Volume 8, Issue 1, January 2020, Page: 15-21
Screening Rice (Oryza sativa. L.) for Salinity Tolerance for Yield and Yield Components in Saline Stressed Environment
Andrew Abiodun Efisue, Development of Crop & Soil Science, University of Port Harcourt, Port Harcourt, Nigeria
Cynthia Chimezie Dike, Development of Crop & Soil Science, University of Port Harcourt, Port Harcourt, Nigeria
Received: Jan. 12, 2020;       Accepted: Jan. 27, 2020;       Published: Feb. 10, 2020
DOI: 10.11648/j.ajaf.20200801.13      View  280      Downloads  165
Rice is one of the most important staple crops consumed by a large part of the human population but the issue of salinity is one of the limiting factors affecting its productivity. The objective of this study was to identify salt tolerant genotype for deployment into salt stressed regions and also for population improvement for salinity breeding programme. Material and Methods: the study was a potted experiment using 8 korean lines and UPIA1 and UPIA2 as check in a randomized complete block design with four levels of sodium chloride concentration (0, 2, 3 and 6 dS/m) replicated three times at the University of Port Harcourt Teaching and Research Farm. Result: most of the genotype showed differential response to salinity stress. Varieties like UPN 509, UPN 216, constantly showed high mean value for Leaf Area Index, 1000 grain weight, plant height and tillering ability across the salinity concentration gradient in salinity tolerance index. Principle Component 1 and 2 contributed 46.17% and 15.17% respectively of the total variation. Total grain yield showed strong positive significant correlation with plant height, grain weight per panicle leaf area index and 1000 grain weight. In conclusion, UPN 509 which showed the highest yielding capacity and UPN 216 which showed the highest tillering ability and tolerance to salinity stress at the highest concentration level maybe promising genotypes for deployment into saline stressed environment.
Oryza Sativa, Salinity, Yield, Yield Components, Salinity Tolerance Index
To cite this article
Andrew Abiodun Efisue, Cynthia Chimezie Dike, Screening Rice (Oryza sativa. L.) for Salinity Tolerance for Yield and Yield Components in Saline Stressed Environment, American Journal of Agriculture and Forestry. Vol. 8, No. 1, 2020, pp. 15-21. doi: 10.11648/j.ajaf.20200801.13
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