Identification of the effectiveness of associative rhizobacteria in spring wheat cultivation
Laen...
Kuupäev
2021
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
The maximum increase in wheat yield (by 67% to the control), associated with a decrease
in the root rot development by 19%, an increase in the productive bushiness by 18%, the spike
weight by 26%, in the grains number per spike by 8% was noted when using the Bacillus subtilis
strain 124-11; the strain effect on leaf diseases was insignificant (2–5%). The plants differed in
the maximum changes (to control) in the total bushiness by 59%, the plants vegetative part weight
by 27%, the flag leaf area by 21%, the pre-flag leaf area by 28%, the roots numbers and weight
by 20% and 62%. After plants treatments with the Pseudomonas fluorescens strain SPB2137, the
wheat maturation period was reduced by 9% (to the control), wheat yield increased by 58% due
to a decrease in the development of root rot and septoria by 18%, the yellow rust pustules area by
44%; the productive bushiness and plant height increased by 25% and 19%, the plant vegetative
weight by 21%, the spike length by 4%. The most expressed protective and growth-stimulating
effect was shown by the Sphingomonas sp. K1B, which caused a maximum decrease (to the
control) in the root rot and yellow rust development by 22% and 7%, the strips length by 22%,
the pustules number in the strip by 29%, brown rust by 10%, septoria by 11%. Wheat plants were
characterized by a large number and length of roots by 17% and 13%, root weight by 49%, a
maximum increase in the nodal roots number and length by 15% and 17%; total bushiness by
34.5%; a maximum increase in plant vegetative weight by 37%; the spike length by 3%.
Kirjeldus
Received: January 31st, 2021 ; Accepted: October 5th, 2021 ; Published: October 19th, 2021 ; Correspondence: kleon9@yandex.ru
Märksõnad
associative rhizobacteria, biocontrol of phytopathogens, productivity, soft wheat, yield structure, articles