African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Article in Press

Evaluation of Field Pea (Pisum sativum L.) Genotypes for Yield and Yield Attributing Traits at High land of Arsi, South East Ethiopia

Kedir Yimam1,*, Aliyi Robsa1, Gizachew Yilma1 and Temesgen Abo1

  •  Received: 31 July 2019
  •  Accepted: 23 September 2019
The field experiment was conducted in 2018/19 main cropping season at two locations using simple lattice design to evaluate 49 field pea genotypes including nine released varieties for generating information on genotypic and phenotypic coefficient of variation, heritability and expected genetic advance for yield ad yield attributing traits. The genotypic (GCV) and phenotypic (PCV) coefficient of variation (GCV) ranged from (1.07%) to (22.40%) and (1.22%) to (28.18% for days to maturity and grain yield, respectively for combined analyses. The PCV values were relatively greater than GCV in magnitude for all traits, of which significantly higher PCV than GCV values observed for number of pods per plant, Stand count, powdery mildew and ascocayta blight, but insignificant differences between PCV and GCV values observed for days to flowering, days to maturity, plant height, 1000 seed weight, and grain yield. Broad sense heritability ranged from 23.66% to 90.73 %. The genetic advance as percentage of mean (GAM) varied from 1.92% to 36.73% .Higher heritability (H2) coupled with high GAM observed for grain yield per ha and Higher heritability (H2) coupled with Moderate or relatively high value of GAM in plant height and seed size. Therefore, selection of genotypes based on the phenotypic performance of these traits could improve grain yield of field pea.

Keywords: Broad sense heritability, genetic advance, genotypic coefficient of variation, phenotypic coefficient of variation