PJB-2018-1746
Screening of five plant species for macro/micro nutrients and heavy metals at various phenological stages
Asghar Ali, Lal Badshah and Farrukh Hussain
Abstract
This study presents the results of chemical analysis of five plant species. A total of 15 minerals were analyzed in these species at pre-reproductive and post-reproductive stages. These included 5 macronutrients i.e. P, K, Mg, Ca and S; 7 micronutrients i.e. Fe, Co, Ni, Cu, Zn, Mo, Mn and 3 trace elements i.e. Na, Si and Ba. Highest values were recorded for Ca while Co and Mo were below detection range in all samples. Based on mean values of all minerals the trend for all minerals in descending order for Aristida cyanantha was Ca > K > S > Mg > P > Fe > Si > Na > Zn > Cu: Ba > Mn, for Andrachne cordifolia Ca > K > Mg > P > S > Fe > Na > Mn > Zn >Ba > Cu > Si > Ni, for Quercus baloot it was found to be Ca > K > Mg > S > P > Fe > Mn > Ba > Si > Na > Zn > Cu > Ni, for Indigofera heterentha var. heterantha it stood as Ca > K > Mg > S > P > Fe > Si > Na > Ba > Mn > Zn > Cu > Ni and for Cotoneaster nummularia it was recorded as Ca > K > Mg > S > P > Fe > Si > Ba > Na > Mn > Zn > Cu > Ni. Factorial analysis confirmed that these minerals varied significantly in both phenological stages.
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