Polymorphism is the occurrence of different forms of individuals in single species or the presence of distinct forms in a species particularly with certain habitat or population. Physical polymorphism is common occurrence in seed, which occurs due to the flowering behaviour (reflected on seed formation and maturation), plant senescence or places of seed formation on the mother plant. The latter one is known as positional polymorphism and influences the morphological and physiological characters of seeds. In the present investigation, studies were carried out in petunia owing to their continuous flowering habit, with the idea to trace the influence of position of pod on seed and seedling quality characters.
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Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
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