DETERMINATION OF SOIL PHYSICO-CHEMICAL PARAMETERS AND ASSESSMENT OF THE NUTRITIONAL STATUS OF CULTIVATED HIBISCUSSABDARIFFA (L.)AT DIFFERENT GROWTHCONDITIONS AND STAGES

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dc.contributor.authorMUSA, MUHAMMAD GETSO
dc.date.accessioned2019-04-23T08:23:03Z
dc.date.available2019-04-23T08:23:03Z
dc.date.issued2018-08
dc.descriptionA THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER DEGREE OF SCIENCE IN ANALYTICAL CHEMISTRY DEPARTMENT OF CHEMISTRY, FACULTY OF PHYSICAL SCIENCES, AHMADU BELLO UNIVERSITY, ZARIA, NIGERIAen_US
dc.description.abstractThe researchwasconducted to determinethe nutritional status of Hibiscus sabdariffa at different growthconditions and stages. Three levels of fertilizer treatments; poultry manure (M), 10 tons per hectare, mineral fertilizer (N.P.K. 15-15-15)at 75 kg (F75) and 100 kg (F100) per hectare were used, and the field wasweedthree times within the sampling periods. Field trials were conducted at Teaching and Research Farm of Kano University of Science and Technology, Wudil, Kano State.The treatments were laid out in complete randomizedblock design (CRBD) and poultry manure applied uniformly after land preparation before sowing.Thesamplingwas carried out between July to November, 2014 during the rainy season. Standard methods were used for the plant and soil samples collection, pre-treatment, digestion andanalysis.The results obtained for proximate constituents revealed that at a vegetative stage (SI); the application of M gave the highestcrude protein than the F75 and F100 with levels of 20.910±2.132, 15.322±5.568 and 18.426±0.704 %, respectively.Similarly, the levels of crude fiber recorded in the H. sabdariffa (L) were: 12.047±0.684, 11.47±9.462 and 11.173±0.0542 % for the M, F75 and F100 fertilizers at SI.Furthermore, oxalate content recorded in the H. sabdariffa (L) at SI was: 9.978±2.359, 8.455±3.364 and 8.190±0.213 %, respectively. It was observedthat the moisture content for M, F75 and F100were: 6.812±0.253, 6.989±1.053, and 6.504±0.354 %at SI with F75 having the higher value.The carbohydrateand tannin content at SI when the plant grown with these fertilizers was:32.366±5.555, 42.223±12.184 and 41.960±7.657 %, and 2.685±0.068, 2.756±0.114 and 2.736±0.454 %respectively and F75 obtained with higher value. Moreover, the levels of ash contentin the plant at SI when M, F75 and F100 usedwere: 12.411±0.600, 12.742±0.999 and 13,130±2.564 %, and thecrude fat recorded in the analyzed samples of H. sabdariffa (L) were: 15.455±2.428, 14.402±4.712 and 30.710±0.054.Similarly, calorific values that recorded: 267.400±6.948, 276.445±16.411 and 288.276 kcal in the analyzed sampleat SIwere found to be higher with F100 among the three different fertilizer used. However, at flowering stage (SII), the ash content, crude protein, crude fiber and oxalate contentwere found to be higher when M fertilizer was usedto grow the plant. Nevertheless, F75 fertilizer wasfound higher in the levels ofcarbohydrate and tannin in the analyzedsample at SII. Moreover, whenF100wasused at thisstage,it gave the higher crude fat content.At the maturity stage(SIII), the highestmoisture content was recorded in the plant when M fertilizer was used, while higher carbohydrate and calorific value were obtained by F75 fertilizer atSIII.Conversely, thehighestash, crude protein, crude fiber, crude fat and tannin content were recorded when usingF100 fertilizer in the plant. On the other hand, the elements concentrationsat SI, using thethree different fertilizerswere:Na(448.903±1.55, 114.785±0.32 and 339.001±1.84mg/kg) for M, F75 and F100 respectively, then Mg(7881.915±14.64, 6158.574±2.56 and 4316.644±4.85 mg/kg), K(10563.292±1.40, 10399.679±2.31 and 6173.347±0.56 m/kg), Ca(33192.429±103.13, 13597.588±18.07 and 23600.721±25.90 mg/kg), Zn(30.689±0.02, 30.150±0.04 and 21.833±0.10 mg/kg) and then Cu(18.571±0.04, 10.428±0.01 and 13.222±0.04 mg/kg) for M, F75 and F100 respectively, in which M recorded highest at all.Correspondingly, F100 obtained higher in the levels of Mn andFe from M, F75 and F100 fertilizersused to grow the plant at SI were: 714.81±0.10,586.839±0.80,781.717±1.23 mg/kg and then 750.311±2.30, 922.508±2.49,1377.294 mg/kg, respectively. Generally, lead (Pb) wasnotdetected atSI. At SII, however,the M fertilizer retained the highest value for Na, K, Fe and Zn, and had theleast Pb concentration.At SIII of the plant growth, K, Fe and Znwerefound to be higher when the plant was grown with M fertilizer. More so, the levels of Mg, Mn and Cu where found to be peak at thisstage using F75 in growing the plant, while F100 fertilizer led to higher level of Na, Ca and Pb. Interestingly, the concentrations of the analyzed elements were top in the calyx when F100 was used.Although, statistically the difference was insignificant (at p <0.05) on the elementsconcentration in the calyx when compared among the three fertilizes used in growing the plant. Moreover,during the plant growth some of the nutrient contentsincrease asthe mineralfertilizer concentration increases. However, Mg,K, crude fiberand oxalate content at SI,and also Zn at SI- SIII were foundtodecrease as the mineral fertilizer concentration increases (M>F75>F100). Furthermore,the soil pH at all the stages(SI- SIII), were found to be higher when M fertilizer was used among F75 and F100.The findings of this research indicated thatHibiscus sabdariffa(L) is a nutritious plantof rich dietary minerals and proximate compositions. While, thepoultry manure among the fertilizersstudied had the highestpotentialsfor bettercultivation of nutritiousHibiscus sabdariffa (L) except when crude fat contents is needed, in that caseF100 is recommendable.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/11562
dc.language.isoenen_US
dc.subjectDETERMINATION,en_US
dc.subjectSOIL PHYSICO-CHEMICAL PARAMETERS,en_US
dc.subjectASSESSMENT,en_US
dc.subjectNUTRITIONAL STATUS,en_US
dc.subjectCULTIVATED HIBISCUSSABDARIFFA (L.),en_US
dc.subjectDIFFER DIFFERENT,en_US
dc.subjectGROWTHCONDITIONS,en_US
dc.subjectSTAGES,en_US
dc.titleDETERMINATION OF SOIL PHYSICO-CHEMICAL PARAMETERS AND ASSESSMENT OF THE NUTRITIONAL STATUS OF CULTIVATED HIBISCUSSABDARIFFA (L.)AT DIFFERENT GROWTHCONDITIONS AND STAGESen_US
dc.typeThesisen_US
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