修剪通过剪除部分树冠而改变根冠比。
修剪通过剪除部分树冠而改变根冠比。
施磷二铵处理的根冠比明显低于不施肥处理和施尿素处理；
Root-shoot ratio is the lowest in the diammonium orthophosphate treatment;
平均生根数、根长、根冠比和根粗均随光照强度的增强而增大。
With the increasing of light intension, number, length and diameter of root and root-shoot ratio were all increased.
中磷土壤中对照根体积大于磷用量最小和最大处理，根冠比也较大。
The other soil contrast root volume greater than the smallest and biggest phosphorus treatment, the root cap is bigger than too.
随品种的演进，抽穗期根重以及根冠比提高，但根系伤流液量减少。
With the improvement of rice cultivars, root dry weight and the ratio of root to shoot were increased, but the amount of root bleeding sap was reduced.
钼提高冬小麦根系的根干重、地上部干重，显著影响冬小麦的根冠比。
The other root parameters of the both cultivars were influenced by molybdenum deficiency.
结果表明：根冠比提高是马尾松对低磷胁迫的一种主动适应性反应机制；
Results showed that the increase of root_shoot ratio was an active adaptive response of P. massoniana to low phosphorus stress.
磷高效小麦基因型的韧皮部蔗糖运输速率和根冠比低于磷低效小麦基因型；
Compared to low P efficient genotype, high P efficient genotype was lower in phloem sugar translocation rate and R/S ratio.
降雨量越大，根系越深、总根长越大、根系直径越大、侧根越多、根冠比越低。
The higher the precipitation, the greater the root depth, total root length and root diameter, the more lateral roots and the lower ratio of root to shoot.
同时，两种基因型在缺钾土壤上的根冠比和主根长仅为低钾溶液培养时的一半左右。
While, the ration of roots and shoots and the length of main root of two genotypes on deficient potassium soil were only half than that in low potassium solution culture.
干旱条件下，土壤深层根系密度、根冠比增加的顺序依次为布鲁克、英派克、苏比纳。
Under drought conditions, the order of 3 varieties in deep soil root density and the ratio increment of root to stem was ranked as follows: Brooklawn, Impact, SupraNova.
结果表明，较高的氮素水平促进根系生长，迅速提高水稻根干重，但同时降低根冠比。
The result is, high N-level can promote the root to grow, but the root cap ratio will comes down.
低磷胁迫增大了植株的根冠比，改变了植株对营养元素的吸收及其在地上部和根系的分配。
Under low phosphorus condition, the ratio of root to shoot in all genotypes increased; uptaking and distribution of p, k, Ca, Mg, Fe, Zn between roots and shoots also changed.
野外应用表明，适当浓度的保水剂可以有效提高土壤保水能力和供水能力，提高苗木根冠比和成活率。
Field studies also showed that proper concentration of polymers could effectively improve water supply and moisture holding capacity, so as to improve the survival rate of seedlings.
从形态特征、根冠比、叶片解剖构造、叶片保水力、水分饱和亏等方面分析了11个树种对干旱的适应性特征。
Using morphological characteristics, root-shoot ratio, anatomical structure of leaves, leaf water holding and WSD analyzed the water holding ability of 11 tree species.
覆草旱作的根冠比(0.116)显著大于常规水稻(0.087)，前者的根系呼吸强度是常规水稻的2.7倍。
Root to shoot ratio of upland rice (0.116) was remarkably bigger than that of paddy rice (0 087). Root respiration rate of the former was 2.7 times of the latter.
对红皮云杉与白扦研究表明，在CO_2浓度倍增条件下，氮素营养供应充足，其他条件不受到限制时，植物的根冠比不受到大气CO_2浓度升高的影响。
The study showed that under the double CO2 concentration, sufficient nitrogen, and no other condition stress, the ratio between root and crown can not be affected by elevated CO2 concentration.
结果表明，在缺锰条件下，津强1号的株高、根冠比、穗重、干物质量等指标所受影响均比辽春10号大，而且光合产物糖和氨基酸的形成以及蛋白质合成过程的受阻程度也比辽春10号重。
The result shows that the effects of manganese deficiency on the height, the root-shoot ratio, the spike weight, the dry weight of Jinqiang-1are more significant than those of Liaochun-10.
结果表明，在缺锰条件下，津强1号的株高、根冠比、穗重、干物质量等指标所受影响均比辽春10号大，而且光合产物糖和氨基酸的形成以及蛋白质合成过程的受阻程度也比辽春10号重。
The result shows that the effects of manganese deficiency on the height, the root-shoot ratio, the spike weight, the dry weight of Jinqiang-1are more significant than those of Liaochun-10.
应用推荐