Zannat Arova, Hussain Md Arif, Md Abdullah Abu Habib, Hossain Md Ismail, Saifullah Md, Safhi Fatmah A, Alshallash Khalid S, Mansour Elsayed, ElSayed Abdelaleim I, Hossain Md Sazzad
Department of Horticulture, Sher-e-Bangla Agricultural University, Bangladesh.
Department of Biochemistry, Sher-e-Bangla Agricultural University, Bangladesh.
Heliyon. 2023 Aug 4;9(8):e18958. doi: 10.1016/j.heliyon.2023.e18958. eCollection 2023 Aug.
Tomato is the most consumed vegetable crop worldwide, with excellent beneficial health properties and high content of vitamins, minerals, carotenoids, total antioxidants, and phenolic compounds. Hence, improving its genotypes is crucial to sustain its production and ensure food security, principally under the fast-growing worldwide population and abrupt global climate change. The present study aimed to explore the genotypic variability associated with specific characteristics in twenty-five diverse tomato genotypes. In addition, the relationships between growth, yield, and quality traits using both univariate (correlation coefficient, path analysis) and multivariate (principal component, principal coordinates, canonical variate) analysis methods were explored. The results indicated that the evaluated genotypes possessed highly significant variation. This is appropriate for future hybridization through tomato breeding programs. All evaluated genotypes demonstrated considerable potential to develop strong hybrid vigour for growth, yield, and quality characteristics. In particular, the genotypes LS009, LS011, and LS014 could be considered promising, high-yielding, and resistant to yellow leaf curl virus infestation (YLCV) disease parents for future breeding schemes. The number of fruits per plant, fruit diameter, and fruit weight proved strong positive relationships with fruit yield. Accordingly, these characteristics demonstrate their importance in improving fruit yield and could be exploited as indirect criteria for selecting high-yielding tomato genotypes through breeding programs.
番茄是全球消费最多的蔬菜作物，具有出色的有益健康特性，且维生素、矿物质、类胡萝卜素、总抗氧化剂和酚类化合物含量高。因此，改良其基因型对于维持其产量并确保粮食安全至关重要，特别是在全球人口快速增长和全球气候变化剧烈的情况下。本研究旨在探索25种不同番茄基因型中与特定特征相关的基因型变异。此外，还使用单变量（相关系数、通径分析）和多变量（主成分分析、主坐标分析、典型变量分析）分析方法研究了生长、产量和品质性状之间的关系。结果表明，所评估的基因型具有极显著的变异。这适合通过番茄育种计划进行未来的杂交。所有评估的基因型在生长、产量和品质特征方面都显示出产生强大杂种优势的巨大潜力。特别是，基因型LS009、LS011和LS014可被视为未来育种计划中有前景、高产且抗黄叶卷曲病毒侵染（YLCV）病的亲本。单株果实数、果实直径和果实重量与果实产量呈强正相关。因此，这些特征表明它们在提高果实产量方面的重要性，可作为通过育种计划选择高产番茄基因型的间接标准加以利用。
