Record Details

Generation mean analysis in maize (Zea mays) for yields and yield attributing traits.

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Generation mean analysis in maize (Zea mays) for yields and yield attributing traits.
Generation mean analysis in maize (Zea mays) for yields and yield attributing traits.
Generation mean analysis in maize (Zea mays) for yields and yield attributing traits.
 
Creator Sharma P Kumar N
Kamboj M C
Singh N
Kumar R
Kumar N
 
Subject Gene action
Generation mean
Maize
 
Description Not Available
The nature of gene action involved is mainly responsible for the genetic improvement of any crop. Generation means analysis for maize (Zea mays L.) yield and its traits for six generations, i.e. P1, P2 F1, F2, BC1 and BC2 of six crosses evaluated at Karnal. Significant individual and joint scaling tests indicated inadequacy of three parameter models and presence of epistasis in all characters indicating greater genetic variation in parents. However, only shelling percentage in HKI 209 × HKI 163 showed additive-dominance. The presence of duplicate form of non-allelic gene interactions was prominent, except for days to maturity and cob diameter in HKI 325-17AN × HKI 163, cob length in HKI 209 × HKI 163 and shelling percentage in HKI 1332 × HKI 163 where complementary gene action is recorded. It suggests selection from F3 generation onwards for character improvement. Dominance and duplicate type of epistatic effects were found to be more prominent for inheritance than additive effects alone for grain yield/plant, grains/cob, and plant height suggesting the reciprocal recurrent selection or bi-parental mating design to improve in these characters. In crosses where dominance was of major importance, the trait could be successfully utilized for the exploitation of hybrid vigour. Some significant additive and additive × additive effects were recorded in all of these crosses, and therefore gain from selection could be possible, fixable and heritable epistasis coul
Not Available
 
Date 2023-02-24T03:08:14Z
2023-02-24T03:08:14Z
2022-06-01
 
Type Research Paper
 
Identifier Sharma P, Kamboj M C, Singh N, Kumar R and Kumar N.2022. Generation mean analysis in maize (Zea mays) for yields and yield attributing traits. Ind. J. Agri. Sci. 92 (1): 112-119
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/76410
 
Language English
 
Relation Not Available;
 
Publisher ICAR