Evaluation of the Resistance to Submersion of Four Rice Varieties in the Irrigated Plain of Founkama Faranah (Republic of Guinea)

Agriculture improvement

This research was carried out in Case No. 3 located on the south side of the Main Canal of the Founkama Domain, on a hydromorphy sol-hydro-morphic soil of clay-loam texture with a pH of 5.20 and an organic matter content. of 3.99%. This soil is covered with vegetation dominated by Herbaceae. This study was conducted from 10/06/2015 to 25/01/2016 in Faranah in four (4) submersion times (0 days ; 10 days ; 15 days and 20 days) on four rice varieties. The experiment was carried out on 16 elementary plots of (5 m×2 m) or 10 m2 each and spaced 0.50 m apart. The emergence, three-leaf stage were uniform for the four varieties, the vegetative cycle between plants was not submerged (0 days). The submersion was observed for 11 days for Karbonka, 12 days for Sonsompolo, 23 days for B38D2 and 26 days for Luoyou 8. The temperature of the water during submersion varied from 27°C to 29°C. The number of live plants, the height of the plants and the yields were influenced by submersion times. The Luoyou 8 had the best yields according to submersion times (0 days ; 10 days ; 15 days and 20 days), (4.83 ; 4.33 ; 3.72 and 3.57 t / ha) and followed by the Karbonka (3.55; 3.39 and 2.56 t/ha).

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.