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Articles by M.A. Adebisi
Total Records ( 3 ) for M.A. Adebisi
  A.A. Makinde , N.J. Bello , F.O. Olasantan , M.A. Adebisi and H.A. Adeniyi
  Seasonality and crop combination effects performance of two sorghum cultivars in sorghum/maize/okra intercrop in a forest-savanna transition zone of Nigeria was investigated. Total 5 phenological stages of sorghum formed the basic unit of time for the investigation. During these phenological stages, agroclimatological indices were measured daily and processed into 10 days averages likewise selected agronomic parameters of the components crops were taken. The plants were intercropped in simple Randomized Complete Block Design (RCBD) fitted into split plot arrangements with three replicates in two field trials. The results showed that the season 2010 crops had relatively longer growth duration, received more rainfall than season 2009 (692 vs. 487.2 mm) while 2009 experienced warmer temperature during establishment cum early vegetative stage than 2010 season (33.2 vs. 32°C) and (28.5 vs. 27°C) during the reproductive phase for season 2009 and 2010, respectively. The mean grain yields of sorghum cultivars were significantly higher in the season 2009 especially in okra combination than in the season 2010. Perhaps, this was due to higher mean soil temperature of 28 and 26°C at 5 and 20 cm in 2009 season compared with season 2010 when mean soil temperature was 27 and 25°C at 5 and 20 cm, respectively.
  M.A. Adebisi , T.O. Kehinde , A.W. Salau , L.A. Okesola , J.B.O. Porbeni , A.O. Esuruoso and K.O. Oyekale
  Seed size is a component of seed quality which has impact on the performance of crop and variations exist in seed sizes among varieties. Seed size is a key factor in crop improvement. However, scarce information is available on relationship between seed size, seed quality and yield characters in elite tropical soybean. Therefore, the study was initiated to determine the influence of seed size on the seed quality traits, seed yield and yield components of five tropical soybean varieties. Seeds of each variety were graded into large (S1), medium (S2) and small (S3). The graded seeds were tested in the laboratory for seed germination and 100 seed weight and the same seed lots was then grown on the field and evaluated for seedling emergence, seed yield and yield characters. Variety TGx1485-ID consistently displayed superior 100- seed weight of between 12.18 and 16.64 g before sowing at each of the three seed sizes. M-351 variety with large seed size had maximum seed germination (100%) in all the three classes of seed and seedling emergence in large (95%) and medium seeds (93%). Lots with small seed size had maximum seed germination (97%) and emergence (90%) while those with large seed size produced the highest seed per plant (88), pods per plant (54) and seed yield per plant (9.72 g). It is suggested that seed grading could be done to separate small seeds for superior seed quality and large seed size for high seed yields.
  M.A. Adebisi , T.O. Kehinde , M.A. Abdul-Rafiu , O.A. Esuruoso , O.D. Oni and O. Ativie
  Seeds uniformity and seedling establishment are major problem in pepper production in developing countries and have great impact on production quality and performance. Seed enhancement technology like hydropriming can be done to address this gap. A study was initiated to determine the physiological quality of three Capsicum species (Capsicum annuum, Capsicum frutescens and Capsicum chinense) in relation to seed density and hydropriming treatment durations. In the first experiment, fresh ungraded seeds were subjected to different hours of hydropriming durations with second experiment light and heavy density seed lots were subjected to the same hydropriming durations. Seedling emergence, energy of emergence, seedling vigour index and emergence rate were evaluated in the experiments. The result revealed that among the ungraded, light and heavy density seed lots, Capsicum chinense had superior seedling emergence, energy of emergence, seedling vigour index and emergence index. Hydropriming for 0 to 12 h resulted in lower days to emergence. Hydropriming of light density seeds gave high seedling emergence in the three Capsicum species compared to hydropriming of heavy density seeds. An increase in hydropriming durations of the light density seeds resulted in an increase in the seedling emergence, energy of emergence, seedling vigour and emergence index. Positive and significant relationships were obtained between seedling emergence or energy of emergence and seedling vigour index in each of the three Capsicum species over the hydropriming durations. Therefore, the study suggests the use of hydropriming as a simple and cost-effective strategy in pepper production especially in developing countries.
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