نتایج جستجو برای: leaf width

تعداد نتایج: 150151  

2018
Lars Jaffke O-joung Kwon Jan Arne Telle

We give a first polynomial-time algorithm for (Weighted) Feedback Vertex Set on graphs of bounded maximum induced matching width (mim-width). Explicitly, given a branch decomposition of mim-width w, we give an nO(w)-time algorithm that solves Feedback Vertex Set. This provides a unified algorithm for many well-known classes, such as Interval graphs and Permutation graphs, and furthermore, it gi...

Journal: :Development 1999
T Foster B Veit S Hake

Maize leaves are organized into two major domains along the proximal-distal axis: a broad flat blade at the distal end of the leaf, and a narrow, thickened sheath that encircles the stem. Between the blade and sheath are two wedge-shaped tissues called auricles, and the ligule, an epidermally derived fringe. Members of the Knotted1 (Kn1) family of mutations change the shape and position of both...

Journal: :Radiation Oncology (London, England) 2009
James A Tanyi Paige A Summers Charles L McCracken Yiyi Chen Li-Chung Ku Martin Fuss

PURPOSE To assess the impact of two multileaf collimator (MLC) systems (2.5 and 5 mm leaf widths) on three-dimensional conformal radiotherapy, intensity-modulated radiotherapy, and dynamic conformal arc techniques for stereotactic body radiation therapy (SBRT) of liver and lung lesions. METHODS Twenty-nine SBRT plans of primary liver (n=11) and lung (n=18) tumors were the basis of this study....

2011
Dayananda Shamurailatpam Sharma Prabhakar M Dongre Vaibav Mhatre Malhotra Heigrujam

Physical and dosimetric characteristics of HDMLC were studied for SRS6, 6, and 10 MV X-rays from Novalis Tx. This in-built tertiary collimator consists of 60 pairs (32 × 0.25 cm; 26 × 0.5 cm and 2 × 0.7 cm) of leaves. Properties of HDMLC studied included alignment, readout and radiation field congruence, radiation penumbra, accuracy and reproducibility of leaf position and gap width, static and...

2011
Kianoush Nikoumanesh Ali Ebadi Mehrshad Zeinalabedini Yolanda Gogorcena

In this study, in order to know the variability for a rootstock breeding program genetic diversity and relationships among 55 Iranian almond genotypes and seven related Prunus species were investigated. Morphological and molecular analyses were used. Principal component analysis showed that three components explained 67.6% of the total morphological variation for the first year and 68.06% for t...

2008
Mark van Kleunen Anna Meier Moritz Saxenhofer Markus Fischer

Aims Floral traits are frequently used in traditional plant systematics because of their assumed constancy. One potential reason for the apparent constancy of flower size is that effective pollen transfer between flowers depends on the accuracy of the physical fit between the flower and pollinator. Therefore, flowers are likely to be under stronger stabilizing selection for uniform size than ve...

African yam bean (Sphenostylis stenocarpa) is an underexploited legume with the potential of becoming an alternative food staple to alleviate the problem of food security. An assessment was carried out on the growth and yield of AYB affected by Telfairia mosaic virus (TeMV) Infection. Telfairia mosaic virus caused severe mosaic, leaf distortion and malformation on AYB. Analyses of results revea...

2017
Leshan Du Haiyan Liu Ming Yan Junmin Li Junsheng Li

To evaluate the population variation, individual plasticity, and local adaptability of Solidago canadensis in response to shade treatment, we conducted a common pots experiment with a total of 150 ramets (5 genets, 15 populations, and 2 treatments) subjected to both control (natural light) and shady treatment (10% of natural light). Shade treatment significantly reduced growth and content of de...

Journal: :journal of agricultural science and technology 0
m. s. mohammed school of agricultural, earth and environmental sciences, african center for crop improvement, university of kwazulu-natal, south africa. h. a. shimelis school of agricultural, earth and environmental sciences, african center for crop improvement, university of kwazulu-natal, south africa. m. d. laing school of agricultural, earth and environmental sciences, african center for crop improvement, university of kwazulu-natal, south africa.

bambara groundnut [vigna subterranea (l.) verdc.] is an indigenous legume crop in africa. it has comparable value to other legumes for food and nutritional security in the continent. however, small-scale farmers continue cultivating unimproved landrace varieties over the production areas in sub-saharan africa. bambara groundnut landraces exist as heterogeneous mixtures of seeds, which typically...

Journal: :علوم گیاهان زراعی ایران 0
زین العابدین شهادتی مقدم محمدرضا صلواتی میبدی نقی حسین زاده فشالمی

nowadays, tobacco is considered as one of the important world industrial plants. in the present study, for a creation of somaclonal variation, calli were produced on ms medium supplemented by 2 mg/l of naphthalene acetic acid (naa) and then regenerated on ms medium supplemented with 1 mg/l benzyl amino purine (bap) and 0.1 mg/l of naa. to determine correlations among traits and to fit multiple ...

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