Stephen Oyedeji

6 Questions 20 Answers 0 Followers

Questions related from Stephen Oyedeji

Why do Chl. a/b ratios increase in stressed plants?

It is true that chlorophyll synthesis in plants decrease with increasing levels of stresses including salt stress, acid rain, air and soil pollution and drought stress. How do one explain the...

13 April 2024 7,097 3 View

Aside Lipton, can I use other brands of green and rooibos teas for tea bag index?

I have used Lipton brands in the past for tea bag index (TBI) and rates of organic matter decomposition. I ran out of stock with the brand and want to know if other brands can be used.

05 December 2023 6,124 5 View

Does anyone know this grass species?

The grass is creeping, with tough stems rooting at nodes and forming a dense turf cushion. I thought it could be Brachiaria but did not get any voucher specimen with semblance in herbaria around....

12 May 2015 351 18 View

Does anyone know the appropriate equations for Chlorophylls a, b & total chlorophyll extracted with 100% acetone & absorbance read at 646 nm & 663 nm?

Arnon's equations for 80% acetone is common in literature.

24 April 2015 3,445 28 View

Is it possible to have higher concentration of Ferrous in plant samples than the soil from which it was collected?

I took a sample to the laboratory and got a shocking result that shocking result.

08 July 2014 6,052 9 View

Which method is best for extracting chlorophylls a and b into solution?

I want to know the most reliable extractant for chlorophylls a and b.

10 March 2014 270 1 View