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Essay On Cold Climate

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Analysis of the measurements taken during the experiment resulted in unexpected yet intriguing trends albeit most these trends lacked significance. Hence, we cannot ascertain whether temperature affects the conductance in either H. annuus (sunflower) or N. tabacum (tobacco) plantlets. Based on previous studies conducted on a germane topic, we anticipated that plantlets in a warm climate would possess around 21- 64 % higher mean conductance as compared to those in a relatively cold climate (Seghal et al., 2017). However, the results did not support our prediction. Both H. annuus and N. tabacum plantlets possessed higher conductance in a cold environment relative to a warm environment (Figures 1 & 2). Since statistical analysis determined …show more content…

tabacum can provide a deeper insight into the effects of temperature on the growth of plants that prioritize breadth of leaves rather than height. Results from a prior study conducted on the N. tabacum document that doubling the ambient temperature increased growth by 81% (Seltmann, 1974). Similarly, the control treatment experienced more growth than the experimental treatment proving that tobacco plants spend resources on growth in height as well as broad leaves under warm conditions. Additionally, humidity must have favored tobacco growth because it hindered transpiration. Since tobacco plants in the control treatment expended less energy and resources to replace transpired water, they could have spent their resources on structural growth such as height. Another reason for the increased growth of tobacco plants in warm environments is the retardative effect of cold stress on growth hormone transport such as auxin which is crucial in facilitating both root and shoot growth. Previous studies have presented that decreasing the ambient temperature from 23 ◦C to 4 ◦C reduced auxin transport by more than 50% (Shibasaki et al., 2009). Even though our experiment did not have such a drastic difference regarding temperature, the results of the previous study exemplify the adverse effects of cold environment on plant growth. The experiment’s shortcomings were mainly design flaws and short duration. Variables such as humidity,

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