International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (637) Last page : (637)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6008

Genetic Variability for Reproductive Characters in Guinea Grass (Panicum maximum Jacq.)

Sudrik B. P.*, Mareen Abraham., Vijayaraghavakumar and Usha C. Thomas

PhD scholar, Department of Plant Breeding and Genetics
College of Agriculture, Vellayani, Trivandrum-695522, Kerala
*Corresponding Author E-mail: sudrik2011@gmail.com
Received: 19.11.2017  |  Revised: 28.12.2017   |  Accepted: 2.01.2018  

 

 ABSTRACT

A field experiment was carried out in Guinea grass (Panicum maximum Jacq.) with 37 genotypes including two check varieties, to study genetic variability for green fodder yield and its related characters. The observations were recorded on individual plant basis for five randomly selected plants of each genotype for each replication for plant height, number of tillers per hill, number of leaves per hill, leaf stem ratio, leaf area index, length of internode, leaf length, leaf breadth, days to flowering, length of panicle, number of panicles per hill, weight of seeds per hill, green fodder yield, dry fodder yield, crude protein content, crude fibre and gibberlic acid content. The results revealed that the genotypes were significantly different for all the 17 characters, indicating sufficient variability in the experimental material. The characters green fodder yield, leaf stem ratio, weight of seeds per hill, dry fodder yield and gibberlic acid content showed high GCV and PCV. High estimates of heritability along with high genetic advance (% of mean) were observed for number of tillers per hill, leaf stem ratio, weight of seeds per hill, crude protein content, crude fibre and gibberlic acid content. Therefore, selection for these characters will be more effective.

Key words: Guinea grass, Heritability, Genetic advance, Genetic divergence, Panicum maximum

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Sudrik, B.P., Abraham, M., Vijayaraghavakumar and Thomas, U.C., Genetic Variability for Reproductive Characters in Guinea Grass (Panicum maximum Jacq.), Int. J. Pure App. Biosci.6(2): 637-641 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6008