Owusu Emmanuel Y, Karikari Benjamin, Kusi Francis, Haruna Mohammed, Amoah Richard A, Attamah Patrick, Adazebra Gloria, Sie Emmanuel K, Issahaku Memunatu
Council for Scientific and Industrial Research - Savanna Agricultural Research Institute, Ghana.
Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Heliyon. 2021 Aug 28;7(9):e07890. doi: 10.1016/j.heliyon.2021.e07890. eCollection 2021 Sep.
Experimental studies were conducted to evaluate 16 advanced breeding lines of cowpea ( (L) Walp) for genetic variability, heritability and correlation between maturity and yield related traits. The genotypes exhibited significant ( < 0.05) differences for the eight traits evaluated viz., number of days to 50 % flowering, number of days to 90 % pod maturity, plant height at maturity, number of pods per plant, number of seeds per pod, pod yield, grain yield and hundred seed weight. SARI-3-11-100, SARI-6-2-6, SARVX-09-004 and IT07K-299-6 had grain yields of 1.99 ± 0.30, 1.88 ± 0.20, 1.95 ± 0.30 and 1.91 ± 0.20 t/ha, respectively, which were significantly higher than the check () (1.68 ± 0.01 t/ha). In addition, SARI-5-5-5 matured significantly earlier than the check but no significant difference was observed for grain yield. The higher value of phenotypic component compared to the corresponding genotypic component for all the traits suggest that there was an environmental influence on the performance of the genotypes. Hence, the need for multi-location evaluation of the promising lines for onward release if found stable. The information provided in this study, can be exploited in cowpea breeding program.
开展了实验研究，以评估16个豇豆（Vigna unguiculata (L.) Walp）先进育种系的遗传变异性、遗传力以及成熟度与产量相关性状之间的相关性。这些基因型在评估的八个性状上表现出显著（P < 0.05）差异，即50%开花天数、90%豆荚成熟天数、成熟时株高、单株豆荚数、每荚种子数、豆荚产量、籽粒产量和百粒重。SARI-3-11-100、SARI-6-2-6、SARVX-09-004和IT07K-299-6的籽粒产量分别为1.99±0.30、1.88±0.20、1.95±0.30和1.91±0.20吨/公顷，显著高于对照品种（1.68±0.01吨/公顷）。此外，SARI-5-5-5比对照品种成熟显著更早，但籽粒产量未观察到显著差异。所有性状的表型成分值高于相应的基因型成分值，表明环境对基因型表现有影响。因此，如果发现有前景的品系稳定，需要在多个地点对其进行评估以便进一步推广。本研究提供的信息可用于豇豆育种计划。
