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Articles by B. Cisse
Total Records ( 2 ) for B. Cisse
  K. A. Sanni , D.K . Ojo , M. A. Adebisi , E. A. Somado , O. J. Ariyo , M. Sie , I. Akintayo , D. D. Tia , S. A. Ogunbayo , B. Cisse , M. Sikirou and M. A. Adekoya
  Field experiment was conducted in Deve (6°48 N, 1°47`E, 72 masl) in the Savannah zone of Benin Republic, to examine the increase in grain yield due to ratooning. Eighteen upland interspecific varieties (NERICA1-18) and their Oryza glaberrima (CG 14) and one of the O. sativa (WAB 56-104) parents were used in a Randomized complete block design with three replications. The first (main) crop was harvested at mass maturity, after which the tillers were hand mowed to stubbles of about 10 cm tall. These were then left without any further input, until the ratooned plants were ready for harvest. The result showed a large variation in the ratoon performance among NERICA, with ratoon ability ranging from 13% (NERICA 2) to 39% (NERICA 14 and 17). Total grain yield (main plus ratoon) was significantly different (p<0.001) from that of the main harvest. The maximum total grain yield was 6.14 t ha-1 for NERICA 2 followed by NERICA 15 and 11 (6.02 and 6.01 t ha-1, respectively). The yield increase of more than 1.5 t ha-1 (the average yield of upland rice in Sub-saharan Africa) recorded in NERICA, with no additional input was very encouraging. This will presumably increase with additional input during ratoon. Therefore, NERICA rice is able to fructify twice, hence farmers can harvest more rice and make more profit.
  C. Santos , C. Agbangla , D. Chougourou , A. Togola , B. Cisse , I. Akintayo and F. E. Nwilene
  Twenty one rice varieties including 18 upland NERICAs and their parents (two Oryza sativa and one O. glaberrima) were screened for resistance to two primary storage pests: Sitophilus oryzae and Sitotroga cerealella, using the “no choice” infestation method. Resistance of rice varieties was assessed based on the adult’s population obtained from first generation of each species and also on the weight loss recorded on infested samples. Results revealed that adult progenies from S. oryzae and weight loss were very low on paddy and fairly high on husked rice. Results also suggested that glumes are one main parameter conferring the resistance to S. oryzae. Differential responses of rice varieties to S. cerealella were observed. Of the 18 NERICA tested, NERICA6, 14, 4, 3, 15 and 16 were tolerant in increasing order, whereas only NERICA9 and 11 were susceptible. The Oryza glaberrima parent CG 14 was resistant to the insect while the O. sativa parents WAB 56-50 and WAB 56-104 were susceptible. Progenies resistance to the insect may have been provided by the parent CG 14. The implications of the findings and the way forward were discussed.
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