نتایج جستجو برای: gdd

تعداد نتایج: 581  

Journal: :به زراعی کشاورزی 0
فریبا میقانی کارشناس رشته شناسایی و مبارزه با علف های هرز، سازمان جهاد کشاورزی یزد، یزد سید محمد میروکیلی مربی، مرکز تحقیقات کشاورزی یزد، یزد محمد علی باغستانی دانشیار، بخش تحقیقات علف های هرز، مؤسسه تحقیقات گیاه پزشکی کشور، تهران

this research was undertaken to determine the comparative phenology of swallow wort (cynanchum acutum) in pistachio orchards and investigate the possibilities of its integrated management as a randomized complete block design with 18 treatments and three replications during 2007. the treatments consisted using paraquat, glyphosate, triclopyr and removine the weed. the results indicated that swa...

2010
Kristopher K. Robison Edward M. Crenshaw

Socio 20 DOI: The Global Digital Divide (GDD) in Internet and related forms of information technologies has gained some press and scholarly attention in recent years. Although the contours and causes of Internet diffusion around the globe are now better understood, a number of questions and avenues remain unanswered or unexplored, particularly concerning the role of socio-demographic structures...

2010
Dong Hyuk Ko Kyung Taec Kim Zhinan Zeng Yinghui Zheng Ya Cheng Juyun Park Jae-hwan Lee Chang Hee Nam

By generating broadband high-harmonic pulses from neon and compensating for attosecond chirp by the material dispersion of argon, the generation of near transform-limited 63 as pulses was achieved. The spectral phase analysis showed that, without proper compensation, the attosecond chirp of the broadband harmonics caused splitting of attosecond high-harmonic pulses in addition to pulse broadeni...

Journal: :The British journal of ophthalmology 1998
K S Lim B D Allan A W Lloyd A Muir P T Khaw

Glaucoma filtration surgery (GFS) has been shown to be more eVective at preventing disease progression than other primary treatment modalities in open angle glaucoma. 2 If it were possible to avoid complications associated with poor flow control, primary GFS would probably be offered more widely. Trabeculectomy, the procedure of choice in conventional GFS, has remained essentially unchanged for...

Journal: :Journal of economic entomology 2009
Rufus Isaacs Steven Van Timmeren

Larvae of the whitemarked tussock moth, Orgyia leucostigma (J.E. Smith) (Lepidoptera: Lymantriidae), defoliate and contaminate blueberries, Vaccinium corymbosum L., in eastern North America, but infestations are often not detected until economic damage has been caused. To improve monitoring techniques and understand the phenology of the whitemarked tussock moth in blueberry, we compared four tr...

2012
Stef Weijers Friederike Wagner-Cremer Ute Sass-Klaassen Rob Broekman Jelte Rozema

Annual stem length growth of the circumarctic dwarf shrub Cassiope tetragona has proven to be a reliable proxy for past and ongoing climate change in the Arctic. This reliability is based on its strong linear relationship with monthly climate parameters. Monthly means are however coarse units for prediction of growth in marginal regions with short growing seasons. Growing degree-days (GDD) are ...

Journal: :Molecular medicine reports 2013
Elaine Doherty Rachel O'Connor Anna Zhang Christina Lim Jennifer M Love Fern Ashton Karen Claxton Nerine Gregersen Alice M George Donald R Love

Global developmental delay (GDD) affects ~1-3% of children, many of whom will also have intellectual disability (ID). Fragile X is the major genetic cause of GDD with mental retardation (MR) in males, accounting for ~20% of all X-linked MR. As Fragile X has serious genetic implications, the overwhelming majority of developmental delay (DD) cases referred to our laboratory are concerned with the...

ژورنال: :علوم گیاهان زراعی ایران 2012
مریم اکرمی وشته سعید وزان مصطفی اویسی محمد عبداللهیان نوقابی

به منظور بررسی زمان رویش علف هرز خاک شیر و سلمه تره مطالعه ای در مزرعه دانشگاه آزاد اسلامی واحد کرج در سال 89-88 انجام شد. در این بررسی پنج مزرعه تحت کشت جو (یک مزرعه)، چغندرقند (یک مزرعه) و گندم (سه مزرعه) مورد بررسی قرار گرفتند. در هر مزرعه بین 3 تا 5 قطعه به طور تصادفی انتخاب و در هر قطعه 3 کادر چوبی ثابت جهت شمارش گیاهچه های علف های هرز نصب گردید. در طول فصل به صورت هفتگی گیاهچه های خاک شیر...

Journal: :IEEE transactions on systems, man, and cybernetics 2023

Decomposition methods play a critical role in cooperative co-evolutionary algorithms (CCEAs) for solving large-scale optimization problems. Although some well-performing decomposition have been designed based on the interactions among variables (IaV), their grouping accuracy is still limited due to poor performance overlapping problems and computational roundoff errors of IaV implementation. To...

Journal: :Horticulturae 2022

Mathematical modeling has been used to describe the characteristics of crop growth. Establishing a growth model can help better understand responses crops their environment and improve efficiency agricultural production. This study establishes empirical models predict greenhouse tomato. In this study, we collected beef tomato (Solanum lycopersicum cv. ‘993?) data over two seasons in Taiwan esta...

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