The effect of diffrent Concentrations of Auxin on pinto seed stem Research Paper

The effect of diffrent Concentrations of Auxin on pinto seed stem ilongation - Research Paper Example The experiment conducted by students to examine the effects of different concentration of auxin to the growth of pinto beans showed that regardless of the level of auxin used in each experiment, auxin caused retarded growth to pinto bean seeds. Introduction According to Bewley (1057), growth hormones have different effects on plants depending on the nature of the plants, quantity of the hormones used, type of the hormones and the part of the plant in which the hormones are in contact with. This knowledge has enabled those growth hormones or auxin to be used for different purposes in crop husbandry and have enabled plants to react to the external stimuli that would otherwise cause harm to the plant (Lucia, et.al, 153). The student carried out an experiment in order to examine the effect of different auxin concentrations on elongation of the stem of pinto beans. In the experiment, the student selected fifteen beans picked indiscriminately (Thimann, & Lane, 541). The student divided the seeds into three groups of five seeds each and planted each group in a separate pot. The first pot acted as trial experiment and was watered with plain water without any auxin. In the second pot, 500ppm concentration of the auxin was added to the water while in the third pot a different auxin concentration of 500ppm was added to the water used for watering the seed. ... The outcome observation varies from plant to another and depends on the amount of auxin used in each case. Methods In our Plant Independent Investigation, the experiment was set up by labeling three pots, â€Å"tap water†, â€Å"500 ppm auxin†, and â€Å"5000 ppm auxin†. Each of the pots was filled with the same amount of soil (filled 1 inch to the brim). A total of 15 red kidney beans were randomly selected from the seed packet and 5 seeds were planted on each pot. The seeds were buried in the soil with only the tip exposed. The seeds were labeled 1-5 on a piece of tape wrapping around the exterior of each pot. Each pot was watered with 35 ml of tap water. In addition to the tap water, 5 squirts of the 500 ppm auxin were squirted onto each of the 5 seeds in the pot labeled â€Å"500 ppm auxin†. In the pot labeled â€Å"5000 ppm auxin†, 5 squirts of 5000 ppm auxin were squirted onto each of the 5 seeds. In the third pot, only tap water was used and no auxin at all. The team members measured stem growth in plants each day for seven days. The height of stem growth was measured for all 15 plants and recorded in the data table. The plants were watered with 35 ml of tap water daily and given their appropriate solution treatment. The plants in the control pot only received the 35 ml of tap water. The plants in the â€Å"500 ppm auxin† pot received 35 ml of tap water and 5 drops (per seed) of 500 ppm auxin. The plants in the â€Å"5000 ppm auxin† pot received 35 ml of tap water and 5 drops (per seed) of 5000 ppm auxin. For this experiment, a statistical examination was conducted in the form of a t-test (Richard, 63). The t-test compares the growth means of each of the samples to the control (DI water). Therefore, the red kidney bean plants

Rules of Engagement Essay Example | Topics and Well Written Essays - 750 words

Rules of Engagement - Essay Example ROE can be specific or general. Since they were developed, ROE have had large variations between various wars. It should be noted that ROE may be derived from national or regional law in order to be applied in a particular operation. It is designed to ensure victory through disciplined and appropriate use of force (Collins, 2005). This paper will seek to correlate the understanding of ROE with the limited war ideology and its assumptions as they are seen through the experiences and perspective of the six levels in the Vietnam War: individual soldiers in the field; battalion commanders; division commanders; General William Westmoreland; Secretary of Defense Robert McNamara; and President Lyndon Johnson. In the Vietnam War, President Lyndon Johnson made a decision of not mobilizing the National guards because he felt that doing so might signal wrong intentions to the Chinese and Soviets, leading to direct intervention into the war (Moss, 2010). The then Secretary of Defense Robert McNa mara recommended to President Johnson on July 20, 1965, that he should mobilize about 235,000 National reserves and guards. However, the President felt that the war in Vietnam would end within one year and that the soldiers would be needed to be involved in a war in Korea in case it erupts again (Dorschel, 2011). It came to emerge later that the United States failed because it underestimated the scale of the challenges in the war. Also, it failed because it backed undemocratic and unpopular government and failed to gain the approval of the people of America (Schulzinger, 1998). In direct correlation of ROE to the war, it occurred that the ranks of the National Guards swelled at the same time as the resentment of the active army. The active army started to view the Guards as dodgers. The period after the Vietnam War witnessed the beginning of the Total Force Policy era which saw the active army treating the National Guards with indifference and bias (Moss, 2010). What became clear wa s that the Guard infantry soldiers were able to rise to the occasion as required by ROE and completed their missions successfully (Logevall, 1999). ROE requires that the employment of National Guard combat units should be done by the combatant combatants for planning and requesting their participation in the campaign. The National Guard is the Army’s reserve force. They are trained and are always ready for deployment to areas of operations and can also assume the departing active units’ role. The Active Army is made up of 33 combat bridges (Moss, 2010). In the Vietnam War, General William Westmoreland commanded the United States’ military operations during its height from 1964 to 1968 (Dorschel, 2011). Later on, he served as the Chief of Staff of the Army. In accordance to ROE, General Westmoreland expressed optimism in his public statements regarding the war; he reported that American ground and air forces were wearing down the Army of the North Vietnam (Schulz inger, 1998). It should be pointed out that ROE relates ideology with international or aggressive actions. It is against this background that the American foreign policy during the war was aimed at pushing the American’s mission, and particularly safeguarding its security interests in the international arena (Collins, 2005). Ideology served to define the legitimacy of the action, as well as defining what