meta user
network profile
| bio | website | openwetware.org/wiki/… |
|---|---|---|
| location | Urbana, IL | |
| age | ||
| visits | member for | 1 year, 5 months |
| seen | May 2 at 21:04 | |
| stats | profile views | 16 |
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Mar 6 |
comment |
What controls leaf senescence in deciduous tree species, and how can I predict it? there was a related question on stats.SE (about modeling bud burst) stats.stackexchange.com/q/9797/1381 |
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Dec 22 |
awarded | Yearling |
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Sep 30 |
comment |
Are there any substance that are more dangerous at low dose than at higher dose? thanks for the clarification; as written it can be interpreted as "homeopathy" doesn't work, except when it does. On another note (more as a clarification for readers than as a correction to you) the GMO study is a poor example to use. Because of the many flaws, any inference is limited (e.g. my primary conclusion is that there is insufficient information to conclude anything about the relationship dose-response relationship). |
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Sep 30 |
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Are there any substance that are more dangerous at low dose than at higher dose? Example of something always reactive no matter the dose? |
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Sep 30 |
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Are there any substance that are more dangerous at low dose than at higher dose? sugar, water, protein, ... these all have an optimal range of healthy doses- too much OR too little can be harmful. |
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Aug 21 |
comment |
List of species recently found of economic value Perhaps the Biofuel Ecophysiological Traits and Yields Database would be of some help? |
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Aug 1 |
comment |
What is the effect of a pure-oxygen environment on a plant? If the plant is potted, thre could be co2 from the soil, as well as from plant respiration. But at such high o2, photosynthesis would be inefficient. |
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Jul 9 |
comment |
How deep in the soil can a seed be placed and still develop into a plant/tree? there is no single mathematical relationship, but I have tried to provide a general answer please let @richard or I know if you have further questions |
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Jul 5 |
revised |
How deep in the soil can a seed be placed and still develop into a plant/tree? deleted 1 characters in body |
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Jul 5 |
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How deep in the soil can a seed be placed and still develop into a plant/tree? @RichardSmith Thanks for looking it over. I just wanted to make sure I didn't miss anything obvious. |
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Jul 5 |
revised |
How deep in the soil can a seed be placed and still develop into a plant/tree? added 91 characters in body |
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Jul 5 |
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How deep in the soil can a seed be placed and still develop into a plant/tree? nice answer. I'd appreciate your opinion of mine. |
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Jul 5 |
answered | How deep in the soil can a seed be placed and still develop into a plant/tree? |
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Jul 5 |
comment |
How deep in the soil can a seed be placed and still develop into a plant/tree? TL;DR 1) yes, 2) depends on species, soil, climate, 3) yes |
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Jul 2 |
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Is Homo sapiens the only species capable of prioritization? Animal behavior is not my field but I think the answer is "no, animal feeding / foraging shows optimization of the cost / benefits of finding and capturing different foods / prey", an ecological 'paradigm' as explained here notes.utk.edu/bio/greenberg.nsf/… |
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Jun 28 |
revised |
Do all plants photosynthesize with equal efficiency? added reference values from Zhu et al 2008 |
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Jun 27 |
suggested | suggested edit on Do all plants photosynthesize with equal efficiency? |
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Jun 27 |
comment |
Do all plants photosynthesize with equal efficiency? Yep, you are correct, I read a good bit of the article, but when it came to writing down the numbers I just grabbed them from the Abstract where they are called "maximum conversion efficiency of solar energy to biomass", in the text they explain that this is the theoretical max. The numbers you give are short term max reported values (for the record, the C3 value is 3.5%, second line of p 157). I changed your answer. |
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Jun 27 |
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Do all plants photosynthesize with equal efficiency? Zhu et al, 2008 provide a review titled "What is the maximum efficiency with which photosynthesis can convert solar energy into biomass?" in the Journal Current Opinion in Biotechnology. |
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Jun 27 |
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Do all plants photosynthesize with equal efficiency? According to Zhu et al,, 2008 the maximum observed conversion of photosynthetic energy to biomass is 6% at 30C. I am not sure why there is a discrepancy, but Wikipedia has no citation nor reference temperature and Zhu et al do not consider CAM plants or algae. |
