Variation diversity in the leaves of Passiflora incarnate L. introduced for the first time in Absheron

Abstract

During plant development, leaves undergo various ontogenetic changes, including differences in size, shape, and geometric dimensions. An in-depth study of morphological traits showed differences in species and populations according to adaptive traits. The Passiflora incarnata L. species of the Passiflora genus undergoes heteroblastic-significant changes as it grows and develops, showing a morphological distinction between young and mature vegetative phases. Morphological polymorphism of the leaves of P. incarnata L., one of the most promising species introduced to Azerbaijan and grown under in open and in closed conditions, was studied and analyzed mathematically. The leaf area was 135.8 cm² under in open conditions and amounted to 105.5 cm² under in closed conditions; the perimeter of the leaf under in open conditions was 367.48 cm, while in plants grown under in closed conditions this parameter was 355.6 cm. The morphological characteristics of the leaves were found to be higher in the samples grown under in open conditions compared to the in closed conditions. However, in addition to the leaf perimeter, diversity observed in other morphological traits and the coefficient of variation were higher in plants developed under in closed conditions compared to those grown in open. This is attributed to the greater stability of abiotic factors under in open conditions compared to in closed conditions. The high variance indicates the high adaptability of the P. incarnata L. species.