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العنوان
Floral Morphology of selected Species of Brassicaceae /
المؤلف
Hussein,Mariam Ibrahim.
هيئة الاعداد
باحث / Mariam Ibrahim Hussein
مشرف / Abd El-Salam Mohamed Al-Nowaihi
مشرف / Mohamed El-Sayed Tantawy Khalifa
مشرف / Magdy Mohamed Mourad Hussein
مشرف / Usama Kamal Abdel-Hameed
تاريخ النشر
2016
عدد الصفحات
330p.:
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
علوم النبات
تاريخ الإجازة
1/1/2016
مكان الإجازة
جامعة عين شمس - كلية العلوم - النبات
الفهرس
Only 14 pages are availabe for public view

from 330

from 330

Abstract

We have been studying the floral characteristics for 25 taxa
(21 wild and 4 cultivated) of family Brassicaceae aim to search
for the interrelationships between the taxa and the possibility of
exploiting the results in the separation of species.
The anatomy of the flowers was recorded through the
vascularization of different whorls of the flower and the
possibility of strengthening it in the separation of the species
and compare the results of the foregoing, in some studies on the
family Brassicaceae. The practical works follow the usual steps
in the preparation, stain, draw and photograph the samples. This
has been possible to achieve the following:
1. The pedicle vasculature is either continuous siphonostelic in
ten taxa or dissected in the remaining studied taxa.
2. The calyx vasculature in the majority of the taxa under
investigation is three-traced and dependent. The sepal
median bundle arises directly from the central stele either in
a form of complex or not.
3. The petal supplied by a single bundle furtherly ramifies in a
higher level inside the petal tissue and come from a complex.
4. The number of stamens is either two or six. The vasculature
of the stamens is one-traced and either arising directly from
the central stele, in the form of a complex or both of them.We have been studying the floral characteristics for 25 taxa
(21 wild and 4 cultivated) of family Brassicaceae aim to search
for the interrelationships between the taxa and the possibility of
exploiting the results in the separation of species.
The anatomy of the flowers was recorded through the
vascularization of different whorls of the flower and the
possibility of strengthening it in the separation of the species
and compare the results of the foregoing, in some studies on the
family Brassicaceae. The practical works follow the usual steps
in the preparation, stain, draw and photograph the samples. This
has been possible to achieve the following:
1. The pedicle vasculature is either continuous siphonostelic in
ten taxa or dissected in the remaining studied taxa.
2. The calyx vasculature in the majority of the taxa under
investigation is three-traced and dependent. The sepal
median bundle arises directly from the central stele either in
a form of complex or not.
3. The petal supplied by a single bundle furtherly ramifies in a
higher level inside the petal tissue and come from a complex.
4. The number of stamens is either two or six. The vasculature
of the stamens is one-traced and either arising directly from
the central stele, in the form of a complex or both of them.5. The vasculature of the ovary; two dorsal, two fused ventral
masses and four lateral carpellary bundles (either from the
central stele or from the splitting of the dorsal carpellary
bundles).
6. The false septum between the two carpels has three forms;
open, fused or partially fused with or without bundles. And
its rule in the explanation of the bi- and tetra-carpellary
theory.
7. There are four types of the nectaries; annular type, 8-type, 4-
type and 2-type. Whatever the shape of the nectaries, they
are vascularized in the majority of the studied taxa.