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Posted by Hemanth Raj 5 years, 4 months ago (8696511)
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Yogita Ingle 5 years, 4 months ago (2577571)
Characteristics of Solanaceae Family
The following are the characteristic features of the Solanaceae family:
Vegetative Characters
- Root System: Taproot system.
- Stem: Erect or climber; Solanaceae includes herbs, shrubs, small trees, and climbers.
- Leaves: Alternate, simple or pinnately compound (rarely); exstipulate; reticulate venation.
Floral characters
- Inflorescence: Racemose- terminal or axillary raceme; Cymose- solitary in Solanum.
- Flower: Complete, bisexual, actinomorphic, hypogynous.
- Calyx: Five sepals, gamosepalous; valvate aestivation.
- Corolla: Five petals, gamopetalous, valvate aestivation.
- Androecium: Five stamens, epipetalous; anthers basifixed.
- Gynoecium: Syncarpous, bicarpellary, bilocular, superior ovary, axile placentation.
- Fruit: Berry/ capsule.
- Seed: Numerous, endospermous
Characteristics of Liliaceae Family
The following are the important characteristics of the Liliaceae family.
Vegetative Characters
- Root: Fibrous root system.
- Stem: Erect; Liliaceae includes perennial herbs which propagate through bulbs or rhizomes.
- Leaves: Alternate, simple; exstipulate; parallel venation.
Floral characters
- Inflorescence: Cymose- solitary; umbellate clusters.
- Flower: Complete, bisexual, actinomorphic; hypogynous, perianth present.
- Perianth: Indistinctive sepal and petal; six tepals (3+3), often united tepals; valvate aestivation.
- Androecium: Six stamens in two whorls (3+3).
- Gynoecium: Syncarpous, tricarpellary, trilocular, superior ovary with axile placentation.
- Fruit: Mostly Capsule and sometimes berry.
- Seed: Endospermic seeds.
Posted by Yug Patel 5 years, 4 months ago (9667770)
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Yogita Ingle 5 years, 4 months ago (2577571)
- The arrangement of ovules within the ovary is known as placentation.
- The placentation is of different types namely, marginal, axile, parietal, basal, central and free central.
- In marginal placentation the placenta forms a ridge along the ventral suture of the ovary and the ovules are borne on this ridge forming two rows. Example- pea
- When the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentaion is said to be axile. Example- china rose.
- In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part and ovary become twochambered due to the formation of the false septum. Example- mustard
- In free central, the ovules are borne on central axis and septa are absent. Example- Dianthus
- In basal placentation, the placenta develops at the base of ovary and a single ovule is attached to it. Example – sunflower.
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Meghna Thapar 5 years, 3 months ago (6237)
What is Occupational Structure?
The occupational structure of a nation refers to the percentage of its workforce employed in various economic ventures. To put it in other words, articulating how many of the total working population are employed in agriculture and associated activities and how many of them are involved in manufacturing and service sector can be identified from the occupational structure of the nation.
Occupational Structure in Colonial India
During the colonial period, the occupational structure of India, i.e., the allocation of working people across various industries and sectors, explicated small hint of change. The agricultural sector valued for the highest share of the workforce, which normally prevailed at a high of 70 – 75 % while the manufacturing and the services sectors estimated for only 10 and 15-20 % sequentially. Another outstanding perspective was the growing geographical variation. Parts of the then Madras Presidency (including areas of the present-day states of Tamil Nadu, Kerala, Andhra Pradesh and Karnataka), Bombay and Bengal observed a drop in the dependence of the workforce on the agricultural sector with a corresponding increase in the production and the services sectors. However, there was an increase in the share of the workforce in agriculture during the same time in states such as Rajasthan, Odhisa and Punjab.
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Yogita Ingle 5 years, 4 months ago (2577571)
One Sunday, he smelled something strange. Then he saw smoke coming through the same part of the ceiling. Soon the whole house was engulfed with flames. Somehow they escaped the fire.
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