A field experiment was carried out at Ismailia Research Station, Ismailia Governorate from 2020-2022 to improve the growth of Khaya senegalensis and Swietenia mahagoni by using a combination of mineral fertilizer (NPK...A field experiment was carried out at Ismailia Research Station, Ismailia Governorate from 2020-2022 to improve the growth of Khaya senegalensis and Swietenia mahagoni by using a combination of mineral fertilizer (NPK) and biological fertilizer (Azotobacter chroococcum, Bacillus megatherium, and Bacillus circulant) as recommended dose under new sandy soils conditions. Split plot designed with four treatments (Control, (50% Mineral fertilizer (M.) + 50% Biological fertilizer (Bio.)), 100% M. and 100% Bio.) of each species. Vegetative growth, leaf area, tree biomass, stored carbon, basal area, tree volume, and in the soil both of microbial account and mineral content were determined. The experimental results showed no significant differences between studied species among the most studied parameters except for Khaya senegalensis which gave the highest significant difference in root biomass and below-stored carbon than Swietenia mahagoni. Evidently, the highest significant growth parameters were 100% mineral fertilizer followed by (50% M. + 50% Bio.) as compared with control. No significant difference between 100% M. and (50% M. + 50% Bio.) of shoot dry biomass (15.19 and 12.02 kg, respectively) and above-stored carbon (0.28 and 0.22 Mt, respectively). Microbial account and mineral content in soil were improved after cultivation of tree species compared to before planting and control, especially with 50% mineral fertilizer and 50% bio-fertilizer treatment. In conclusion, a treatment containing 50% mineral fertilizer and 50% bio-fertilizer has led to the ideal Khaya senegalensis and Swietenia mahagoni growth in sandy soil for cheaper and sustainable.展开更多
Three new compounds,including two diterpenoids,nemoralisins H and I(1 and 2),and a limonoid,2-methoxy khayseneganin E(3),along with four known constituents(4-7),were isolated from the leaves and twigs of Swietenia mah...Three new compounds,including two diterpenoids,nemoralisins H and I(1 and 2),and a limonoid,2-methoxy khayseneganin E(3),along with four known constituents(4-7),were isolated from the leaves and twigs of Swietenia mahagoni.Their chemical structures were elucidated by means of spectroscopic analysis.The cytotoxities of these isolated constituents were assayed.展开更多
Objective:To justify the folkloric use of Swietenia mahagoni(S.mahagoni)seeds,90%ethanolic extract and their aqueous and organic partitioning substances were evaluated for their possible antidiarrhoeal and antimicrobi...Objective:To justify the folkloric use of Swietenia mahagoni(S.mahagoni)seeds,90%ethanolic extract and their aqueous and organic partitioning substances were evaluated for their possible antidiarrhoeal and antimicrobial potentials in vivo.Methods:Crude ethanolic extract of S.mahagoni seeds were subjected and partitioned into fractions using solvents at different polarity.Antimicrobial and antidiarrheal activities were evaluated and subsequently outcomes were corresponded with the conventional standard drugs.Results:The antidiarrheal activity was assessed using mouse model,where unfractionated ethanolic extract significantly reduced,the number,onset,rate and weight of diarrheal episodes.This fraction showed the limited number of defecation episodes of 27.0%and 40.9%at dose of 200 mg/kg and 400 mg/kg body weight respectively and reference drug,loperamide,showed 53%at a dose of 50 mg/kg.All extract fractions exhibited the significant potential to kill or subside the growth of known Gram-positive and Gram-negative bacteria.Conclusions:Ethanolic extract and their aqueous and organic fractious revealed the seeds of S.mahagoni(Linn.)have the potential to be used as a remedy for diarrhea and known pathogenic microbes which ensured the folkloric use of the seeds of S.mahagoni.展开更多
文摘A field experiment was carried out at Ismailia Research Station, Ismailia Governorate from 2020-2022 to improve the growth of Khaya senegalensis and Swietenia mahagoni by using a combination of mineral fertilizer (NPK) and biological fertilizer (Azotobacter chroococcum, Bacillus megatherium, and Bacillus circulant) as recommended dose under new sandy soils conditions. Split plot designed with four treatments (Control, (50% Mineral fertilizer (M.) + 50% Biological fertilizer (Bio.)), 100% M. and 100% Bio.) of each species. Vegetative growth, leaf area, tree biomass, stored carbon, basal area, tree volume, and in the soil both of microbial account and mineral content were determined. The experimental results showed no significant differences between studied species among the most studied parameters except for Khaya senegalensis which gave the highest significant difference in root biomass and below-stored carbon than Swietenia mahagoni. Evidently, the highest significant growth parameters were 100% mineral fertilizer followed by (50% M. + 50% Bio.) as compared with control. No significant difference between 100% M. and (50% M. + 50% Bio.) of shoot dry biomass (15.19 and 12.02 kg, respectively) and above-stored carbon (0.28 and 0.22 Mt, respectively). Microbial account and mineral content in soil were improved after cultivation of tree species compared to before planting and control, especially with 50% mineral fertilizer and 50% bio-fertilizer treatment. In conclusion, a treatment containing 50% mineral fertilizer and 50% bio-fertilizer has led to the ideal Khaya senegalensis and Swietenia mahagoni growth in sandy soil for cheaper and sustainable.
基金supported financially by the National Special Program of Basic Research(SB2007FY400)the Knowledge Innovation Program of CAS(Grant No.Qian-2011,KSCX2-YW-G-038)+1 种基金Foundation of Yunnan Tobacco Industry Group(2010-2012)State Key Laboratory of Phytochemistry and Plant Resources in West China.
文摘Three new compounds,including two diterpenoids,nemoralisins H and I(1 and 2),and a limonoid,2-methoxy khayseneganin E(3),along with four known constituents(4-7),were isolated from the leaves and twigs of Swietenia mahagoni.Their chemical structures were elucidated by means of spectroscopic analysis.The cytotoxities of these isolated constituents were assayed.
基金Supported by the Assistance of Research Section of Department of Pharmacy,World University of Bangladesh(Grant No.WUBPS#09507).
文摘Objective:To justify the folkloric use of Swietenia mahagoni(S.mahagoni)seeds,90%ethanolic extract and their aqueous and organic partitioning substances were evaluated for their possible antidiarrhoeal and antimicrobial potentials in vivo.Methods:Crude ethanolic extract of S.mahagoni seeds were subjected and partitioned into fractions using solvents at different polarity.Antimicrobial and antidiarrheal activities were evaluated and subsequently outcomes were corresponded with the conventional standard drugs.Results:The antidiarrheal activity was assessed using mouse model,where unfractionated ethanolic extract significantly reduced,the number,onset,rate and weight of diarrheal episodes.This fraction showed the limited number of defecation episodes of 27.0%and 40.9%at dose of 200 mg/kg and 400 mg/kg body weight respectively and reference drug,loperamide,showed 53%at a dose of 50 mg/kg.All extract fractions exhibited the significant potential to kill or subside the growth of known Gram-positive and Gram-negative bacteria.Conclusions:Ethanolic extract and their aqueous and organic fractious revealed the seeds of S.mahagoni(Linn.)have the potential to be used as a remedy for diarrhea and known pathogenic microbes which ensured the folkloric use of the seeds of S.mahagoni.
