Plant Biology

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Plant Biology

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End date: 2022

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    Biochemical evaluation of mutant genotypes of Sesamum indicum for the development of improved varieties
    (Botanica Lithuanica, 2022-12-21) Audu M.A.I; Idris Y.; Muhammad L.M.; Falusi O.A.; Salihu I.A.; Okoye C.I.
    The nutritional attributes of sesame, Sesamum indicum, vary substantially and are primarily influenced by the plant’s genetic makeup. This investigation accessed the biochemical composition of sesame mutants from two generations. Seeds of eleven M3 lines were planted in a Randomized Complete Block Design (RCBD) to raise M4 lines, which were advanced to M5 generation. The seeds were harvested at maturity, and their biochemical compositions were quantitatively determined following standard procedures. Results revealed significant diffe rences (p < 0.05) in the biochemical composition of the mutants across the two generations. Exactly 27.27% of the mutants showed a substantial increase in oil composition over their parental varieties at the M4 generation. In comparison, 36.36% of the mutants had higher oil contents than their parental varieties at the M5 generation. The M5 mutants showed significantly (p < 0.05) higher oil content than the M4 mutants. Significant differences (p < 0.05) were observed in the protein content of M4 and M5 mutants, with M4 mutants having higher protein content. Significant differences (p < 0.05) were observed in fibre, carbohydrate, energy, and moisture contents of M4 and M5 mutants, with M5 mutants having significantly higher (p < 0.05) carbohydrate and energy con tents, while no significant difference (p > 0.05) was observed in ash content of M4 and M5 mutants. Results also reveal significant differences (p < 0.05) in anti-nutrients of M4 and M5 mutants with notable reductions in some anti-nutritional properties of some mutant lines. High and stable nutritional attributes are desirable traits in sesame breeding. The identified mutants with desirable traits are potential candidates that could be selected and developed as the first mutant varieties of sesame in Nigeria
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    Effects of Aqueous Leaf Extract of Datura Stramonium on Vegetative Traits of Selected Maize (Zea Mays L.) Varieties in Nigeria
    (East African Scholars Publisher, Kenya, 2020-05-30) Daudu O.A.Y.; Falusi O.A.; Abubakar A.; Abdulsalam H.; Bello T.S.; Audu M.A.I.
    : Datura stramonium contains allelochemicals which have allelopathic properties that have the potential to inhibit or stimulate vegetative plant growth. Aqueous leaf extract of D. stramonium at 25%, 50% and 100% concentrations were applied to determine their effects on plant height, number of leaves per plant, leaf length, root length and internode length of two maize varieties (Sammaz-39 and Oba super-06) under field conditions. Distilled water (0%) served as control.The treated maize seeds were planted in the experimental field and the plots were laid as randomizedcomplete block design (RCBD) replicated three times.Results on the effects of D. stramonium leaf extract were determined for each treatment concentration. Results showed that D. stramonium leaf extract significantly increased plant height of Sammaz-39 at a concentration of 50% at 10WAP and also of Oba super-06 variety at a concentration of 50% at 8 and 10WAP. Number of leaves per plant was significantly decreased at 10WAP in Sammaz-39 at 100% concentration while Oba super-06 variety showed a significant decrease in number of leaves per plant at 50% concentration at 8WAP. The highest leaf length was observed at 25% concentration of D. stramonium leaf extract in Sammaz-39 at 8WAP and at 25% concentration for Oba super-06 at 2, 4, 6 and 8WAP. But at 10WAP, highest leaf length was observed in the control (0%). Root length was significantly increased in treated seeds of the two varieties; highest root length was observed at 50% concentration in both Sammaz-39 and Oba super-06. Internode length on the contrary, was significantly decreased at high concentration of 100% in Sammaz-39 while no significant difference was observed in the internode length of Oba super-06 variety. This study reveals that high concentration (100%) of D. stramonium leaf extract has inhibitory effects on number of leaves per plant, leaf length and internode length while lower concentrations (25% and 50%) has stimulatory effects on vegetative characters like root length, plant height and leaf length of the two maize varieties examined.