نتایج جستجو برای: diameter of roots

تعداد نتایج: 21169608  

Journal: :Bioscientist 2022

Plant Growth Promoting Rhizobacteria (PGPR) made from the roots of bamboo, mung bean, and putri embarrassment has not yet been applied to bean plants, specifically determine its effect on number, diameter, quality root nodules. Therefore, this study aims explain PGPR fertilizer nodules (Vigna radiata L.) The was carried out by experiment, using a completely randomized design (CRD), which consis...

Journal: :Annals of botany 2012
Saoirse R Tracy Colin R Black Jeremy A Roberts Craig Sturrock Stefan Mairhofer Jim Craigon Sacha J Mooney

BACKGROUND AND AIMS We sought to explore the interactions between roots and soil without disturbance and in four dimensions (i.e. 3-D plus time) using X-ray micro-computed tomography. METHODS The roots of tomato Solanum lycopersicum 'Ailsa Craig' plants were visualized in undisturbed soil columns for 10 consecutive days to measure the effect of soil compaction on selected root traits includin...

Journal: :Tree physiology 2010
Seth G Pritchard Chris A Maier Kurt H Johnsen Andrea J Grabman Anne P Chalmers Marianne K Burke

Loblolly pine (Pinus taeda L.) plantations cover a large geographic area of the southeastern USA and supply a large proportion of the nation's wood products. Research on management strategies designed to maximize wood production while also optimizing nutrient use efficiency and soil C sequestration is needed. We used minirhizotrons to quantify the effects of incorporating logging residues into ...

Journal: :علوم باغبانی ایران 0
علی مومن پور دانشجوی سابق دکتری و دانشیار گروه علوم باغبانی، دانشکدۀ کشاورزی، دانشگاه گیلان، رشت علی ایمانی دانشیار، مؤسسۀ نهال و بذر کرج، کرج داود بخشی دانشیار گروه علوم باغبانی دانشگاه گیلان حامد رضایی استادیار، مؤسسۀ آب و خاک کرج، کرج

scion-rootstock combination and level of salinity affect growth characteristics and concentration of nutrition elements of almond leaves and roots. in this research, effects of salinity stress were investigated on growth characteristics and nutrient concentration of almond leaves and roots by completely randomized design (crd), with two factors, genotype and water salinity with three replicatio...

Journal: :Math. Comput. 2009
Valérie Flammang

Explicit auxiliary functions can be used in the “Schur-SiegelSmyth trace problem”. In the previous works, these functions were constructed only with polynomials having all their roots positive. Here, we use several polynomials with complex roots, which are found with Wu’s algorithm, and we improve the known lower bounds for the absolute trace of totally positive algebraic integers. This improve...

Journal: :Optics express 2014
Lihui Wang Hiromasa Oku Masatoshi Ishikawa

We report an improved method of fabricating a variable focus lens in which an in-plane pretension force is applied to a membrane. This method realized a lens with a large optical aperture and high performance in a low-optical-power region. The method was verified by comparing membranes in a simulation using the finite element method. A prototype with a 26 mm-diameter aperture was fabricated, an...

2016
Tao Sun Lili Dong Lili Zhang Zhijie Wu Qingkui Wang Yuanyuan Li Hongguang Zhang Zhengwen Wang

Characterization of decomposition dynamics of fine roots is essential for understanding vegetation–soil feedbacks and predicting ecosystem responses to future climate scenarios, given their more rapid turnover rates. Using a branch-order classification, we separated the fine root systems of Larix gmelinii into two classes: firstand second-order roots combined into one (lower-order); thirdand fo...

Journal: :Acta odontologica latinoamericana : AOL 2010
Arnaldo Sant'Anna-Júnior Marco A H Duarte Juliane M Guerreiro-Tanomaru Mário Tanomaru-Filho

This aim of this study was to evaluate the root apex of mandibular premolars regarding the presence of main and accessory foramina. The root apexes from fifty extracted mandibular single-rooted premolars were examined by scanning electron microscopy (SEM). The apical openings had their diameter measured and were identified as main or accessory foramina. Double blinded and calibrated examiners a...

Journal: :علوم اجتماعی 0

in this article, the writer, exploring the most important theories of psychologists, anthropologists and sociologists about the origin of religion and roots of religiosity, tries to show that there is no ultimate agreement and explanation about these questions and that the currently working theories are suffering from grave theoretical and/or empirical shortcomings. the writer, however, argues ...

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