1) nymphal density
若虫密度
1.
Effects of nymphal density and rice growth stage on nymphal development, survival rate and wing dimorphism of different rice brown planthopper biotypes;
若虫密度和水稻生育期对稻褐飞虱不同生物型若虫历期、存活及翅型分化的影响
2) nymph
[英][nɪmf] [美][nɪmf]
若虫
1.
Properties of esterase from different instars of Oxya chinensis nymphs;
中华稻蝗若虫不同龄期酯酶的特性
2.
Correlation between 20-hydroxyecdysone levels and cuticulogenesis in nymphs of Haemaphysalis longicornis;
长角血蜱若虫发育期20-羟基蜕皮酮含量变化与表皮发生的关系
3.
Taxonomic study on nymphs of Delphacidae (Homoptera:Fulgoroidea) from China Ⅱ Sogatella;
中国飞虱科若虫分类研究Ⅱ白背飞虱属(同翅目:蜡蝉总科)
3) nymphs
[英][nimf] [美][nɪmf]
若虫
1.
Threshold temperature and effective temperature of grape variegated leafhopper, Zygina apicalis nymphs in Xinjiang;
新疆葡萄斑叶蝉若虫的发育起点温度和有效积温
2.
Taxonomic study on nymphs of Delphacidae(Homoptera:Fulgoroidea)from China Ⅲ Arcofacies,Tropidocephala and Belocera;
中国飞虱科若虫分类研究Ⅲ.梯顶飞虱属、匙顶飞虱属及簇角飞虱属
3.
Cocoa planthoppel nymphs distribution pattern and sampling technique research
可可广翅蜡蝉若虫空间分布型及抽样技术研究
4) larval density
幼虫密度
1.
To investigate the effect of larval density on post-embryonic development and adult reproduction of Spodoptera exigua,we conducted a laboratory experiment in which larvae were reared at different larval densities(1,5,10,20 and 30 larvae/jar).
为了研究甜菜夜蛾Spodoptera exigua(Hbner)幼虫的密度对其发育及繁殖的影响,本实验观察了5种幼虫密度下(1,5,10,20,30头/瓶),幼虫发育和成虫繁殖情况。
2.
This paper mainly dealt in details with the effects of host plants and larval density on the development and production, and the pupal cold-hardiness of H.
本文首次较系统的研究了寄主植物对美国白蛾实验种群和自然种群基础生物学的影响,幼虫饥饿和幼虫密度对美国白蛾生长发育和繁殖的影响和美国白蛾不同时期蛹的抗寒能力变化。
5) population density
虫口密度
1.
Relationship between the number of resin exits caused by Hylobitelus xiaoi larvae and their mean population density in slash pine plantations;
萧氏松茎象流脂点与虫口密度的关系
2.
Correlation between the attacking rate and population density of Hylobitelus xiaoi larva;
萧氏松茎象幼虫有虫株率与虫口密度相关关系
3.
Influence of pruning on the population density of Ceroplastes japonicus and growth of trees;
修枝对日本龟蜡蚧虫口密度及树木生长的影响
6) scale density
蚧虫密度
1.
The results show that in polluted areas the scale density and its host plant s nutritional level were higher than that in the clear areas.
在污染区和清洁区,对瘤坚大球蚧密度和其寄主国槐树体营养(总糖、可溶性蛋白质、氨基酸、VB2)研究发现:污染区蚧虫密度和寄主营养水平均高于清洁区。
补充资料：非密度制约因素(见密度制约因素)
非密度制约因素(见密度制约因素)
l焦非密度制约因素见生态因素、密度制约后
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条