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220556

COMBINING ABILITY AND HETEROSIS FOR SEED YIELD AND YIELD RELATED TRAITS IN CANOLA UNDER DIFFERENT NITROGEN LEVELS

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Last updated: 05 Jan 2025

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Abstract

Seven divergent canola genotypes were crossed using a half diallel mating design to determine the mean performance, types of combining abilities, and heterosis under different nitrogen levels for agronomic traits, in Ismailia Agricultural Research Stations, Agricultural Research Center, Egypt. The parents and their F1 crosses were evaluated using a randomized complete block design with three replicates. The GCA/SCA ratio at different nitrogen levels revealed a predominance of additive gene action for the all of the investigated traits. Under all nitrogen levels, P1 for seed weight per plant and P7 for seed oil content were the best general combiners. The generated combinations (P2 × P3) at 30 kg/feddan nitrogen level, (P3 × P5) under 45 kg/feddan nitrogen level, and (P1× P4) under 60 kg/feddan nitrogen level had high and positive SCA effects and mid parent heterosis for seed weight per plant. Moreover, under all nitrogen levels, the combination (P5×P7) had high and positive SCA effects and mid parent heterosisfor seed oil content.

DOI

10.12816/ejpb.2021.220556

Keywords

Canola (Brassica napus L.), performance, Combining ability, mid parent heterosis

Volume

25

Article Issue

1

Related Issue

31443

Issue Date

2021-06-01

Receive Date

2021-10-11

Publish Date

2021-06-01

Page Start

119

Page End

143

Print ISSN

1110-7863

Online ISSN

2735-3885

Link

https://ejpb.journals.ekb.eg/article_220556.html

Detail API

https://ejpb.journals.ekb.eg/service?article_code=220556

Order

9

Type

Original research

Type Code

1,909

Publication Type

Journal

Publication Title

Egyptian Journal of Plant Breeding

Publication Link

https://ejpb.journals.ekb.eg/

MainTitle

COMBINING ABILITY AND HETEROSIS FOR SEED YIELD AND YIELD RELATED TRAITS IN CANOLA UNDER DIFFERENT NITROGEN LEVELS

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Article

Created At

23 Jan 2023