Telah dilakukan penelitian mengenai pengaruh pengaruh kalsium, hormon auksin, giberelin, dan sitokinin terhdap pertumbuhan dan perkembangan tanaman jagung. Tanaman jagung yang diberi kalsium dan fithormon dapat tumbuh hingga 232 cm sedangkan tanaman jagung tanpa kalsium dan fitohormon hanya tumbuh hingga 209 cm. Jagung yang dihasilkan dari tanaman dengan tambahan kalsium dan fitohormon memiliki berat rata-rata 200 g sedangkan tanpa kalsium dan fitohormon memiliki berat rata-rata 95 g.

Nowadays, we are entering an era where the internet has become a necessary infrastructure and support that can be applied as a means of regular communication and data service. In these services, cloud-based on servers has an essential role as it can serve numerous types of devices that are interconnected with several protocols. Unfortunately, internet cloud servers become the main target of attacks such as Denial of Service (DoS), Distributed Denial of Service (DDoS). These attacks have illegal access that could interfere in service functions. Sniffing techniques are typically practiced by hackers and crackers to tap data that passes through the internet network. In this paper, sniffing technique aims to identify packets that are moving across the network. This technique will distinguish packet on the routers or bridges through a sniffer tool known as snort connected to a database containing the attack pattern. If the sniffing system encounters strange patterns and recognizes them as attacks, it will notify to the firewall to separate the attacker's original Internet Protocol (IP) address. Then, communication from the attacker's host to the target will be discontinued. Consequently, the identified attack activity will stop working, and the service will proceed to run.

The vehicle velocity monitoring system is an important part of the transportation system. This system is used to conduct monitoring and evaluations so that the quality of the land transportation system can be improved. At present, there are many vehicle velocity monitoring systems. Unfortunately, most of these devices still have to be operated manually, some other devices may have been automated, but it still involves many devices that must be installed, so it is causing problems in installation, maintenance, and repair in the event of damage. In this research, we propose a rule-based cloud system, which monitors the average speed of vehicles passing on the roads that can be used to evaluate the traffic controller at crossroads using the Maps API-Service that accessed via RESTful web services. Longitude and latitude coordinates of the road are inputted into the Maps API-Service than results in distance and travel time data. This data is then developed into other information using the formula and rule-based method to measure the vehicle’s velocity and traffic controller performance. The result of this research produces a cloud-based information system that can measure vehicle velocity and performance of crossroads traffic controllers in real-time and automatically.