نتایج جستجو برای: root density

تعداد نتایج: 543758  

Journal: :journal of agricultural science and technology 2010
a. a. maghsoudi moud t. yamaghishi

in drought prone environments wheat crop growth and production depends strongly on the water stored in the soil before anthesis and, although some water remains in the soil after harvest, plants experience water deficit. in order to investigate whether water ex-traction patterns, as a plant feature, have a regulating effect on the amount of water used by them at different soil depths, three whe...

Journal: :iranian journal of pharmaceutical research 0
hossein ashraf department of biology, faculty of sciences, urmia university, urmia, iran. reza heidari department of biology, faculty of sciences, urmia university, urmia, iran. vahid nejati department of biology, faculty of sciences, urmia university, urmia, iran. minoo ilkhanipoor department of biology, faculty of sciences, urmia university, urmia, iran.

diabetes mellitus is a common endocrine disorder. anti-diabetic agents from natural and synthetic sources are available for the treatment of this disease. berberis integerrima is a medicinal shrub used in conventional therapy for a number of diseases. the aim of the present study was to investigate the effects of aqueous extract of berberis integerrima root (aebi) on some physiological paramete...

Journal: :Journal of nematology 1993
L W Duncan D M Eissenstat

Sixteen mature Valencia orange trees on rough lemon rootstock were selected on the basis of approximately equal, naturally occurring populations of Tylenchulus semipenetrans in soil. In March, fruit 1 cm in diameter or less were removed from eight of the trees, which were kept free of fruit for 15 months. In July, 4 months after fruit removal, fibrous root (<2 mm d) mass density of defruited tr...

2017
Manal Maslamani Mai Khalaf Amal K Mitra

The aim of this study was to assess the effect of the quality of the coronal restoration and the root filling on the success of endodontic treatment. Patients treated at Kuwait University Dental Clinics (KUDC) from 2003 to 2014 were contacted by telephone calls. Demographic data and clinical records of patients, including age, gender, the tooth number, and medical history were recorded. Each pa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم 1391

in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...

اصفهانی, مسعود, رائینی, محمود, عبادی, علی اکبر, فلاح شمسی, سیده ارحامه, پیردشتی, همت اله,

     Nowadays, the root characteristics as one of secondary traits along with grain yield are used to response evaluation of rice genotypes under deficit irrigation. Thus, to evaluate the root traits of 40 irrigated rice genotypes to water limited condition a pot experiment was performed in 2014 at Rice Research Institute (Rasht), Iran. Irrigation treatment was applied in two levels include con...

2017
Xiaoyu Zhi Yingchun Han Yabing Li Guoping Wang Lu Feng Beifang Yang Zhengyi Fan Yaping Lei Wenli Du Shuchun Mao

In this study, transplanting cotton seedlings grown in artificial substrate is considered due to recent increased interest in cotton planting labor saving approaches. The nursery methods used for growing cotton seedlings affect root growth. However, the underlying functional responses of root growth to variations in cotton seedling transplanting methods are poorly understood. We assessed the re...

2015
Xiaoli Fu Jianlei Wang Yuebao Di Huimin Wang Eric Gordon Lamb

Variation of total fine-root biomass among types of tree stands has previously been attributed to the characteristics of the stand layers. The effects of the understory vegetation on total fine-root biomass are less well studied. We examined the variation of total fine-root biomass in subtropical tree stands at two sites of Datian and Huitong in China. The two sites have similar humid monsoon c...

G. Ali Roshani, G. Narayanasamy S.C. Datta

A model has been used to simulate potassium (K) uptake by wheat in a pot culture experiment. Three soils from India, namely Alfisol, Inceptisol and Vertisol, were differentially K exhausted by Sudan grass (Surghum vulgare var. Sudanensis) for a period of 280 days and were used to simulate potassium uptake by wheat (Triticum aestivum) and also to predict the amounts of K released or fixed during...

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