نتایج جستجو برای: flower heads

تعداد نتایج: 36923  

Journal: :Developmental Cell 2002

Journal: :Nature 1972

Journal: :Nature 1881

Journal: :Development 1999
Q Chen A Atkinson D Otsuga T Christensen L Reynolds G N Drews

A screen for mutations affecting flower formation was carried out and several filamentous flower (fil) alleles were identified. In fil mutants, floral primordia occasionally give rise to pedicels lacking flowers at their ends. This defect is dramatically enhanced in fil rev double mutants, in which every floral primordium produces a flowerless pedicel. These data suggest that the FIL and REV ge...

2007
Yosuke HisamaTsu Nobuharu GOTO Koji HasEGaWa Hideyuki sHiGEmORi

We searched for bioactive substances involved in flower bud formation of Arabidopsis thaliana. some significantly decreasing HPLC peaks were detected in the extract of flower buds-forming A. thaliana compared with that of the non-flower bud-forming stage. Compound 1, which corresponded to the most decreased HPLC peak, was isolated from aerial parts of A. thaliana. From NmR and ms data, compound...

Journal: :Journal of Natural Fibers 2023

Natural fibers are being investigated as alternatives to synthetic in composite materials. In this paper, the physical, chemical, thermal, and morphological characteristics of derived from milk thistle flower heads were characterized potential polymer reinforcement material using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning ...

2014
R.Newlin Shebiah S.Sindu Priya

This Paper aims at classification of flower images by means of Gist descriptor and statistical features using SVM classifier. With advances in digital image processing, automated classification of flower images over large categories of dataset is possible by knowing the name of the flower. In case of unknown species name, classification of flower image can be performed by its visual content. Th...

2015
Jun Yang Xiangyang Kang

We compared microsporogenesis and flower development in Eucalyptus urophylla × E. tereticornis. In this study, although microsporogenesis and cytokinesis occurred simultaneously during meiosis of pollen mother cells, we observed a strong asynchronism in different anthers from a flower bud. The developmental period of microsporogenesis in anthers originated from the long thrum before the short t...

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