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Preliminary studies of leaf morphogenesis in some varieties of rice plant


, : Preliminary studies of leaf morphogenesis in some varieties of rice plant. Proc Natl Inst Sci India Sect B Biol Sci 26(6): 359-366

Three varieties of rice plants, F.R.13A (aman), Satika (aus) and C.B.I. (boro) were grown as broadcast paddy for the morphogenetic studies of the leaves borne by the main culm. The varieties show differences in (i) the number of foliar leaves on main culm, (ii) the relative lengths of leaf sheath and leaf blade and (iii) the sequences of the ratios between the lengths of leaf sheath and leaf blade (S/B) in all the successive mature leaves. The graphical representation of the S/B ratios indicates that the culm elongation phase in each variety was accompanied by a definite fall in the ratios. Ear formation is evident much earlier from the higher S/B ratio of the leaf developing just before the terminal ear leaf.

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