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Allelopathic Potential of Poplar (Populus deltoides L.) Leaves Aqueous Extract on Cereal Crops

Allelopathic Potential of Poplar (Populus deltoides L.) Leaves Aqueous Extract on Cereal Crops

Iqtidar Hussain1*, Shakeel Ahmad Jatoi2, Muhammad Jawad Nazir1, Ehtesham Ul Haq1, Faheem Abbas1 and Muhammad Saqib Raza Shah1

1Department of Agronomy, Agriculture Faculty, Gomal University, D.I. Khan, Khyber Pakhtunkhwa, Pakistan; 2Bio-Resources Conservation Institute, National Agriculture Research Centre, Islamabad-45500, Pakistan.

 
*Correspondence | Iqtidar Hussain, Department of Agronomy, Agriculture Faculty, Gomal University, D.I. Khan, Khyber Pakhtunkhwa, Pakistan; Email: iqtidarhussain453@yahoo.com 

ABSTRACT

The phytotoxic impact of functional allelopathy from perennial plants (trees) surrounding our crops in the field is our focus in agroforestry. To quantify its severity, the phytotoxic impact of popular (Populus deltoides L.) leaves aqueous extract was determined in cultivated oat (Avena sativa L.), maize (Zea mays L.), rice (Oryza sativa L.), pearl millet (Pennisetum glaucumL.), bread wheat (Triticum aestivum L.) and sorghum [Sorghum bicolor (L) Moench. Response of aqueous leaves extract was assessed through various agronomic and physiological parameters including number of plants emerged, leaves per plant, chlorophyll content, root and shoot length, plant fresh and dry biomass were studied. The strong phytotoxic effect of aqueous extract on all the studied parameters was recorded when applied @ 25 g L-1(w/v). The data revealed that aqueous extract produced an inhibitory effect on all the crops’ growth parameters studied. It is recommended that unplanned planting of poplar (P. deltoides L.) around the cereal crop fields should be avoided in order to obtain optimum crop population and finally the grain yield.

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Pakistan Journal of Agricultural Research

September

Vol. 35, Iss. 3, Pages 477-577

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