1) Corn spider mite
玉米叶螨
1.
Corn spider mites have become the chief pest in corn production of Shanxi province.
受多种因素影响,近年玉米叶螨在我国北方地区为害逐年上升,已成为山西玉米生产的首要害虫。
2) corn-bract
玉米苞叶
1.
Study on the extracting craft of flavonoids in corn-bracts with ultrasonic and colorimetry, the best distilled conditions were: the ultrasonic power 700W, the extracting temperature 60OC , the proportion (mL/g) of materials 1 : 50, the concentration of ethanol 60%, the extracting times 35min, the most rate of total flavonoids 1.
运用超声波技术提取玉米苞叶中总黄酮,并用亚硝酸钠—硝酸铝比色法测定总黄酮含量, 得出提取玉米苞叶总黄酮最佳工艺条件:超声波功率700W,提取温度60℃,料液比(g/mL)1:50, 乙醇浓度60%,提取时间35 min,玉米苞叶中总黄酮最大提取率为1。
3) Corn bract
玉米苞叶
1.
Corn bract reduces the leukocyte apoptosis and CD_(44) expression in rabbits with atherosclerosis;
玉米苞叶降低动脉硬化家兔白细胞凋亡及CD_(44)表达
2.
Results:Corn bract could reduce the levels of serum TC,TG,VLDL as compared with the model group.
目的:观察玉米苞叶煎剂对食饵性高血脂大鼠主动脉内皮细胞凋亡的干预作用及血清NO、ET水平的影响。
4) corn leaf
玉米叶片
1.
Morphology measure and 3D reconstruction of corn leaf based on machine vision;
基于立体视觉的玉米叶片形态测量与三维重建
2.
Through close observation and research on the morphological formation, as well as growth rules of corn leaf, and combined with some knowledge in agriculture the mathematic model for changes on morphology in corn leaf was brought forward.
为了更好地进行玉米叶片几何造型模拟,基于对玉米叶片形态建成过程的观测研究,首先提取了玉米叶片形态结构和形态建成过程的主要特征,然后构建了参数化的玉米叶片几何模型。
5) maize blades
玉米叶片
1.
The mathematical model of maize blades was established by analyzing the actually measured data.
本论文通过实际测定的玉米型态数据,采用数值分析方法进行数值模拟,建立了玉米叶片及植株形态的数学模型,并应用模型绘出了叶片主脉及边缘的三次样条拟合合成效果图。
6) corn leaves
玉米叶片
1.
The results showed that:(ⅰ)in a specific range of water stress ,peroxidase activity in corn leaves increased with the decline of soil water content,however,enzymatic activity decreased when the water stress was overwhelmed;(ⅱ)there was variation of enzymatic activity of corn leaves grown in dry red soil and ve.
结果表明 :①在一定的水分胁迫范围内 ,玉米叶片的过氧化物酶活性随着土壤含水量的降低而升高 ,但过度胁迫时 ,酶活性降低 ;②随着土壤含水量降低 ,燥土和变性土上生长的玉米叶片的酶活性的变化规律略有差异 ,这与二者的土壤物理性质有关 ;③施肥处理 [T (N 10 0mg+P2 O5170mg +K2 O 6 0mg/kg干土 ) ;Z (NPK +Zn10mg/kg干土 ) ;M (5 2 g干牛粪 /kg干土+NPK) ]和栽培方式对玉米叶片的酶活性有影
补充资料:桑始叶螨(mulberry mite)
桑始叶螨(mulberry mite) 吮吸桑叶汁液的害虫之一,蜱螨目,叶螨科,学名为Eotetranychus suginamensis Yokoyama,别名桑红蜘蛛、桑东方叶螨。 成虫体小型,橙黄色,雌虫长约0.4mm,后部钝圆;雄虫长0.35mm,后部瘦削。体躯分节不明显 ,背面隆起,腹面扁平,口器刺吸式。前体部背面有两对红色球状单眼和3对刚毛,后体部着生刚毛5横旬。雌成虫分布为3、2、2、2、1对,共20根;雄成虫分布为3、2、2、2、2对,共22根。卵球形,直径0.1mm,初产时无色透明,后渐变为淡黄色。卵孵化后称幼虫,体圆形淡黄色,仅有足3对。 桑始叶螨一年发生10余代,以成虫在枯枝落叶上或枝干裂隙或杂草上越冬。翌年春芽萌发即开始活动,移集叶背,沿叶脉交叉处吐丝结网,并在其中取食产卵,经一周左右孵化,再经2-3次脱皮,变为成虫。卵发育温度8℃,最适25-26℃,湿度为60%。 中国的浙江、贵州、四川等省常见成灾,江苏也有。春初开叶时,主要是越冬成虫在叶背沿叶脉吸食,被害处呈半透明白斑,后逐渐变黄脱落。 保持桑树桑地清洁,对枯枝落叶杂草应及时清除,以消灭越冬成虫;在发生季节,可用波美0.2-0.4度的石硫合剂、80%敌敌畏1000-2000倍液、20%乐果500倍液或20%三氯杀螨醇5000倍液进行喷布,也可喷洒清水以抑制虫口。 |
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