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Articles by Hameed Alsamadany
Total Records ( 2 ) for Hameed Alsamadany
  Hameed Alsamadany , Bolaji Umar Olayinka , Abdulbaki Abdulbaki Shehu , Yahya Alzahrani , Opeyemi Adeoye , Ayinla Abdulaziz , Lukman Tunde Oladokun and Emmanuel Obukohwo Etejere
  Background and Objective: Rice (Oryza sativa L.) is the most important staple food in the world and information on the effects of chemical weed control on rice grain quality is insufficient. Hence this study examined the effects of 2 herbicides pretilachlor and 2,4-dichlorophenoxyacetic acid on the proximate and mineral compositions of Oryza sativa L. Materials and Methods: Field experiment was conducted in evaluating the effect of herbicides on the proximate and mineral compositions of Oryza sativa. The experimental setup was a completely randomized block design with 7 treatments and 4 replicates. The treatments include; T1: Weedy check, T2: 1.5 L ha1 pretilachlor, T3: 2.0 L ha1 pretilachlor, T4: 2.5 L ha1 pretilachlor, T5: 6.0 L ha1 2,4-dichlorophenoxyacetic acid, T6: 8.0 L ha1 2,4-dichlorophenoxyacetic acid and T7: 10.0 L ha1 2,4-dichlorophenoxyacetic acid. Results: Using one-way analysis of variance, the result showed that pretilachlor and 2,4-dichlorophenoxyacetic acid at all application rates considered in this study significantly increased (p<0.05) the proximate parameters of harvested rice grains except for moisture content which was found to increase significantly only in 2,4-dichlorophenoxyacetic acid treated plots. Regardless of the application rates, the 2 herbicides considered significantly enhanced all the mineral contents investigated in this study except for iron content which showed a significant decrease in all the application rates. Conclusion: The results concluded that applications of pretilachlor and 2,4-dichlorophenoxyacetic acid in rice cultivation did a lot more than weed management as they significantly enhanced proximate and mineral compositions of harvested rice grains except for moisture and iron content.
  Bolaji Umar Olayinka , Khadijah Abdulhamid Abdulkareem , Abdulbaki Abdulbaki Shehu , Hameed Alsamadany , Yahya Alzaharani , Ajasa Mariam Oluwafunmilayo , Basit Akolade Adigun , Murtadha Rahmat Biola , Abdul Rahaman Abdullahi Alanamu and Emmanuel Obukohwo Etejere
  Background and Objective: The possibilities of using J. curcas seeds oil as bio-fuel in Nigeria requires large scale production of the plant which can be achieved through plant tissue culture technique. This study aimed to determine the effects of varying concentrations of silver nitrate (AgNO3) solution on the regeneration of J. curcas from cotyledonary petiole explants. Materials and Methods: The experimental layout followed completely randomized design with 20 replications for factors such as varying concentrations of silver nitrate, soaking period and orientation of the explants on MS-media. Data were analyzed using analysis of variance and means were separated using Duncan Multiple Range Test at p<0.05. Results: Application of AgNO3 solution at 10 mg L1 promoted greater percentage shoot buds regeneration and number of shoot buds per explant. Twenty minutes process-time favoured higher shoot buds regeneration and placement of explants in slant position was found to be conducive orientation for regeneration of shoot buds. L-arginine between 7 and 10 mg L1 promoted elongation of regenerated shoot buds. Rooting of the elongated shoot buds was faster in culture receiving 20 mg L1 of indole-3-butyric acid (IBA). Regeneration of shoot buds regeneration was better in in vitro than in in vivo. It took 126-135 to achieve regeneration of plantlets. Conclusion: Recovery of plantlets was better when in vitro cotyledonary petiole explants were treated with 10 mg L1 of AgNO3 solution, soaked for 20 min and placed in a slanted position on MS media and receiving further treatments of 7-10 mg L1 of L-arginine and 20 mg L1 of IBA.
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