A plants volatile organic compound (VOC) composition is the hand that swats unwanted visitors‚ welcomes visitation from much needed pollinators‚ and the substantial determinant in a plants identity and overall evolutionary fitness within the plant community. Understanding the mechanics of volatile formation is essential in interpreting their importance in plant life‚ and in plant-animal interactions. A huge allocation of energy is assumed to be given to the production of volatiles‚ and is therefore
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Contents * Introduction of Pot Marigold/s * Scientific Name * Climate * Mode of Reproduction * Varieties * Benefits to Human and Ecosystem * By Products * Facts Introduction of Pot Marigold Pot Marigold is a plant in the genus Calendula of the family Asteraceae. It is probably native to southern Europe‚ though its long history of cultivation makes its precise origin unknown‚ and it may possibly be of garden origin. It is also widely naturalised further north
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properties that affect the growth rate of plants in different ways. These properties may be the wavelength of the music‚ its frequency or even its tempo. According to a study conducted by Margaret E. Collins and John E. K. Foreman‚ entitled The Effect of Sound on the growth rate of plants (2001)‚ plants growth is directly affected by sounds of varying frequencies. They observed that when plants are exposed to pure tones‚ it affects the growth of the plant. This was due to the transverse wave which
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Q1.(a) When a seed starts to grow‚ the young root grows downwards towards gravity. The young shoot grows upwards‚ away from gravity. (i) Name this type of plant response to gravity. ............................................................................................................... (1) (ii) Give two reasons why it is useful for a young root to grow towards gravity. 1 .......................................................................................................
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Lower Vascular Plants Lower vascular plants include divisions Lycophyta‚ Sphenophyta‚ and Pterophyta. Division Lycophyta includes club mosses and ground pines. Sporophytes of these have stems covered with small‚ scaly leaves. Sporangia appear on the upper surface of the leaves and are structures that produce spores. Lycopods have small leaves that each contains one vein that brings water to the leaf from the roots and carries away extra food. Division Sphenophyta is made up of horsetails or scouring
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The transfer of trace elements between soil and plant is part of chemical element cycling in the nature. The mobility and availability of trace elements are controlled by many factor of Climatic‚ biological and geochemical origins in nature. That means‚ to predict the uptake of trace elements by plants from soil it is important to look at several biotic and abiotic parameters the affect and control the behavior of elements in the soil. The risk to environment and human health of a given trace metals
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to be rather slow as very little growth could be observed. After the several days of being under the scorching sun the leaves of the tomato plants started to dry up and would fall off at the very touch of it. More water had to be added to them to further hydrate the plants. It was only after around 30 days that a concrete growth could be observed. The plants grew to a reasonable height and needed to be attached to a bamboo stick so as to remain stable. The growths of the tomatoes themselves were
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environmental conditions affected the rate of transpiration of a plant. The environmental factors we looked at were the affects of various temperatures and different light amounts in the different temperatures. We found that as the temperature warmed up‚ the rate of transpiration was higher. When the temperature was at five degrees Celsius‚ the rate of transpiration was very low. When we took out half of the light source and measured the rate of transpiration in the three temperatures we found the same
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Different Kinds of Paper as Compost on the Height of a Plant Data: Quantitative: Height of Cirtrafortunella microcarpia (inches) | Set up | Start of experiment | Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | A | 23.5 | 23.8 | 24.3 | 25 | 25.4 | 26 | B | 23.5 | 24 | 24.7 | 25.5 | 25.9 | 26.3 | C | 23.5 | 23.5 | 24.2 | 24.9 | 25.4 | 26.2 | D | 23.5 | 24.2 | 24.5 | 25.3 | 25.7 | 26 | Qualitative: Plant | Classification | Overall observations: | A | Control
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secondary. In primary succession plants grow and colonize earth for the first time. In secondary succession plants inhabit and colonize earth that was once inhabited by plants life. A wildfire is one example of secondary succession. When a disturbance in the environment occurs‚ such as a wildfire‚ either part or all of the community is destroyed. The aftermath of the wildfire leaves a barren landscape open to new growth‚ vegetation‚ and re-colonization of plant species (Gurevitch et al‚ 2002)
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