不同置种方式对玉米种子发芽的影响

为了解不同置种方式对玉米种子发芽试验结果的影响,本试验设置胚面向上,胚面向下,果柄向下,果柄向上,胚面斜向上,胚面斜向下等6种置种方式,对玉米种子的发芽势、发芽率、发芽指数、平均发芽率等指标及幼苗株高、干重和鲜重进行了统计分析。结果表明,不同置种方式对种子发芽试验的结果有影响,尤其是发芽初期的试验数据差异显著,其中果柄向上置种效果最差,胚面斜向上置种效果最好。建议玉米种子室内标准发芽试验中采取胚面斜向上的方式进行置种,有利于获得整齐一致的幼苗,发芽试验的结果数据可靠、重复性好。

不同置种方式对玉米种子发芽的影响

在6种不同的玉米种子置种方式下,玉米种子呈现出不同的生长状态,特别是在早期玉米幼芽生长阶段存在比较明显的差异。通过试验对比分析可知,不同的玉米种子发芽置种方式对玉米幼芽生长具着不同程度的影响,在具体的置种过程中,应保持一定的置种倾斜度,可以确保玉米幼芽健康生长。

急诊药物中毒洗胃两种置管方式的对比分析

对比急诊药物中毒洗胃时两种不同的置管方式所产生的效果。方法 选择在我院接受洗胃的患者80名作为研究对象,然后将80名患者平均分入对照组和观察组,让对照组的患者采用经过嘴巴置管方式来接受洗胃,同时让观察组患者采用经过鼻子置管的方式进行洗胃,然后再对比两组患者所引发的包括恶心、呕吐和鼻子出血状况等不同的并发症的发生情况。结果从表1的内容可以看出对照组中患者的胃管脱出和其他并发症发生的效率都较低,而且沟通正常的人数一直处于高位。结论 经鼻管进行洗胃的方式值得在临床被推广应用。

BeiDou Integrated Disaster Reduction Application Platform

To better improve the emergency communication and location-based services of disaster information reporting network for serious natural response and relieL disaster emergency the national natural disaster reduction application platform based on BeiDou navigation satellite system is constructed. The administrative distributed platform is integrated with BeiDou positioning and multiple communication ways so as to achieve main disaster reduction application services, including disaster information acquisition and monitoring, emergency relief for trapped people, on-site emergency relief command service, relief supplies＇ transportation monitoring, and disaster information publishing service. By the platform, serious disaster information reporting time may be reduced to one hour and the emergency decision-making information service for serious natural disasters can be effectively improved, and it will be helpful to provide technical references for the industrial application and promotion of BeiDou inte- grated disaster reduction.