Duy Minh Pham

5 Questions 11 Answers 0 Followers

Questions related from Duy Minh Pham

What kind of statistical and post hoc test should I use to analyse survival rate?

Example experiment: I spray a chemical with 3 concentrations on some plants and record their survival rate. The result is as followed: Concentration (mg/l)...............Survival rate (3...

01 January 2019 3,212 7 View

What are physiological indication parameters (not gene expression) of circadian rhythm in plant that we can measure?

Some plants fold and unfold their leaves following their inner circadian rhythm, which can be used as an indication parameter. But many plants do not have this characteristic. I read in some...

09 September 2018 1,427 0 View

Why does quantum yield differ among light wavelengths (aka the mechanism of quantum yield spectrum)?

I have learned that the excitation of chlorophyll by light is on a photon basis: each photon excites one electron from the chlorophyll molecule, regardless of wavelength. So how does the quantum...

08 August 2018 4,539 11 View

How to measure free phosphate (Pi) content in leaf tissue?

I followed several papers using ammonium molypdate method but there was precipitation and the results were inconsistent. The protocol is as followed: - Extract freeze-dried leaves with HClO4 10%,...

10 October 2016 1,764 12 View

What is the limit for standard deviation of starting material in biological experiment?

I am doing an experiment using tomato seedlings. The plants used as starting material for the experiment are chosen as uniformly as possible from a larger population of seedlings. As the standard...

07 July 2016 7,388 3 View