نتایج جستجو برای: lack of optimal growing degree days gdd
تعداد نتایج: 21209518 فیلتر نتایج به سال:
Broomrapes (Phelipanche spp. and Orobanche spp.) are holoparasitic plants that cause tremendous losses of agricultural crops worldwide. Broomrape control is extremely difficult and only amino acid biosynthesis-inhibiting herbicides present an acceptable control level. It is expected that broomrape resistance to these herbicides is not long in coming. Our objective was to develop a broomrape con...
nowadays,tourism industry considered as one of the main sources of income of a country.unfortunately and despite of owning plenty of cultural historical and natural attractions, iran has not reached to a proper position in this field. besides, the historical cities of a country are considered as the income resource and national wealth of it. qazvin with a rich cultural precedent, have suitable ...
This study was carried out under field conditions in Adana, Turkey 2018 and 2019 to determine the critical period for weed control sunflower depending on daily growth temperature (GDD) species. A log-logistic model with four parameters used relationship between relative crop yield both increased intervention time length of weed-free periods. In addition, dominant weeds densities were determined...
nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...
A field trial with different sowing windows of the maize crop was done in Eastern Block Farm Tamil Nadu Agricultural University, Coimbatore, Nadu, India. The were scheduled mid every month for four seasons. treatments Kharif (2019) – June 15th, July and August 15th; Rabi (2019-2020) September October November Late (2020-2021) December January February Summer (2021) March April May 15th. agromet...
Determining of chilling and heat requirements of olive cultivars growing in Fars Province is important for the selection of cultivars that will exhibit satisfactory growth and development. The purposes of this study were determining the chilling and heat requirements of olive and comparison of Utah and Positive Utah Chill unit (PCU) models for determining the chilling requireme...
the purpose of the present study was to investigate the relationship between fear of negative evaluation (fne) and communication strategies (css) among iranian efl learners. it was aimed to examine the differences in the use of communication strategies between speakers with high or low degree of fear of negative evaluation. the current study was a case study consisting of 10 english learners at...
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