Genetic Effects Of Combining Ability On Forage Quality  Traits And Forage Yield In Diallel Crosses Of  Oats (Avena Sativa L.)

Mushtaq Ahmad; Gul Zaffar; Z A Dar; S M Razvi; Asif Shikari; Mehfuza Habib

doi:10.48165/

Authors

Mushtaq Ahmad Division of Genetics and Plant Breeding, S.K. University of Agricultural Sciences and Technology of Kashmir Shalimar campus, Srinagar -190 025 (J&K) India
Gul Zaffar Division of Genetics and Plant Breeding, S.K. University of Agricultural Sciences and Technology of Kashmir Shalimar campus, Srinagar -190 025 (J&K) India
Z A Dar Division of Genetics and Plant Breeding, S.K. University of Agricultural Sciences and Technology of Kashmir Shalimar campus, Srinagar -190 025 (J&K) India
S M Razvi Division of Genetics and Plant Breeding, S.K. University of Agricultural Sciences and Technology of Kashmir Shalimar campus, Srinagar -190 025 (J&K) India
Asif Shikari Division of Genetics and Plant Breeding, S.K. University of Agricultural Sciences and Technology of Kashmir Shalimar campus, Srinagar -190 025 (J&K) India
Mehfuza Habib Division of Genetics and Plant Breeding, S.K. University of Agricultural Sciences and Technology of Kashmir Shalimar campus, Srinagar -190 025 (J&K) India

DOI:

https://doi.org/10.48165/

Keywords:

Avena sativa, combining ability, forage quality, GCA, heterobeltiosis, SCA, yield

Abstract

Studies in oats (Avena sativa L.) were carried out to generate information on combining ability (general and specific), nature and magnitude of gene effects and heterosis for forage quality and yield. The experimental material comprised of 10 diverse parents and 45 F1 crosses (excluding reciprocals) generated through a 10 x 10 diallel mating design. Significant interaction between combining ability effects were observed for all the quality traits and yield. The estimates of additive variance were higher in magnitude than their corresponding dominance variance estimates indicating the role of additive gene action, except green forage yield and dry matter yield. The parent SKO-213 had highly significant and desirable GCA effects for crude protein content, SKO 210 for neutral detergent fibre, SKO-204 for acid detergent fibre, SKO 208 for crude fibre parent, SKO-207 for ash content and SKO-212 for both green forage and dry matter yields. Crosscombinations viz., SKO 212 x SKO-213, SKO-204 x SKO-211, SKO-205 x Sabzaar, Sabzaar x SKO-212 and SKO-205 x SKO-211 exhibited high and desirable sca and heterobeltiosis effects simultaneously for all the quality traits, green forage yield and dry matter yield ha-1.

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References

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