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A Comparative Study of Soil Weed Seed Bank Determination in Pothwar Region by using Different Methodologies

A Comparative Study of Soil Weed Seed Bank Determination in Pothwar Region by using Different Methodologies

Mubashir Hussain1,Safdar Ali1, Muhammad Naveed Tahir1, Ghulam Abbas Shah1, Ijaz Ahmad2*, Muhammad Aqeel Sarwar3 and Sohail Latif4

1Department of Agronomy, Pir Mehr Ali Shah, Arid Agriculture University, Rawalpindi, Pakistan; 2Ecotoxicology Research Institute, National Agricultural Research Centre Islamabad, Pakistan; 3Crop Sciences Institute, National Agricultural Research Centre, Islamabad, Pakistan; 4Research Farm Crops, Agriculture Department, AJ and K, Baldmas District Kotli, Pakistan.



Soil weed seed bank is a natural source for weed infestation. Determination of soil weed seed bank has primary importance to get complete picture of weed seed reservoir in the soil profile. An experiment was conducted at University Research Farm, Chakwal Road, Rawalpindi to compare the techniques for determination of soil weed seed bank during winter 2012-2013 under rainfed conditions of Pothowar. Soil samples for the weed seed bank analysis were taken from the experimental field before wheat sowing from 0-10 cm, 11-20 cm and 21-30 cm soil depth. Two soil weed seed bank determination techniques were compared viz., sieving method and seedling emergence method. The data were collected on the seed density m-2, seed frequency, diversity of weed species and relative importance value. The input and output data was also collected to find out the socioeconomic feasibility of the techniques. The comparative analysis of seed bank extraction methods revealed higher weed seeds density, weed frequency with more diversity of weed species under sieving method in comparison to seedling emergence method. Therefore, sieving method was considered superior over seedling emergence method. The feasibility analysis of seed bank extraction methods indicated that sieving was cost-effective, less time consuming, more user friendly with higher accuracy over seedling emergence method. 

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Pakistan Journal of Agricultural Research


Vol. 33, Iss. 4, Pages 692-956


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