Essays, Research Papers and Articles on Agriculture in India
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The shoots in Selaginella are characterized by the possession of meristems (dorsal and ventral) at each branching. These angle-meristems produce roots. In contemporary literature these outgrowths are designated as ‘rhizophore’. However, studies of auxin transport in these structures have conclusively proved their nature as root. Employing labelled auxin (C IAA), it is shown that auxin […]
In this article we will discuss about the morphology of funaria with the help of a suitable diagram. A common moss, Funaria is widely distributed in temperate as well as tropical regions of the world. One of its species F. hygrometrica, is cosmopolitan and best known. It is a terrestrial plant growing in close tufts […]
In this article we will discuss about the origin of seed in selaginella. An evolutionary sequence of origin of seed from homosporous form should involve: (a) Production of two kinds of spores, (b) Reduction in the number of functional megaspores, (c) Final reduction to a single megaspore in the sporangium, (d) Retention of megaspore within […]