Evaluation of the combining ability of CMS lines in crosses with samples of grain sorghum and Sudan grass
Laen...
Kuupäev
2021
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The versatility of use, species diversity, and high drought resistance have ensured the
demand for sorghum among agricultural crops in the world. Currently, the most promising
direction of breeding is the creation of F1 sorghum hybrids, which is based on the identification
and selection of parental forms with high combining ability. In this paper, the combining ability
analysis crosses of two hybridization schemes: grain×grain sorghum and grain sorghum×Sudan
grass was carried out using topcross method. Gene action governing inheritance of a particular
trait can be measured in terms of general and specific combining ability estimates, where general
combining ability effects are mostly indicative of additive gene action (ms (GCA)/ms (SCA)>1)and
specific combining ability effects - non-additive (ms (GCA)/ms (SCA)<1). Genes with an additive
effect participate in the genetic control of breeding-valuable traits, which is proven byms(GCA)/ms
(SCA) ratios changing within1.10-28.01 range. It is advisable to involve CMS-lines A3 Feterita 14,
A2 KVV 114 and A2 O-1237 to create high-yielding hybrids of grain sorghum; highly productive
sorghum-sudangrasshybridss - lines L-106, L-143 and Anastasiya, Kinelskaya 100, Elegiya
variety samples; with a high share of grain in the total biomass – Allegoriya, Krasnodarskaya 75
and Zonalskaya 6 variety samples. CMS lines are distinguished by high and average CA values
both in crosses with samples of grain sorghum and Sudan grass: by weight of 1,000 grains - A2
O-1237; by seed yield and weight of 1,000 grains - A2 KVV 114.
Kirjeldus
Received: April 2nd, 2021 ; Accepted: July 28th, 2021 ; Published: August 3rd, 2021 ; Correspondence: kibalnik79@yandex.ru
Märksõnad
sorghum, Sudan grass, CMS lines, CMS types, F1 hybrids, GCA effects, SCA dispersion, agronomic traits, articles