Dear all
We are trying to study the optimal nutrition for mango cultivars under local conditions.
In most crops ,it is costumed to measure fruit load and constitutes, soil analyses and leaf mineral analysis.
However in Mango the leaves are located on the tree for up to three years, therefore in Israel it is seldom analyzed. How can we measure the content of nutrients in Mango leaves? by which procedure do select the leaves for analysis and are there standard values that can be applied?
Thank you very much
Please check the article on
Nutrient contents in Tommy Atkins mango leaves at flowering and fruiting stages by LEANDRO N.FARIA
Dear Dr. Nativ Rotbart
Kindly see also the standardized method:
Pathak, R.A.; Pandey, R.M. (1976). Sampling for mineral content in leaves of mango cultivar ‘Dashehari’ 5(3), 255–264. doi:10.1016/0304-4238(76)90090-X
Dear,
I recommend reading these two files, below.
They are for mango trees grown in semi-arid regions
https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452007000200035
https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452007000200035
https://www.hindawi.com/journals/jchem/2018/6869294/
check this out.
Bryson et al Plant Analysis Handbook 3rd Edn, provide a table of 12 elements for "15 mature leaves from new growth" for mango. These are only sufficiency range results, and it doesn't report where the mango trees were grown, so it might not be applicable to your location. The paper(s) suggested by Luan dos Santos Silva give quite good information on sample sizes required.
All the papers I glanced at reported washing the leaves. This has benefits (removal of solid particulate contaminants soil/dust/ash etc), but can also add contaminants (dissolved salts from the water, detergents etc), and in severe cases, remove soluble elements from the surface layers. A pilot study testing any washing procedure may be needed to check you aren't creating a problem that is not really there.
The issue mentioned by Matthew Wheal is pertinent. Nutrient losses can actually occur with washing, as shown in the article below.
Article Deciduous tree leaves in trace elements biomonitoring: A con...
Perhaps a study with different types of water is necessary, such as distilled, deionized and ultra pure.
Luan dos Santos Silva I think i didn't understand your answer. First of all Mango is not Deciduous and doesn't perform as such. secondly, why should we study water types as distilled, deionized and ultra pure ? for what purpose?
Correct, the leaf of the hose is not deciduous. I used this article only to show the difference between washed and unwashed vegetable tissue in nutritional analysis.
However, the distillate is widely used for such purposes.
I only proposed a new research with the types of water, because due to the different degrees of purity there may be some that vary less the contents of the nutrients.
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