STUDIES ON THE EFFECT OF SEEDLING AGE ON GROWTH AND PHYSIOLOGICAL PARAMETERS IN RICE LANDRACES
Journal Title: International Journal of Agriculture Sciences - Year 2017, Vol 9, Issue 10
Abstract
A field study was conducted at Tamil Nadu Agricultural University, Coimbatore in wetland during samba season (Aug 2014- Jan 2015) with an objective to study the effect of seedling age on growth and physiological parameters in rice landraces under irrigated rice ecosystem. The experiment was laid out in Split Plot Design with three replications. The treatments in main plot were three age of seedlings viz., 15, 20 and 25 days old seedlings and in sub plot eight rice landraces viz., Chandikar, Kuliyadichan, Kuruvaikalanjiyam, Norungan, Nootripathu, Black Kavuni, Red Kavuni, Njavara and CO(R) 50 (one high yielding variety).Observations were recorded on growth parameters such as plant height, tiller numbers, dry matter production, and the physiological parameters like LAI, CGR and RGR. The yield attributes like productive tillers and grain yield were recorded at the time of harvest. The study concludes that 15 days old seedling in all the eight rice landraces and one high yielding variety, recorded higher growth and physiological parameters. In rice landraces, Red Kavuni recorded enhanced growth characters and yield compared to other rice landraces.
Authors and Affiliations
ASHRAF A. MOHAMMED
Keywords
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