Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting Station

The article highlights the results of studying hybrid combinations of common onion to the Botrytis allii Munn pathogen. It is found out that as for the combinations being studied the resistance to pathogen was inherited as dominant, intermediate or recessive trait. Better resistance to neck rot was...

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Main Author: Н. О. Горган
Format: Article
Language:English
Published: Ukrainian Institute for Plant Variety Examination 2013-05-01
Series:Plant Varieties Studying and Protection
Subjects:
Online Access:http://journal.sops.gov.ua/article/view/58566
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spelling doaj-a013bd636484485e94cef4dc4a0f2bce2020-11-24T22:54:58ZengUkrainian Institute for Plant Variety ExaminationPlant Varieties Studying and Protection2518-10172518-74572013-05-0102(19)535510.21498/2518-1017.2(19).2013.5856658566Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting StationН. О. Горган0Nosivskiy Breeding and Experimental Station, Institute of Agricultural Microbiology and Agriculture, National Academy of Agrarian Sciences of UkraineThe article highlights the results of studying hybrid combinations of common onion to the Botrytis allii Munn pathogen. It is found out that as for the combinations being studied the resistance to pathogen was inherited as dominant, intermediate or recessive trait. Better resistance to neck rot was inherent in the hybrid combinations which parents comprised resistant and immune varieties, insofar as the determination of inheritance coefficient has indicated F1 hybrids have this characteristic expression dependant by 50 to 78% on the parental plant (h2 =0,50–0,78). Studying the determination of the impact of both parental components on inheritance of the resistance to B. allii pathogen showed that the regression coefficient subject to hybrid combination fell within R = 0,12–0,39, while the resistance coefficient within 0,24–0,78, respectively. Efficiency of selection is proved by the trait of resistance to neck rot based on the populations of Grandina х Mavka, Olina х Grandina, Grandina х Skvyrska і Skvyrska х Grandina, as their respective inheritance coefficient reached the level of 0,42 to 0,78.http://journal.sops.gov.ua/article/view/58566common onionvarietyhybridresistancepathogendiseaseneck rotheritance rate.
collection DOAJ
language English
format Article
sources DOAJ
author Н. О. Горган
spellingShingle Н. О. Горган
Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting Station
Plant Varieties Studying and Protection
common onion
variety
hybrid
resistance
pathogen
disease
neck rot
heritance rate.
author_facet Н. О. Горган
author_sort Н. О. Горган
title Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting Station
title_short Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting Station
title_full Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting Station
title_fullStr Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting Station
title_full_unstemmed Inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of Nosivka Variety Texting Station
title_sort inheritance nature for the trait of resistance to neck rot in hybrid combinations of common onion under the conditions of nosivka variety texting station
publisher Ukrainian Institute for Plant Variety Examination
series Plant Varieties Studying and Protection
issn 2518-1017
2518-7457
publishDate 2013-05-01
description The article highlights the results of studying hybrid combinations of common onion to the Botrytis allii Munn pathogen. It is found out that as for the combinations being studied the resistance to pathogen was inherited as dominant, intermediate or recessive trait. Better resistance to neck rot was inherent in the hybrid combinations which parents comprised resistant and immune varieties, insofar as the determination of inheritance coefficient has indicated F1 hybrids have this characteristic expression dependant by 50 to 78% on the parental plant (h2 =0,50–0,78). Studying the determination of the impact of both parental components on inheritance of the resistance to B. allii pathogen showed that the regression coefficient subject to hybrid combination fell within R = 0,12–0,39, while the resistance coefficient within 0,24–0,78, respectively. Efficiency of selection is proved by the trait of resistance to neck rot based on the populations of Grandina х Mavka, Olina х Grandina, Grandina х Skvyrska і Skvyrska х Grandina, as their respective inheritance coefficient reached the level of 0,42 to 0,78.
topic common onion
variety
hybrid
resistance
pathogen
disease
neck rot
heritance rate.
url http://journal.sops.gov.ua/article/view/58566
work_keys_str_mv AT nogorgan inheritancenatureforthetraitofresistancetoneckrotinhybridcombinationsofcommononionundertheconditionsofnosivkavarietytextingstation
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