Variability in Number of Seedling Potentials for Final Yield Evaluation in Rice (Oryza sativa L.)
O. S. Osekita *
Department of Plant Science and Biotechnology, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria. and Department of Agronomy, Presently in Crop Improvement Unit, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria.
R. I. Adedoyin
Department of Plant Science and Biotechnology, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria.
B. O. Akinyele
Department of Crop, Soil and Pest Management, The Federal University of Technology, Akure, Ondo State, Nigeria.
O. A. Obembe
Department of Plant Science and Biotechnology, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria.
A. C. Odiyi
Department of Crop, Soil and Pest Management, The Federal University of Technology, Akure, Ondo State, Nigeria.
M. G. Akinwale
Reseed Project, International Institute of Tropical Agriculture (IITA), Lilongwe, Malawi.
*Author to whom correspondence should be addressed.
Abstract
Five lowland rice genotypes obtained from International Institute of Tropical Agriculture (IITA) Ibadan were grown during the rainy season of 2013/2014 to study factor analysis for yield and its components in rice (Oryza sativa L). The factors are the genotypes and numbers of seedlings planted per hill, the varieties were evaluated in a split plot design replicated three times, and the numbers of seedlings per hill were allotted to the subplot and the rice genotypes in the main plot. The study was conducted on the field of Akungba Akoko Plant Science and Biotechnology Department, Adekunle Ajasin University, Nigeria. The characters measured include: number of tillers/hill at 30 and 50 days after transplanting, plant height at 30 and 50 days after transplanting, final plant height, flag leaf length, number of effective tillers, number of spikelets per panicle, number of grain per panicle, grain length, grain width, panicle length, panicle weight, 1000 grain weight, and grain yield per hill. The results showed that there were no significant differences between the treatments and the genotypes and that the treatments have no effect on the yield of the genotypes. The PCV was higher than GCV for all characters in most cases.
Keywords: Characters;, factor analysis, genotypes;, seedlings, yield component