«ORTHOTROPOUS» এর সঙ্গে সম্পর্কিত ইংরেজী বই
নিম্নলিখিত গ্রন্থপঞ্জী নির্বাচনে
orthotropous শব্দটির ব্যবহার খুঁজুন। ইংরেজী সাহিত্যে
orthotropous শব্দের ব্যবহারের প্রসঙ্গ সম্পর্কিত বই এবং তার থেকে সংক্ষিপ্তসার।
An orthotropous ovule is one in which no curvature takes place during
development; the micropyle is positioned opposite the funiculus base, and the
vasculature traverses from the base of the funiculus to the chalazal nucellar
region.
2
Handbook of Plant Science
The ovules of gymnosperms and other extinct seed plants typically have only one
coat or integument (unitegmic) and the body of the ovule sits erect on the stalk (
orthotropous). On the other hand, most angio- sperm ovules have double coats ...
3
Pleurocarpous Mosses: Systematics and Evolution
14.2.2 PRIMARY MODULE ORIENTATION The orientation of the plant can be
considered in absolute terms (erect/vertical or creeping/horizontal) or relative to
the substrate (orthotropous or plagiotropous) or to incident light (Bell and Newton
, ...
Angela E. Newton, Raymond S. Tangney,
2007
... becomes horse-shoe shaped in the following ovule (1) Amphitropous (2)
Campylotropous (3) Anatropous (4) Orthotropous (CPMT-UP 1996) The ovules in
Opuntia are (1) Anatropous (2) Orthotropous (3) Hemianatropous (4)
Circinotropous ...
5
Flowering Plants. Eudicots: Berberidopsidales, Buxales, ...
Perianth zygomorphic. Hypogynous glands 4, free. Carpel orientation antero-
posterior; ovules 2, orthotropous;stylestronglycurved;pollenpresen- ter swollen,
strongly oblique; stigma lateral. Fruit drupaceous; seed not winged. One species,
S.
Klaus Kubitzki, C. Bayer, P.F. Stevens,
2007
Ovules 1–2 or many, orthotropous. Fruits drupes or follicles (Placospermum).
Seed winged (Placo- spermum) or wingless. Chromosomes very large, n = 7. –
PLACOSPERMEAE: Placospermum; persoonieae: Acidonia, Toronia, Garnieria,
...
7
The Seeds of Dicotyledons
Orthotropous seeds These are developed from orthotropous ovules and occur in
several and diverse families such as Urticaceae, Proteaceae, Flacourtiaceae,
Piperaceae, and Polygonaceae (Fig. 1(). They have been assumed to be
primitive ...
8
A Flora Of The State Of New-York, Comprising Full ...
Ovary 2 - 3-celled, with 1 — '2 orthotropous ovules in each cell. — Flowers in a
raceme. 4. POLYGONATUM. Perianth tubular, the limb 6-cleit, erect. Stamens
perigynous. Ovary 3-celled, with 2 orthotropous horizontal ovules in each cell.
in the orthotropous ovules, whilst it is at the other extremity in the anatropous
ovules. In the former case, the radicle takes a direction inverse to the hilum (
radicula hilo contraeia [fig. 481]); in the second, it points towards it (radicula hilum
spec ...
Adrien de Jussieu, James Hewetson Wilson,
1849
10
Krishna's Objective Question Bank in Biology
The ovule curvature is more pronounced and the embryo sac becomes horse-
shoe shaped in a/an ovule (1) Amphitropous (2) Campylotropous (3) Anatropous
(4) Orthotropous (CPMT-UP 1996) 22. In pea the ovule is (1) Hemianatropous (2)
...
N Saxena, S Sharma, S Sharma