Plant Stress and Allelotoxicity of Soils.

Autor: Sandukhadze BI; Nemchinovka Federal Research Center, 143026, Moscow, Russia., Fedotov GN; Moscow State University, 119991, Moscow, Russia., Davydova NV; Nemchinovka Federal Research Center, 143026, Moscow, Russia., Mamedov RZ; Nemchinovka Federal Research Center, 143026, Moscow, Russia., Nardid VA; Nemchinovka Federal Research Center, 143026, Moscow, Russia., Gorepekin IV; Moscow State University, 119991, Moscow, Russia., Krakhmaleva MS; Nemchinovka Federal Research Center, 143026, Moscow, Russia., Potapov DI; Moscow State University, 119991, Moscow, Russia., Kazachenko AO; Nemchinovka Federal Research Center, 143026, Moscow, Russia., Savinov EV; Nemchinovka Federal Research Center, 143026, Moscow, Russia., Gracheva TA; Moscow State University, 119991, Moscow, Russia. tanyadunaeva12@mail.ru.
Jazyk: angličtina
Zdroj: Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections [Dokl Biol Sci] 2022 Aug; Vol. 505 (1), pp. 109-112. Date of Electronic Publication: 2022 Aug 29.
DOI: 10.1134/S0012496622040044
Abstrakt: Stress exposures during vegetation are known to reduce the yield in crops, but the intensity and duration of stress is rather difficult to determine from the crop loss. Allelotoxins are released from plants into soil on exposure to stress factors. Soil allelotoxicity after vegetation was assumed to provide a diagnostic parameter that characterizes the total stress effect on crops. To verify the assumption, changes in soil allelotoxicity were studied after vegetation of three winter wheat cultivars fed with different amounts of nitrogen fertilizers. The cultivars Nemchinovskaya 85, Moskovskaya 39, and Lutescens 982/08 were found to differently respond to fertilizing. Nemchinovskaya 85 and Lutescens 982/08 showed lower stress responses at higher doses of nitrogen fertilizers, while their responses were appreciable when soil nitrogen was lacking. In the case of Moskovskaya 39, higher doses of nitrogen fertilizers caused an adverse reaction of increased allelotoxin release. Stepwise nitrogen fertilization was concluded to be necessary for preventing delayed plant development in the case of this cultivar. The results confirmed that soil allelotoxicity measured growing plants can serve as an indicator of stress caused by the growth conditions and use of various agricultural techniques.
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Databáze: MEDLINE
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