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Questions related from Saeid Davazdahemami
for example some bee can recognize some gums on plants and can know them from other kinds of gum
10 October 2016 2,863 7 View
fungi, pests, dodder, etc can change quality /quantity of substances? how much? always, are these changes negative?
08 August 2016 5,007 0 View
some traditional material are obtained from dodder, orbanch, etc. are these things change by changing host?
08 August 2016 3,765 0 View
we know each variety lose some characters during years. some of these traits are very important for us, such as yield, essence, resistance to pests, etc. how long are these characters fix?
08 August 2016 4,663 6 View
what is price of leech?
01 January 2016 8,108 3 View
i need scientific and modern method.
01 January 2016 8,922 3 View
carnelian, onyx and agate and other valuable minerals, has positive effect on our health. traditionally. do you agree. is there any scientific study?
01 January 2016 2,428 3 View
"250000-300000 species" is correct?and what about cultivars/varieties?
11 November 2015 9,213 2 View
Herbal and orthodox medicine
11 November 2015 2,351 3 View
can we provide a descriptor for essential oils color in one family/genus?
09 September 2015 5,817 0 View
some components have different isomers in plants( L or R or other kind of isomers). can we say for example Ls are more effective?
07 July 2015 5,252 1 View
i have a huge number of medicinal pictures and i want to publish them. is there any press in your country?
07 July 2015 1,796 4 View
zn and cd compound have antagonists effects and some material have synergetic effects.
06 June 2015 2,305 1 View
when we provide honey herb, we only want to change taste or color? or we have some extra medicine goals?
05 May 2015 7,763 2 View
can we use these words similarly?
02 February 2015 4,141 7 View
In some religious texts we can see some orders to keep health, they are very ancient. can we say some of our information of traditional medicine are religious originated?
02 February 2015 4,129 1 View
sometimes we can see a wide ranges of color(from light to dark)in one type of essence. for example in thymus daenensis( yellow to orange). can we consider this parameter as a sign of quality...
01 January 2015 4,029 3 View
sometimes, when damask rose attar is used, the hairs of surface are whitened faster than usual? do you know any thing/reference?
01 January 2015 6,608 4 View
Extraction by means of pressing, heating, solving in solvents etc, which one has best efficiency?
01 January 2015 8,044 16 View
are there any vital difference between these two traditional methods?
01 January 2015 1,794 0 View
if we want to compare herbal drugs with precious metals, are there any references?
01 January 2015 1,173 10 View
we have a list of yield/ ha for majority of the agricultural crops? are there any list for essential oils yield/ ha in the world? do you know which plants produce max?
01 January 2015 8,560 1 View
which plant component is the most powerful poison? what is it's LD50? are there any ancient uses for it?
01 January 2015 4,955 3 View
What are strategic plants in new world? food, drugs, fiber, etc are very important for human and also plants that produce them. do you think the list of strategic plants must be changed?
01 January 2015 588 1 View
In order to obtain certain material we can produce certain plants( which contain that material) or can search different kinds of sources in various plants. In your opinion which way is more...
01 January 2015 9,773 7 View
in medicinal plants field we can change WUE( water use efficiency) by using effective material instead of dry matter.
01 January 2015 6,100 3 View
according to which criteria we can call some material " volatile components"?
01 January 2015 2,208 7 View
In traditional methods we can see some plant latex in drugs.
01 January 2015 9,563 8 View
the ratio of petal/flower is less. therefore, extraction of essence will be economic, when quality of petal essence be more than flower (sepal+petal) essence
01 January 2015 5,454 2 View
we have some examples which indicate active substances( percentage and yield/m2) increase in normal condition., but generally, active substances are increased under stress condition.
01 January 2015 803 13 View
Seeds of Viola odorata germinate hardly and we have low emergency in the field. we can propagate it via stolon.Can anyone say a good experience to increase seed germination percentage?
01 January 2015 4,992 11 View
Are there any valid protocols? We can't propagate via stem cutting and seed.
01 January 2015 3,172 9 View
Do you know anything about cohesive liquid in sumach stem(when is cut)?
01 January 2015 5,593 0 View
some essential oils such as Levisticum spp. and eryngium spp. are heavy and we gathered them in the bottom of clevenger apparatus. what are other plants
12 December 2014 483 24 View
for providing enough oxygen in inside of house we need some pot plants or other kinds of green surface. each plants produce o2. how much can it?
12 December 2014 9,773 0 View
Sometimes we have some unsuitable material in biomass of plants. Such as pyrolizidine(alkaloid) in Borage family
12 December 2014 8,440 3 View
Do we need T0 in order to calculate GDD ? We don't have any list for medicinal plants.
12 December 2014 4,995 0 View
Sometimes we can change some components in plants by simple method in library or store instead of hard action in the farm. Is there any paper to describe these methods?
12 December 2014 9,320 3 View
We need to provide a good variety of turmeric for planting them in a greenhouse.
12 December 2014 554 3 View
without a standard pharmacopia, each country provide different list of medicinal plants.
09 September 2014 5,679 4 View
