Yazar "Mennan, H" için listeleme
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Economic thresholds of Avena spp. and Alopecurus myosuroides HUDS. in winter wheat
Mennan, H; Isik, D; Bozoglu, M; Uygur, FN (Eugen Ulmer Gmbh Co, 2002)Avena spp. and Alopecurus myosuroides L. are noxious weed species of many cereal growing regions of Turkey. Aim of the study was to estimate economic thresholds of Avena spp. and A. myosuroides in terms of costs and returns ... -
Economic thresholds of Avena spp., and Alopecurus myosuroides in winter wheat fields
Mennan, H; Bozoglu, M; Isik, D (Pakistan Botanical Soc, 2003)Avena spp. and Alopecurus myosuroides are noxious weeds in many cereal-growing regions of Turkey. The aim of the study was to estimate economic thresholds of wild oat and black grass in terms of costs and returns in different ... -
The effects of depth and duration of burial on seasonal germination, dormancy and viability of Galium aparine and Bifora radians seeds
Mennan, H (Blackwell Verlag Gmbh, 2003)The effects of depth and duration of burial on seasonal germination, primary/secondary dormancy, and viability of Galium aparine and Bifora radians were studied in two experiments. The seeds of both species were buried at ... -
Influence of wheat seeding rate and cultivars on competitive ability of bifra (Bifora radians)
Mennan, H; Zandstra, BH (Cambridge Univ Press, 2005)Bifra is an annual noxious broadleaf weed of winter-sown crops in the Central Anatolia and Middle Black Sea regions of Turkey. This species has become more prevalent in wheat fields in the past three decades because of ... -
Invasive weed species in onion production systems during the last 25 years in Amasya, Turkey
Many weed species are introduced in new region by accident and some of them become component of natural flora. In order to introduce invasive weed species and influence of agricultural practices on weed flora, the results ... -
Natural weed hosts of Apple mosaic virus in hazelnut orchards in Turkey
Sokmen, MA; Yilmaz, NDK; Mennan, H; Sevik, MA (Springer, 2005)A total of 70 weed samples from 31 plant species belonging to 16 families (Apiaceae, Araceae, Araliaceae, Asteraceae, Campanulaceae, Convolvulaceae, Dryopteridaceae, Euphorbiaceae, Geraniaceae, Lamiaceae, Plantaginaceae, ... -
Occurrence of viruses in field-grown pepper crops and some of their reservoir weed hosts in Samsun, Turkey
Arli-Sokmen, M; Mennan, H; Sevik, MA; Ecevit, O (Springer, 2005)Pepper production is affected by several viral diseases in Samsun, Turkey. To determine the identity of these viruses, a total of 313 samples from field-grown peppers were collected during surveys in 1998 and 1999, and ... -
Seasonal cycles in germination and seedling emergence of summer and winter populations of catchweed bedstraw (Galium aparine) and wild mustard (Brassica kaber)
Mennan, H; Ngouajio, M (Cambridge Univ Press, 2006)Catchweed bedstraw and wild mustard each produce two populations per year: a winter population (WP) in June, and a summer population (SP) in September. Experiments were conducted to determine whether the WP and SP differ ... -
Weed populations and pickling cucumber (Cucumis sativus) yield under summer and winter cover crop systems
Ngouajio, M; Mennan, H (Elsevier Sci Ltd, 2005)Cucumber growers are increasingly interested in integrating cover crops into their cropping systems. This study was conducted to measure the effect of summer and winter cover crops on weed populations and cucumber yield. ...