Mouzahem ALDahoul^(1)*     

(1). GCSAR, The Agricultural Scientific Research Center in Salamieh, Hama, Syria.

(*Corresponding author: Mouzahem Mohammad ALDahoul, E-mail: m.dahool1975@gmail.com)

Received:  11/04/2021                   Accepted:9/05/2022

Abstract: 

The survey and classification of weeds species were carried out, as well as the calculation of the density, relative density, frequency, and relative frequency of each weeds species to know the composition of the weed cover and the importance of the prevalent species in some fields of lentil at Salamieh region, Hama, Syria during the 2017/2018 and 2018/2019 agricultural seasons. The results of the study showed that 12, 21 species of weeds were surveyed, which belong to 10, 19 genders distributed among 8, 14 families in the 2017/2018 and 2018/2019 agricultural seasons, respectively. The proportion of monocotyledon species was very small, as it recorded 8.33%, 9.52%, while those of dicotyledon were more abundant, recording 91.67%, 90.48%, and most of the weeds were annuals with a percentage of 100.00%, 85.71%, while the perennial weeds were present Few recorded 0.00%, 14.29%, in the two seasons, respectively. Most of the weeds found in lentil fields in the two growing seasons were followed by the Brassicaceae family, which included 3 and 5 species respectively, followed by the two families, Chenopodiaceae and Papaveraceae, with two species each respectively. The most dense and frequent species of weeds were volunteer barley (Hordeum vulgare L.) with a density of 9.67, 9.83 plants.m^-2 and white mustard (Sinapis alba L.) with a density of 5.67, 6.00 plants.m^-2, and their frequency was 100.00%, respectively.

Keywords: survey, weed, lentil, density, frequency, salamieh, Syria.

Full paper in Arabic: pdf