نتایج جستجو برای: root characteristics

تعداد نتایج: 792443  

Journal: :تولید گیاهان زراعی 0
مجید جیریایی دانشجوی کارشناسی ارشد اگرو اکولوژی، دانشگاه شهید چمران اهواز اسفندیار فاتح عضو هیأت علمی گروه زراعت و اصلاح نباتات دانشکده کشاورزی دانشگاه شهید چمران اهواز امیر آینه بند عضو هیأت علمی گروه زراعت و اصلاح نباتات دانشکده کشاورزی دانشگاه شهید چمران اهواز

in order to evaluation the effect of mycorrhiza and azospirillum on some characteristics of wheat cultivars in pitch stage, an experiment was conducted in the research station of shahid chamran university of ahvaz, iran during in 2012-13. the experimental design was factorial based on randomized complete blocks design with three replications. the treatments including of mycorrhiza fungi in thre...

سرهنگ‌زاده, المیرا, نجفی, نصرت اله,

Salinity and waterlogging are two important abiotic stresses to plants growth and yield in the world. These two stresses can occur simultaneously and have additive effects on plants, including corn, growth. In a greenhouse experiment, the effects of NaCl salinity and waterlogging and their interactive effect on the growth characteristics of forage corn (Zea mays cv. single cross 704) were studi...

Root-knot nematodes cause physiological and anatomical disorders in plants. The present study contains the results of an investigation of the effect of Meloidogyne incognita race2 on the growth of roots and aerial organs of tomato under greenhouse conditions. The experiment in a completely randomized design split split plot on two susceptible (Falat Y) and tolerante (Gina VF) tomatoes variety w...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2002
D J Lanska

OBJECTIVE To evaluate patient characteristics, symptoms, and examination findings in the clinical diagnosis of lumbosacral nerve root compression causing sciatica. METHODS The study involved 274 patients with pain radiating into the leg. All had a standardised clinical assessment and magnetic resonance (MR) imaging. The associations between patient characteristics, clinical findings, and lumb...

Journal: :زیست شناسی خاک 0
مرجان اثباتی کارشناس ارشد بیوتکنولوژی کشاورزی دانشگاه آزاداسلامی واحد علوم وتحقیقات عباس اخوان سپهی دانشیار دانشگاه آزاد اسلامی واحد تهران شمال احمد اصغر زاده استادیار موسسه تحقیقات خاک و آب کشور محمود خسرو شاهلی استاد دانشگاه آزاد اسلامی واحد علوم و تحقیقات

azospirillum is a well-studied genus of plant growth-promoting bacteria. phytohormone production by pgpr is considered as one of the effective factor to increase the tomato yield significantly. in order to study the effect of azospirillum inoculant on on growth characteristics and yields of tomato, three strain of azospirillum were isolated, identified, and purified from tehran suburb soils. to...

Journal: :Environmental entomology 2010
Jeanne A Robert B Staffan Lindgren

Surveys were conducted on regenerating stands of lodgepole pine to determine the relationship between root deformation and susceptibility to attack by the Warren root collar weevil, Hylobius warreni Wood. The total number of trees attacked by H. warreni did not differ between planted and natural trees. A matched case-control logistic regression suggested that root cross-sectional area was more ...

2004
Douglass F. Jacobs John R. Seifert

—Numerous authors have reported on the importance of the number of firstorder lateral roots (FOLR) when evaluating the morphological quality of nursery hardwood seedlings. Studies have shown that seedlings with a greater quantity of FOLR outperform seedlings with a lesser quantity of FOLR in the field. However, the FOLR measure may be limited in its ability to quantify root system morphology. A...

Journal: :Plants 2015
Lesley A Judd Brian E Jackson William C Fonteno

The study, characterization, observation, and quantification of plant root growth and root systems (Rhizometrics) has been and remains an important area of research in all disciplines of plant science. In the horticultural industry, a large portion of the crops grown annually are grown in pot culture. Root growth is a critical component in overall plant performance during production in containe...

Journal: :آب و خاک 0
سحر اخوان محمود شعبانپور مسعود اصفهانی

in order to study the effect of soil compaction on root and shoot growth of wheat plants (shahriar variety), a greenhouse pot experiment was conducted in guilan university. the study design was factorial with completely randomized in three replications. treatments included three compaction levels; (normal compaction, compaction of ten percent and twenty percent) and two type of soil texture (cl...

پایان نامه :0 1371

in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.

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