Ovule Number and Flower Size in Pea (Pisum sativum L.): Variation, Heritability, and Correlation with Some Components of Productivity

The seed yield in pea (Pisum sativum L.) depends on numerous environmental and genotypic factors. ongoing climate changes draw one’s attention to genetics variation of underexplored reproductive traits. This study focuses ovule number (ON) flower size expressed as a length flag petal (FL), terms their heritability, variability, correlation with 1000 mass (TSM), per pod, seed/ovule ratio. A set accessions was planted over several years field conditions. Some these were also grown glasshouse. chosen values scored living plants or while harvesting seeds. Nonparametric statistical methods applied. Heritability ON FL studied five hybrid F1/F2 combinations. We found relatively low (ca. 0.5) broad sense heritability both FL. Among other traits, TSM reproduced best the years. exhibited no reproducible correlations traits cannot be used predictor productivity. Water deficit heat stress reduce due abortion development fewer ovules. differential heritable ability retain may become basis for breeding cultivars adapted changing climate.