Browsing by Author "Yusuf, S.Y."
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Item Alleviation of Drought Stress in Tomato (Solanum lycopersicon) Using Organic Mulch(NIPES Journal of Science and Technology Research, 2022) Isiaka, Kareem; Ilerioluwa, O.I.; Yusuf, S.Y.; Lawal, Mujidat Temidayo; Abdulkareem, K.A.; Olayinka, B.U.Despite the importance of tomato in human nutrition, occurrence of drought stress constitutes a major bane to its bountiful production. Therefore, this experiment was conducted to determine the effectiveness of organic mulch in improving growth, yield and quality of water stressed tomato. The experiment was laid out in randomized complete block design (RCBD) with three replications. The six treatments used in the experiment were normal irrigation with zero mulch, drought stress with zero mulch and drought stress with mulch at the rates of 10tons/ha, 15tons/ha, 20tons/ha and 25tons/ha. The organic mulch material used was maize husk and the tomato variety tested was Platinum 107 F1. Water deficit treatment was imposed at flowering stage (five weeks after transplanting (5WAT)) by applying 50% field capacity as irrigation water. Data were collected on plant height, number of leaves per plant, number of branches per plant, number of flowers per plant and mass of fruit yield per plant. Furthermore, leaf proximate compositions (crude fat, crude protein, crude fibre, ash content and dry matter) and leaf chlorophyll content were determined. All the data collected were subjected to analysis of variance (ANOVA) and significant means were separated using least significant difference (LSD) at 5% probability level. Results from this research work showed that stressed plants without mulch application had a drastic reduction in all the measured parameters. The plants subjected to drought and treated with 20tons/ha mulch showed higher plant height, number of branches and yield as well as chlorophyll, fiber and ash content compared to the plants treated with 10tons/ha, 15tons/ha and 25t/ha mulch. It is, therefore, concluded that 20tons/ha mulch be used for alleviating drought stress condition in Platinum 107 F1 tomato variety in the study area when all the conditions in this research are maintained.Item Effects of charcoal and wood ash on Trogoderma granarium Evert (Khapra beetle) infesting stored groundnut seeds(Faculty of Agricultural Technology, Rufus Giwa Polytechnic, Owo, Ondo State Nigeria, 2019) Yusuf, S.Y.; Musa, A.K.; Uddin II, R.O.; Lawal, M.T.; Mustapha, S.; Olagunju, H.A.Item Pathogenicity and Control of Phomopsis sp. Associated with Yam Rot Using Bark Extracts of Mangifera indica L. and Parinari polyandra Benth.(Al-Hikmah Journal of Pure & Applied Sciences (AJPAS), 2017-04-08) Ahmed, O.; Baba, Halimat S.; Yusuf, S.Y.; Lawal, R.; Adebayo, O.V.; Ojumo, J.OThe antifungal property of Mangifera indica and Parinari polyandra bark extracts against Phomopsis sp. isolated from rotting yam tubers was evaluated. Stock solutions prepared by dissolving 1 g of each extract in 100 ml of sterile water (i.e. 1% w/v) was applied at 1:2, 1:4 and 1:6 (i.e. 1 part of the stock to 2, 4 and 6 parts of the culture medium v/v) in-vitro. The extracts were later applied at 0.5%, 1% and 1.5% w/v as coating on the yam tubers. The plant extracts significantly suppressed the growth of the fungus in vitro and reduced rot development in healthy yam tubers. The percentage inhibition of growth of the test fungus on medium treated with Parinari polyandra bark extract ranged between 10.50 – 21.35 , 19.52 – 43.15 , 29.41 – 50.14 , 33.18 – 51.92 and 27.71 – 47.30 for concentration range between 1:6v/v – 1:2v/v of the stock solution at days 3 , 5 , 7 , 9 and 11 of plating respectively. Percentage inhibition of growth of the fungus on Mangifera indica extract treated medium also ranged between 11.02 – 39.06, 34.93 – 49.32, 34.45 – 52.94, 38.37 – 54.18 and 31.88 – 50.42 for the same concentration range and days after plating respectively. The study showed the potentials of these plant extracts in the control of post harvest rots of yam tubers.