High yielding rice genotypes with good levels of resistance to RYMV were identified at Africa Rice Center-WARDA in Cote d‘Ivoire. The yields and resistance stability of these genotypes, however, remain uncertain. The performance of 13... more
High yielding rice genotypes with good levels of resistance to RYMV were identified at Africa Rice Center-WARDA in Cote d‘Ivoire. The yields and resistance stability of these genotypes, however, remain uncertain. The performance of 13 genotypes over 10 different RYMV isolates from 7 localities in Cote d’Ivoire was tested in the screenhouse. Chlorophyll (SPAD) and yield reductions due to RYMV disease were evaluated. Considerable diversity was observed in the reactions of these genotypes to all the RYMV isolates. Percentage yields and SPAD reduction were between 2.3-90.3 and 5.3-40%, respectively. Of 13 rice genotypes studied, IR 47686-15-1-1(P) had the lowest mean SPAD and yield reductions. The levels of resistance shown by japonicas were better than those of indicas. Six genotypes (FARO 11; GIGANTE (tete); H 232-44-1-1; IR 47686-15-1- 1(P); IR 47686-15-1-1; ITA 235) could be described as possessing both stable and acceptable levels of resistance to RYMV. The high genotype by environment interactions in the reactions of the rice genotypes to RYMV suggests the possible existence of different strains of RYMV in Cote d’Ivoire. This information could be useful in rice breeding programs aiming at deployment of RYMV resistant genotypes to different rice ecologies and localities in Cote d’Ivoire.
This study was conducted to determine the effect of ipil ipil and bean leaves supplementation on egg production, egg quality and growth performance of Japanese quail. A total of 40 " Japanese Quail " at the age of 42 days (06... more
This study was conducted to determine the effect of ipil ipil and bean leaves supplementation on egg production, egg quality and growth performance of Japanese quail. A total of 40 " Japanese Quail " at the age of 42 days (06 weeks) old were divided into four groups T 0 , T 1 , T 2 and T 3 respectively. Group T 0 was considered as control which fed only with commercial layer ration. Group T 1 was supplemented with formulation of 2 gm grinded ipil ipil leaves, Group T 2 with 2 gm grinded Bean leaves and Group T 3 with 2 gm grinded ipil ipil leaves plus 2 gm grinded Bean leaves per kg feed respectively. Observations were recorded for growth performance, egg production and egg quality of quail. Increased egg production rate was observed in ipil ipil supplemented groups (group T 1). Body weights were increased significantly (p<0.05) in all treated groups in respect to the control and highest was recorded in combined ipil ipil and Bean leaves supplemented groups (Group T 3)....
