Breeding assessment of new promising cotton lines

Abstract. Cotton breeding in Bulgaria is mainly aimed at improving the earliness, productivity and fiber quality of modern varieties. The creation of new genetic diversity is one of the basic prerequisites for the success of breeding programs. The aim of the study was to evaluate cotton lines obta...

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Main Authors: V. Dimitrova, R. Dragov
Format: Article
Language:English
Published: Trakia University. Faculty of Agriculture, Stara Zagora 2021-09-01
Series:Agricultural Science and Technology
Subjects:
Online Access:https://agriscitech.eu/breeding-assessment-of-new-promising-cotton-lines/
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author V. Dimitrova
R. Dragov
author_facet V. Dimitrova
R. Dragov
author_sort V. Dimitrova
collection DOAJ
description Abstract. Cotton breeding in Bulgaria is mainly aimed at improving the earliness, productivity and fiber quality of modern varieties. The creation of new genetic diversity is one of the basic prerequisites for the success of breeding programs. The aim of the study was to evaluate cotton lines obtained by intraspecific and remote hybridization combined with backcross technology, with a view to their most effective usage in selection. Twenty-three lines were included in competitive variety trials conducted during the 2014-2017 period. The averaged results showed that lines 550, 639, 641, obtained by remote hybridization, appeared to be very promising. These three lines were distinguished by the best combination of productivity, fiber length and fiber lint percentage, and by these three indicators they exceeded the standard variety Chirpan-539. A new cotton variety Aida (No. 457) was approved, which in seed cotton yield and fiber yield, and technological fiber properties surpassed the standard varieties Chirpan-539 for earliness and productivity and Avangard-264 for fiber quality. The candidate variety 535 continued the state variety testing. Two new candidate cotton varieties No. 550 and No. 553 were released. In the state variety testing the three candidate varieties confirmed their qualities. The obtained lines, distinguished by one trait or by a complex of qualities, enriched the gene pool of Bulgarian cotton.
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spelling doaj.art-6166374f777f4bdf8b6fd092b028be6c2022-12-21T21:23:52ZengTrakia University. Faculty of Agriculture, Stara ZagoraAgricultural Science and Technology1313-88201314-412X2021-09-0113323423910.15547/ast.2021.03.036Breeding assessment of new promising cotton linesV. Dimitrova R. DragovAbstract. Cotton breeding in Bulgaria is mainly aimed at improving the earliness, productivity and fiber quality of modern varieties. The creation of new genetic diversity is one of the basic prerequisites for the success of breeding programs. The aim of the study was to evaluate cotton lines obtained by intraspecific and remote hybridization combined with backcross technology, with a view to their most effective usage in selection. Twenty-three lines were included in competitive variety trials conducted during the 2014-2017 period. The averaged results showed that lines 550, 639, 641, obtained by remote hybridization, appeared to be very promising. These three lines were distinguished by the best combination of productivity, fiber length and fiber lint percentage, and by these three indicators they exceeded the standard variety Chirpan-539. A new cotton variety Aida (No. 457) was approved, which in seed cotton yield and fiber yield, and technological fiber properties surpassed the standard varieties Chirpan-539 for earliness and productivity and Avangard-264 for fiber quality. The candidate variety 535 continued the state variety testing. Two new candidate cotton varieties No. 550 and No. 553 were released. In the state variety testing the three candidate varieties confirmed their qualities. The obtained lines, distinguished by one trait or by a complex of qualities, enriched the gene pool of Bulgarian cotton.https://agriscitech.eu/breeding-assessment-of-new-promising-cotton-lines/breedingcottoncandidate varietiesfiber propertiesyield
spellingShingle V. Dimitrova
R. Dragov
Breeding assessment of new promising cotton lines
Agricultural Science and Technology
breeding
cotton
candidate varieties
fiber properties
yield
title Breeding assessment of new promising cotton lines
title_full Breeding assessment of new promising cotton lines
title_fullStr Breeding assessment of new promising cotton lines
title_full_unstemmed Breeding assessment of new promising cotton lines
title_short Breeding assessment of new promising cotton lines
title_sort breeding assessment of new promising cotton lines
topic breeding
cotton
candidate varieties
fiber properties
yield
url https://agriscitech.eu/breeding-assessment-of-new-promising-cotton-lines/
work_keys_str_mv AT vdimitrova breedingassessmentofnewpromisingcottonlines
AT rdragov breedingassessmentofnewpromisingcottonlines