نتایج جستجو برای: geometric tolerance

تعداد نتایج: 215615  

A. Amri D. Kahrizi M. Armion R. Mohammadi,

The main objective of this research was to evaluate fifteen durum wheat (Triticum durum) genotypes selected from joint project of Iran/ICARDA for drought tolerance using several indices. The trials were conducted under moderate levels of drought stress for three cropping seasons (2004-2006) in four locations in the highlands western of Iran. The combined ANOVA for grain yield over years and loc...

Journal: :چغندرقند 0
محسن بذرافشان مربی پژوهشی بخش تحقیقات چغندرقند مرکز تحقیقات کشاورزی و منابع طبیعی فارس

for evaluation of drought tolerance of sugar beet genotypes by assessment of the drought tolerance indices under mild and severe stresses, furrow irrigated field experiments were carried out at zarghan research station in 2002 and 2004, and at motahari research station (located inkaraj) in 2002, 2003, and 2004. the experimental design was split plot, with a randomized complete block arrangement...

Journal: :علوم گیاهان زراعی ایران 0
محمد مدرسی استادیار دانشکده کشاورزی و منابع طبیعی دانشگاه خلیج فارس، بوشهر ولی اله محمدی استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران عباسعلی زالی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران محسن مردی دانشیار بخش ژنومیکس پژوهشکده بیوتکنولوژی کشاورزی ایران

continual heat stress affects approximately 7 million hectares of wheat in developing countries, while terminal heat stress is a problem in 40% of temperate environments, which cover 36 million hectares throughout the world. heat tolerance is a quantitative and complex trait that doesn’t have much success in direct selection. for this purpose, however, a thorough understanding of physiological ...

Drought occurrence is one of the most important reasons for reduced yield in crops. At least in arid and semi-arid areas an efficient approach to tackle this problem is to identify and grow tolerant genotypes with the help of drought tolerance indices. The main objective of this research was to study the effects of drought on the performance of six genotypes of lentil in order to evaluate some ...

Journal: :BMJ 1993
M Farrer F L Game C J Albers H A Neil P H Winocour M F Laker P C Adams K G Alberti

OBJECTIVE To examine whether impaired glucose tolerance and raised Lp(a) lipoprotein concentrations are associated in subjects with coronary artery disease. DESIGN Study of two subject populations, one with and one without symptomatic coronary artery disease. Case-control analysis of patients with impaired glucose tolerance and normal glucose tolerance performed in each subject population ind...

2014
A. K. Sahani Pramod Kumar Jain Satish C. Sharma

Geometric dimensioning and Tolerancing (GDT) constitutes the dominant approach for design and manufacture of mechanical parts that control inevitable dimensional and geometrical deviations within appropriate limits. The stack up of tolerances and their redistribution without hampering the functionality is very important for cost optimization. This paper presents a methodology that aims towards ...

1997
Yan Zhuang

The manufacturing and installation of xtures in a factory can be costly, especially for high-volumeproduction runs. Once xtures are installed, part shape can vary due to: (1) tolerance variations because of inherent im-precision in manufacturing processes, and (2) redesign. Variations of type (1) occur constantly and are usually small; variations of type (2) can be large but occur at few distin...

Journal: :international journal of advanced biological and biomedical research 2013
ezatollah farshadfar mohammad mehdi poursiahbidi seyed mehdi safavi

one of the possible ways to ensure future food needs of an increasing world population involves the better water use through the development of crop varieties which need less water and are more tolerant to drought. in order to study the response of twenty landraces of bread wheat to drought stress, an experiment was conducted in a randomized complete block design with three replications under t...

Journal: :تولید گیاهان زراعی 0

in order to study drought tolerance indices and to introduce tolerant maize hybrids in drought conditions, an experiment was conducted at the experimental field of seed and plant improvement institute, in 2009. the experiment was carried out using split-plot in a randomized complete block design (crbd) with three replications. the main plots consisted of three levels of irrigation regimes (irri...

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