Azadirachta indica

Download
Share  Add to  Flag Embed
Views:
 
Category: Education
     
 
License:   All Rights Reserved

Presentation Description

No description available.

Comments

Presentation Transcript

Azadirachta indica : 

Azadirachta indica Scientific classification Kingdom : Plantae Division : Magnoliophyta Order : Sapindales Family : Meliaceae Genus : Azadirachta Species : A. indica

: 

Neem (Azadirachta indica) is a tree in the mahogany family Meliaceae. It is one of two species in the genus Azadirachta Description: Neem is a fast-growing tree that can reach a height of 15-20 m (about 50-65 feet), rarely to 35-40 m (115-131 feet). It is evergreen, but in severe drought it may shedmost or nearly all of its leaves. The branches are wide spread. The fairly dense crown is roundish or oval and may reach the diameter of 15-20 m in old, free-standing specimens.

Slide 3: 

It is native to India,Myanmar, Bangladesh, Sri Lanka, Malaysia and Pakistan, growing in tropical and semi-tropical regions. Other vernacular names include Neem (Hindi, Urdu and Bengali), Arya Veppu (Malayalam), Vepa (Telugu), Bevu (Kannada), Kohomba (Sinhala), Vempu (Tamil), and Indian Lilac (English). In East Africa it is also known as Muarubaini (Swahili), which means the tree of the 40, as it is said to treat 40 different diseases.

Slide 4: 

Trunk The trunk is relatively short, straight and may reach a diameter of 1.2 m (about 4 feet). The bark is hard, fissured or scaly, and whitish-grey to reddish-brown. Leaves The alternate, pinnate leaves are 20-40 cm (8 to 16 in.) The terminal leaflet is often missing. The petioles are short. Very young leaves are reddish to purplish in colour.

Slide 5: 

Flowers: The (white and fragrant) flowers are arranged axillary, normally in more-or-less drooping panicles which are up to 25 cm (10 in.) long. The inflorescences, which branch up to the third degree, bear from 150 to 250 flowers. An individual flower is 5-6 mm long and 8-11 mm wide.  Protandrous, bisexual flowers and male flowers exist on the same individual. Flowers are used to make a currycalled ugadi pachadi.

Slide 6: 

Fruit: The fruit is a smooth (glabrous) olive-like drupe which varies in shape from elongate oval to nearly roundish, and when ripe are 1.4-2.8 x 1.0-1.5 cm. The fruit skin (exocarp) is thin and the bitter-sweet pulp (mesocarp) is yellowish-white and very fibrous. The mesocarp is 0.3-0.5 cm thick.

Slide 7: 

Ecology: The neem tree is noted for its drought resistance. Normally it thrives in areas with sub-arid to sub-humid conditions, with an annual rainfall between 400 and 1200 mm. It is a typical tropical to subtropical tree and exists at annual mean temperatures between 21-32 °C. It can tolerate high to very high temperatures and does not tolerate temperature below 4 °C .

Slide 8: 

Uses: All parts of the tree (seeds, leaves, flowers and bark) are used for preparing many different medical preparations Neem oil is used for preparing cosmetics (soap, shampoo, balms and creams, for example Margo soap), And it is useful for skin care such as acne treatment, and keeping skin elasticity. Neem oil has been found to be an effective mosquito repellent.

Slide 9: 

Medical uses: Besides its use in traditional Indian medicine the neem tree is of great importance for its anti-desertification properties and possibly as a good carbon dioxide sink. Neem gum is used as a bulking agent and for the preparation of special purpose food (for diabetics). A decoction prepared from neem roots is ingested to relieve fever in traditional Indian medicine.

Slide 10: 

Seed: Seed of neem trees; source of pesticides and fertilizer and medicinal products. Neem oil is taken from the seed

Slide 11: 

Other Species  Azadirachta juss, Azadirachta azedarac, are the other related species of Neem tree.

THANK YOU : 

THANK YOU