ЭлБиб

ГЕНЕТИКА, БИОТЕХНОЛОГИЯ, СЕЛЕКЦИЯ И СЕМЕНОВОДСТВО

ͪКормопроизводствоͫ № 9, 2018

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SELECTION OF PARENT MATERIAL FOR RUSSIAN WILDRYE BREEDING

IN THE SOUTH OF CENTRAL SIBERIA

KADORKINA V. F.

Research Institute for Agricultural Issues of Khakassia

655132, Russia, the Republic of Khakassia, Ust-Abakanskiy rayon, selo Zelenoe (village), Sadovaya str., 5

E-mail:

Experiment took place on minor low-humus chestnut soil in 2014–2018. The goal was to select biotypes of Russian wildrye,

adapted to the region condiƟons and evaluate its economically important traits. Such traits as number of generaƟve shoots,

seed mass per 1 plant, stand vigor, Ɵller form at the heading Ɵme and resistance to lodging had average variaƟon, suggesƟng

uniformity of parent lines. Plant height and head length had significant variaƟon coefficients — 23.2 and 26.6%, respecƟvely.

Selected material grew on different types of chestnut soils since 2015 in the nursery of the InsƟtute. Insignificant variaƟon in

lodging-resistance happened in 2016 — 7.22%. Other traits showed high variaƟon — from 20.04 to 93.22%. In 2017 plant had

significant variaƟon in stand vigor, seed mass per 1 plant and head length — from 20.13 to 48.82%, while other traits had aver-

age variaƟon — from 13.29 to 15.64%. As a result, lines were selected as the sources for economically important traits. Select-

ed genotypes had high number of generaƟve shoots, adequate height, seed mass per 1 plant, stand vigor, Ɵller form and resis-

tance to lodging — complex of traits, affecƟng total producƟvity.

Keywords:

Russian wildrye, ecotype, selecƟon, drought tolerance, parent material.

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