Botanical Description of Arecanut
Agriculture

Botanical Description of Arecanut



Description of the plant

Betel nut is a slender, single-trunked, monoecious palm with a prominent crown shaft.

Size
The palm reaches a mature height of 10?20 m (33?66 ft) (exceptionally up to 30 m [100 ft]), with a trunk 25?40 cm (10?16 in) in diameter. Typhoons and tropical storms usually prevent the trees from reaching their maximum height. The canopy is typically 2.5?3 m (8?10 ft) in diameter and consists of 8?12 fronds.

Flowers

Flowers are unisexual, with both male (=staminate) and female (=pistillate) flowers borne in the same inflorescence.
Inflorescences are crowded, much-branched panicles borne below the leaves. Each terminal branch has a few female flowers borne at the base and numerous male flowers extending from there out to the branch tip. Flowers of both sexes have six tepals, are stalkless (=sessile), creamy-white, fragrant; male flowers are minute, deciduous, have six stamens, arrowhead-shaped anthers, rudimentary ovary; female flowers are larger (1.2?2 cm [0.5?0.8 in] long), with six small sterile stamens and a three-celled ovary bearing a triangular stigma with three points at the apex. The male flowers open for a few hours, shedding pollen most in the morning; bees and other insects collect this. The average male flowering period is 2-4 weeks; after this the stigmas in female flowers become receptive for 3-4 days. The sweet-scented male flowers are visited by bees and other insects for nectar, but insects have not been observed visiting the female flowers. It is thought that most of the flowers are wind pollinated

Leaves
Fronds are even-pinnately compound, 1?1.5 m (3.3?5 ft) long; pinnae (leaflets) 30?50, lanceolate, 30?70 x 3?7 cm (12?28 x 1.2?2.8 in), longest near middle of frond; frond base sheathing, encircling trunk and forming a green crown  shaft, ca. 55 x 15 cm (22 x 6 in).

Fruit
A fibrous, ovoid drupe, 5?10 x 3?5 cm (2?4 x 1.2?2 in), yellow to orange or red when ripe; pericarp fibrous, ca. 6 mm thick. Seed usually 1, ovoid, globose, or ellipsoidal, 3?4 x 2?4 cm (1.2?1.6 x 0.8?1.6 in), base sometimes flattened; endosperm ruminate (with hard reddish tissue from inner integument extending horizontally into pale brown endosperm); embryo conical, located at seed base.





- Flower Structure
FlowersFlowers are the modified shoots bearing modified leaves that serve as the sexual reproductive organs of angiosperms. This strategy for reproduction has been so successful that angiosperms now dominate the plant world, and accordingly there are...

- Plant Parts And Functions
Most  plants  have  five  main  parts:  leaves,  stems,  roots, flowers, and fruit.  http://www.agrinfobank.com Leaves. http://www.agrinfobank.comLeaves make sugars by a process called photosynthesis (photo...

- Mango Tree - Nature & Features
Mango trees are deep rooted, symmetrical evergreens that attain heights of 90 m and a width of 80 feet. The switch just mango leaves lanceolate, 12 to 16 centimeters long and are yellow-green, purple or copper color when young. Mature leaves are leathery,...

- Jack Tree - Features
Jack about a large tree growing to 40-45 feet tall is evergreen. Often seen growing in the backyards of homes.especially Kerala South Indian, Jack, a variety of specific features - sorts.First the uncrowned herbarium shows, her cards are not all alike...

- Papaya Tree - Details In Brief
Papaya tree - Introduction Papaya tree is one of the plants on earth the most specific. This typically 4 to 5 meters long and unbranched, but older plants can be 10 meters tall.The trunk looks a bit like a top, bottom, brown carrots. The plant 75 cm,...



Agriculture








.