Germination and growth of primary roots of inoculated bean (Vicia faba) seeds under different temperatures
Laen...
Kuupäev
2018
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Temperature stress strongly affects legumes,
rhizobia, and the efficiency of legume
-
rhizobia interaction. An experiment in 2016 was developed to test the seed germination in Petri
dishes using different microorganism inoculation under several temperature treatments (4, 8, 12
and 20
°C)
. The goal of t
his study was to test the effect of rhizobium inoculation under low root
zone temperature, and to examine whether the addition of mycorrhiza fungi could enhance
rhizobia resistance to abiotic stress and improve faba bean (
Vicia faba
)
germination. Four faba
bean cultivars were selected for the experiment (‘Lielplatone’, ‘Fuego’, ‘Bartek’ and
‘Karmazyn’). Four different seed inoculation variants were included in this experiment
–
1)
with
rhizobium inoculation; 2)
with a commercial preparation containing mycor
rhiza fungi;
3)
inoculation with both rhizobium and the mycorrhiza fungi preparation; 4) control variant. The
number of germinated seeds, the length of the primary root and the primary root weight ratio were
determined. The effect of inoculation was found
out to be dependent not only on the temperature
treatment, but it also significantly varied between the bean cultivars. Variants where seeds were
inoculated with both mycorrhiza and rhizobia resulted in the highest results (length and weight
ratio of prima
ry roots), comparing with other inoculation variants, regardless of temperature.
Variants where seeds were treated only with rhizobia mostly showed the lowest results
–
both
length and weight ratio of primary roots, especially under treatment of 4
°C
. Faba
bean
inoculation with only rhizobia might not be efficient, when sowing seeds under a low temperature
stress. Inoculation with both rhizobia and mycorrhiza fungi could be a potential solution, when
the root zone temperature is still below the optimal temp
erature.
Kirjeldus
Article
Märksõnad
rhizobia, mycorrhiza, abiotic stress, low root zone temperature, legumes, Vicia faba, articles