮苗指数显著升高,G值提高,根系活力增大,叶绿素显著增加,可溶性糖显著提高;秋季各处理也均利于提高秧苗质量,其中施用100mg/kg CCC+0.1mg/kg BR的秧苗壮苗效果最好,与对照相比,株高显著降低,根冠比显著增大,壮苗指数上升,G值显著增加,根系活力增大,叶绿素总量和可溶性糖都显著增加,可溶性蛋白有所下降。
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The roots of spring-sown maize and summer-sown maize could touch with each other in relay-planting system, which made the roots competed for water and nutrition. Thus, more of the water and nitrogen in those soil layers were used, which led to the decrease of water and nitrogen in those soil layers.
玉米根系数量和TTC还原总量在剖面分布上均发生交叉,春、夏玉米间存在养分与水分的竞争,使根系所达到的区域土壤养分和水分利用量增加,从而使相应土层土壤全氮含量和水分含量下降。
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Results showed that NBPT mixed proportionally with urea increased the soybean root vigor, root nodule number and weight, the root nitrogen fixation activity,and therefore the root growth was increased by a high content of N in the soybean plant.
结果表明,NBPT提高了大豆整个生长期的根系活力,对根瘤固氮酶活性有促进作用,根瘤数量和重量都有增加,因而大豆植株的含氮量也随之增加,根系生长得到促进。
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Root system is sturdy develop, give birth to root nodule closely, the errant bud on its root recovery capability is strong, can make root system spreads to horizontal way.
根系粗壮发达,密生根瘤,其根上的不定芽再生能力强,能使根系向水平方向蔓延。
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For example, exogenous REs, induce the extent of changes in root growth, root enzyme activities and root cell membrane permeability.
如施用不同剂量RE条件下,稀土元素与根系的相互作用使根系生长、酶活性、细胞质膜透性等受到不同程度的影响。
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At growth period of Moso bamboo, because the root has not grown completely and has little influence on rhizosphere soil, so the score was the highest. The score of rhizosphere soil decreases as the growth and root gradual development of Moso bamboo. The rhizosphere soil quality increased at later stage of Moso bamboo because of gradually weakened growth and the increased litter and microorganism activity.3.The demands for nutrients of Moso bamboo at different growth periods were different. It was different in the demand for nutrients of Moso bamboo at different growth period.
成竹期由于根系未完全形成,对其根际土壤的影响较小,因而成竹期得分最高,随着毛竹生长,根系渐渐发达,对其根际土壤的影响日渐扩大,造成根际土壤得分渐低,后期毛竹生长逐渐减弱,对其根际土壤的影响也随之减少,加上林中凋落物的增加和微生物活动增强,其根际土壤的质量有所增加。3、不同生长阶段毛竹对营养元素的需求有所不同。
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Root soils of Vitis vinifera cv. Cabernet sauvignon grapes of 4 and 8 years old in Yangling region vineyards were taken as samples; and the methods of plate culture and selective medium were used to culture and separate soil microbes. Then the microbes separated from different regions were counted and classified.
以陕西杨陵4年生和8年生赤霞珠葡萄的根系土壤为试验材料,利用平板培养法和微生物选择培养基进行培养分离,采用梯度平板涂布法计数,对葡萄根系土壤中的7种目标微生物(细菌、真菌、放线菌以及4种细菌生理群)在不同区域、不同层面的分布和数量进行比较、分析。
- 推荐网络例句
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Fancy gold-plated dangling earrings with facetted White Opal crystals.
花式镀金悬垂耳环与facetted白欧泊水晶。
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This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.
本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。
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In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).
在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。