what is the relationship between increasing concentration of co2 and the dry mass of velvetleaf?
439055
What is the relationship between increasing concentration of CO2 and the dry mass of velvetleaf? As CO2 increases, the dry weight of velvetleaf increases. Considering that velvetleaf is a weed invasive to cornfields, how would you predict increased CO2 concentration to affect interactions between the two species?
274237
As mean global temperature increases, the researchers also estimate that respiration will increase significantly. Such increases may lower the future ability of global vegetation to offset carbon dioxide emissions caused by burning of fossil fuels.
489511
Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis .
594416
Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy. ... In the 1960s, the global growth rate of atmospheric carbon dioxide was roughly 0.6 ± 0.1 ppm per year. Over the past decade, however, the growth rate has been closer to 2.3 ppm per year.
159385
The amount of respiration exhibited by leaves and whole plants at any temperature is influenced by the pretreatment temperature. Plants grown at 10°C typically show higher dark respiration rates than plants grown at 20°C.
1130798
['light intensity: light is required for photosynthesis , and plant species have evolved for optimum growth in the light available in their climate or habitat.', 'temperature: ... ', 'moisture levels: ... ', 'soil pH and mineral content: ... ', 'wind intensity and direction: ... ', 'carbon dioxide levels for plants: ... ', 'oxygen levels for aquatic animals:']
592222
Droughts, tropical storms, heatwaves and fire weather are increasing in severity and frequency because of climate change. This will continue to result in increases in forest losses, contributing to more and more carbon dioxide being released into the atmosphere.
943175
Calculate a) Gross calorific value, moist basis b) Net calorific value, dry basis c) Net calorific value, moist basis d) Gross calorific value, dry basis using Dulong formula. = 32060.2 KJ/Kg NCV = GCV – 24.44(9×%H + %M) = 30630.26 KJ/Kg Thus NCV = 0.955 times GCV in this case.
153762
Just as trees and vegetation are sources of atmospheric carbon dioxide when they decay, they are a sink for carbon dioxide as they grow. During photosynthesis, trees and vegetation absorb CO2 from the air and emit oxygen. Humans can also add to this carbon sink through such efforts as reforestation.
1032963
Specifically, we aimed to test the hypothesis that the larger the leaf is, the faster the leaf water loses, because, compared to small leaves, large leaves have more surface area for the loss of water through transpiration.
1160402
In general, the more carbon dioxide that is available to the plant, the faster the rate of photosynthesis. The relationship between CO2 concentration and photosynthesis can be expressed by a mathematical equation: f(CO2)=(CO2 – γ) / (CO2 + γ + KCO2) * (CO2ref + γ + KCO2 ) / (CO2ref – γ).
627315
['External factors. ... ', 'Precipitation. ... ', 'Temperature. ... ', 'Atmospheric Humidity (Relative Humidity - RH) ... ', 'Solar radiation (without which life will not exist) ... ', 'Wind velocity. ... ', 'Atmospheric gases on plant growth. ... ', 'Soil moisture.']
1368728
['Light intensity.', 'Carbon dioxide concentration.', 'Temperature. It is useful to be able to interpret a graph like the example below.']
930732
Studies have shown that higher concentrations of atmospheric carbon dioxide affect crops in two important ways: they boost crop yields by increasing the rate of photosynthesis, which spurs growth, and they reduce the amount of water crops lose through transpiration.
375368
Light is absorbed by leaves and differences in surface area exposed to light can change the rates of photosynthesis. Carbon dioxide is absorbed into a leaf through stomates, which are found on its surface. ... Each group should receive the same 4-5 species of leaves so areas can be compared later in the activity.
1329545
Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply. The rate of photosynthesis is directly proportional to the light intensity until another factor becomes limiting.
282130
['Thick cuticle.', 'Stomatal closure.', 'Reduction in # of stomata.', 'Stomata hidden in crypts or depressions in leaf surface (less exposure to wind and sun).', 'Reduction in size of transpiration surface (lower leaf only).', 'Increased water storage.']