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International Journal of Advanced Chemistry, 5 (2) (2017) 96-101 International Journal of Advanced Chemistry Website: www.sciencepubco.com/index.php/IJAC doi: 10.14419/ijac.v5i2.8364 Research paper Immobilization of dimethylamine and aniline using soft lignocelluloses material (abelia chinensis sawdust) for controlling striga hermonthica in sorghum field Rindap Timnan Lazwan 1 *, Daben Janet Moses 2 , Angbalaga Rechit Alexander 3 , Dashak Dayil Albert 1 1 Department of Chemistry, Faculty of Natural Sciences, University of Jos, P M B. 2084, Jos, Plateau State, Nigeria 2 Department of Science Laboratory Technology, Faculty of Natural Sciences, University of Jos, P M B. 2084, Jos, Plateau, State, Nigeria 3 Department of Chemistry, College of Education Akwanga, PMB 05 Akwanga, Nassarawa State, Nigeria *Corresponding author E-mail: rindaptimnan@gmail.com Abstract Chemical modifications of lignocelluloses materials are advance development that are fast and convenient to convert the low value woody residues to create channels for controlling the release of organic manure to proffer solutions to farmers in the increasing soil acidity, rapid weed's growth, soil infertility and food scarcity. The study investigates the physic-chemical parameters, and the effect of immobilized nitrogenous bases on oxidized sawdust for controlling Striga hermonthica in the sorghum field. The results indicate that the moisture content increases with increase particle size as water absorption capacity increases with time and size, thereby, ash content decrease with increase size. The control, oxidized and immobilized sawdusts were analyzed using FT-IR and it was clear that pretreated sawdust of 0.08-0. 10M KIO4 oxidized the exposed hydroxyl groups of the lignocelluloses material to the carbonyl group but were unable in 0.04-0.06M KIO4. Likewise, the absorption bands showed that the nitrogenous bases were incorporated while carbonyl absorptions were still observed. The effect of immobilized Dimethylamine concentrations on gradual release on sorghum grows progressively with the absence of S. hermonthica while aniline grows faster than Dimethylamine at 0.5-1.0M then diminished at 1.5M than Dimethylamine. The application of immobilized amines on the sorghum field showed that this invention would enhance sorghum productivity through striga control. Keywords: Chemical Modifications; Immobilization; Nitrogenous Bases; Sorghum and Striga Hermonthica. 1. Introduction The state of developing countries farmers no longer put an interest to take farming as a carrier, business or means of livelihood. The nature of maintaining the expensive equipment’s and managing scientific technologies with the available natural resources has limited the farmers in these areas. In search to curb the high rate of decreasing soil fertility, less retention of nutrients, water and con- stant use of farmland has increased the frequent use of inorganic fertilizers that has form complex chemical and physical changes in the soil (Lal 1998 p. 17, Azam et al. 2008 p. 56). These have helped maintained the wide spread and infestation of crops by annual hemi-parasites weed (Striga hermonthica) of monocotyle- donous plants (sorghum) (Emechebe et al. 2004 p. 215, Dashak & Shambe 2005 p. 4850, Gurney et al. 2006 p. 199). Striga hermonthica (giant witch weed), a parasitic plant native to Ethiopia and Sudan (Musselman 1987 p. 3 ) is known to cause substantial losses in Sorghum, Maize, Millet among the staple foods' production across Africa and South Asia ((Kamara et al. 2008 p. 349, Satish et al. 2012 p. 989). This witch weed affects up to 40% of Africa’s crop production and the annual crop yield loss- es in West African savannas alone account for $7 billion, affecting more than 100 million people (Emechebe et al. 2004 p. 215, Gur- ney et al. 2006 p. 199). S. hermonthica which quickly adapt to different hosts environments, grow well in acidic and in over-used soil (Dashak & Shambe 2005 p. 4851) attaining up to 50% germi- nation under moisture regimes as a permanent wilting point for its host (Sauerborn 1994 p .249). Striga is also responsible for about 20% loss of sorghum in Africa, thus causing food scarcity experi- enced in African countries (Lagoke et al. 1991 p. 3). Several striga controls have been reported of which some are: improved field-testing methodology; field inoculation with striga seeds (Haussmann et al. 2000 p. 273), susceptible and host re- sistant varieties (Ejeta et al. 2007 p. 216, Menkir & Kling 2007 p.674); evaluation in specific, adjacent infested and uninfested plots (Haussmann et al. 2000 p. 273, Badu-Apraku et al. 2010 p. 262). Among others are characterization of crop germplasm and improvement of available sources of resistance; transfer and pyr- amiding of resistance genes into adapted, farmer-selected cultivars (Haussmann et al. 2000 p. 273, Kamara et al. 2008 p. 349). Devel- opment of string-resistant parent lines for hybrid or synthetic cul- tivars and random-mating populations with multiple sources of resistance genepool (Haussmann et al. 2000 p.273, Kounche et al. 2013 p.82). Though other laboratory assays are needed (Hauss- mann et al. 2000 p. 273) an integrated control is advised (Badu- apraku 2010 p. 261). The agar-gel assay is an excellent tool to screen host genotypes in the laboratory for low production of the striga seed germination stimulant (Haussmann et al. 2000 p. 273). Inheritance of traits associated with resistance to striga spp has