Abstract

The genetic resources of wild populations of Medicago falcate L. of the Cretaceous South of the Srednerussky Upland in ecotopic conditions of chalky slopes and floodplain meadows in the basins of small rivers Tikhaya Sosna and Manjokha were studied to find the source material for breeding work to create varieties for different cultivation conditions. Evaluation of phytocenotic features, density of cenopopulations, forage and seed species was carried out. The species M. falcata forms, both on meadows in floodplains and on chalk slopes, full-membered normal cenopopulations, which have a continual (continuous) distribution of individuals by age groups, stable in time and in space. The centralized ontogenetic spectrum indicates the stable status of M. falcata cenopopulations in plant communities in various ecotopes of small river basins. The density of individuals of M. falcata was on average 18.9 % higher in cenopopulations of floodplains than in chalk slopes. The density of generative individuals in all studied cenopopulations was on average close and varied within 81.2-83.7 %, which indicates their stability in time and high adaptive potential. The weight of one fruiting model plant of floodplain meadows was 2.28 times higher than on chalky slopes. Seed yield on floodplain meadows was 2.02 times higher than on chalky slopes. Valuable source material for breeding M. falcatum varieties adapted to different ecotopic conditions was obtained.

Details

Title
Wild Populations Of Medicago Falcata L. In Small River Basins Of European Russia As A Source Material For Breeding
Author
Kosolapov, V M 1 ; Cherniavskih, V I 2 ; Dumacheva, E V 2 ; Tseiko, L M 3 ; Kostomakhin, M N 4 ; Berdiev, M 5 

 Federal Williams Research Center of Forage Production & Agroecology, 1 building, Scientific town, Lobnya, Moscow region, 141055, Russia 
 Federal Williams Research Center of Forage Production & Agroecology, 1 building, Scientific town, Lobnya, Moscow region, 141055, Russia; All-Russian Research Institute of Phytopathology, 5 Ownership, Institute St., r.p. Big Vyazemy, Odintsovo district, Moscow region, 143050, Russia; Belgorod State University, 85, Pobedy St., Belgorod, 308015, Russia 
 All-Russian Research Institute of Phytopathology, 5 Ownership, Institute St., r.p. Big Vyazemy, Odintsovo district, Moscow region, 143050, Russia 
 Federal Scientific Agroengineering Center VIM, 5, Institutskiy proezd, 1 St, Moscow, 109428, Russia 
 Belgorod State University, 85, Pobedy St., Belgorod, 308015, Russia 
Publication year
2021
Publication date
Nov 2021
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2597838668
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.