A horticulturalist decides to increase the pohotosynthetic rate in her tomato plants in a green house by increasing light intensity. Formulate a hypothesis for the observed result and plan and design an experiment.
2007-03-07 11:50:29 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Since 'you', and not the horticultarist is doing the experiment --> you CAN kill the tomato plants...
Rate of photosynthesis can be measured as oxygen produced like when u grow a water plant to trap the amount of oxygen...but the problem is tomato plants cannot be grown underwater...
We know that photosynthesis produces sugar for plant growth. When the plant produces sugar, the plant would have an increase in dry mass...
So you can take dry mass as a measurement of photosynthetic rate. To take the dry mass, you have to take the entire tomato plant out, wash away the soil. Then heat the plant in an oven, then weigh it and heat it again until the mass is constant --> meaning all water inside it has vaporised...
Plant different sets of tomato plants in different light intensities...After some time, like 1 month, measure the average dry mass of each tomato plant from each set and record your results...
Should be the greater the light intensity, the higher the dry mass. But a too high light intensity that cause bleaching of chlorophyll may have an adverse effect...
2007-03-07 12:59:57 · answer #1 · answered by lam_tensai 2 · 0⤊ 0⤋
I'm a patented inventor= but I'm not into horticulture but I will tell you plants need light to grow= If you use light 24 hours a day and add water you'll have twice the tomatoes because as is plants stop growing when darkness comes, but if its lit 24 hours you'll have twice as much when tomatoes develope.
2007-03-07 20:07:45 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I could. I choose not to.
2007-03-07 19:57:24 · answer #3 · answered by Oliver T 3 · 0⤊ 1⤋
you should be doing your homework yourself
2007-03-07 20:13:53 · answer #4 · answered by NachtEngel 1 · 0⤊ 1⤋