Floral polymorphism and scanning electron microscopy determination in relation to climatic influence on Solanum nigrum L.
DOI:
https://doi.org/10.15835/nsb12210722Keywords:
climate; floral biology; pollen; polymorphism; Solanum nigrum L.Abstract
Growing concern about climatic influence on plants reproductive biology leads to a recent surge. Climate affects directly floral morphology of plants on this basis current study summarizes climatic effects on floral or reproductive biology of Solanum nigrum L. Effect of summer, rainy and winter seasons were recorded on floral morphology, pollens viability & germination, pollen tube growth, fruit-set percentage during investigations which were subjected to one factorial analysis of variance (ANOVA) and least significant differences at p < 0.05. Climatic conditions affect floral morphology and produce polymorphism in specific conditions. In rainy and winter seasons, polymorphism was recorded in petals, stamens and pistil which is a first record of climatic influence on polymorphism. Rainy season reported for their maximum flowers numbers which promote a huge fruit-set percentage in open pollination as compared with self and cross pollination. This study confirms the effect of various climates on different floral parts which produce polymorphism along with growth, germination, length, etc. Scanning Electron Microscopy (SEM) study indicated the climatic variations on microscopic observations.
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