Abstract:
The present experiment was carried out to determine the role of mycorrhizal
fungi on growth and nutrient uptake by different agricultural crops in arsenic
amended soil. This experiment was also performed to know the mycorrhizal
status of crops collected from different arsenic affected area of Pabna district.
Five crops viz. Tomato, Okra, BrinjaJ, Chili, and Danta were grown in arsenic
amended soils with or without mycorrhizal inoculation. Three levels of arsenic
concentrations (1Oppm, lOOppm and 500ppm) were used. At higher
concentration of arsenic, the seed germination was affected more than the other
treatments. In case of all the five crops; Tomato, Okra, Brinjal, Chili, and
Danta the germination percentage, plant height, shoot height, root length,
number of leaves, both fresh and dry weight of shoots and roots, mycorrhizal
foot colonization, percent vigor and the amount of chlorophyll were higher in
AMF inoculated plants in comparison. to the non inoculated plants and
decreased significantly with the increase rate of arsenic concentrations. Less
arsenic content and higher nutrient uptake were recorded in mycorrhiza
inoculated plants.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka
in Partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
PLANT PATHOLOGY
