نتایج جستجو برای: leaf shape

تعداد نتایج: 273393  

2018
Hoshang Kolivand Bong Mei Fern Mohd Shafry Mohd Rahim Ghazali Sulong Thar Baker David Tully

In this paper, we present a new method to recognise the leaf type and identify plant species using phenetic parts of the leaf; lobes, apex and base detection. Most of the research in this area focuses on the popular features such as the shape, colour, vein, and texture, which consumes large amounts of computational processing and are not efficient, especially in the Acer database with a high co...

Journal: :Journal of economic entomology 2002
Chan-Chi Chu Eric T Natwick Thomas J Henneberry

We compared smooth-leaf okra- and normal-leaf upland cotton (Gossypium hirsutum L.) strains and cultivars for susceptibility to colonization by Bemisia tabaci (Gennadius) biotype B. Experiments were conducted at seven field sites, five at Holtville, CA, and two at Maricopa, AZ, during 1996-2000. Okra-leaf strains and cultivars, as a group, had lower numbers of adults, eggs, and nymphs compared ...

Journal: :علوم باغبانی ایران 0
سید عبدالله افتخاری محمدرضا حسندخت محمدرضا فتاحی مقدم عبدالکریم کاشی

an investigation was conducted to determine the genetic diversity among 44 iranian spinach (spinacia oleracea l.) landraces using 21 morphological characteristics under open field conditions. according to data analysis results, significant differences were found among landraces in vegetative traits at 1 and 5% levels. results showed that tabriz landrace had the highest percentage of female plan...

Journal: :International Journal of Electrical and Computer Engineering (IJECE) 2017

Journal: :Plant physiology 2017
Birgit Möller Yvonne Poeschl Romina Plötner Katharina Bürstenbinder

Pavement cells (PCs) are the most frequently occurring cell type in the leaf epidermis and play important roles in leaf growth and function. In many plant species, PCs form highly complex jigsaw-puzzle-shaped cells with interlocking lobes. Understanding of their development is of high interest for plant science research because of their importance for leaf growth and hence for plant fitness and...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
فاطمه منصورقناعی فارق التحصیل کارشناسی ارشد اصلاح نباتات دانشگاه گیلان حبیب اله سمیع زاده لاهیجی دانشیار دانشکده علوم کشاورزی دانشگاه گیلان بابک ربیعی استاد دانشکده علوم کشاورزی دانشگاه گیلان مرداویج شعاعی دیلمی کارشناس موسسه تحقیقات توتون گیلان

this research which aims to survey the relation between tobacco leaf yield and its components is done by using 118 varieties of tobacco in a research farm of guilan tobacco research institute. regarding to five random selections of plants, twenty three traits of each variety were evaluated. correlation between dry matter of leaf yield with plant height, stem diameter, leaf length, leaf width, l...

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