Skip to main content

Porang (Amorphophallus muelleri)

Porang or iles-iles (Amorphophallus muelleri) is a plant species in Araceae, the leaves are pseudo stems with a height of 40-180 cm and a diameter of 1-5 cm, tubular, green with irregular white patches, each branching point grows bulbil colored brown and yellow tubers.

A. muelleri has pseudo stems and leaves that are bright green to dark green and have greenish white patches. The surface of the stalk is smooth, while the leaves are smooth wavy. Ellipse-shaped leaves with pointed tips.

Dlium Porang (Amorphophallus muelleri)

When flushing has 3, 4-5, 5-6 and finally 6 minor leaf strands with 3 small leaf stems. Young leaves have edges that are light purple, green and will end yellow with a width of 0.3-0.5 mm. Canopy has a width of 50-150 cm.

Stems grow on tubers with a diameter of 25-50 mm and height 75-175 cm. The color of the tuber is brownish or beige on the outer surface and brownish on the inside, rather oval and stringy roots, weight 450-3350 grams, fine tissue, 4-5 months dormant period and 35-55% glucomannan content.

Bulbil grows on each leaf bone branching, the outer color is brown and yellow inside, the surface is rough, symmetrical or oval shaped, weighs 1-23 grams, 1-5 cm diameter, fine tissue structure, 4-5 months dormant period and glucomannan content 25-30%.

Flowers are fleshy, inflorens and unisexual with male flowers in the middle of the cob. Green, greenish yellow color and will ripen with orange-red. Oval shape, tapering to the base, 40-80 mm diameter and 10-22 cm high.



The fruit is formed apomically, arranged in a stalk, greenish pink when young and red when old. An average of 300 eggs per cob, mature for 8-9 months from flowering and dormant seeds for 1-2 months.

Porang has a vegetative organ consisting of leaves, stems, tubers and roots. Pseudo stems grow for 6 months, then fall and the tubers that have formed enter dormancy. In the next rainy season the tubers grow into new plants. Large tuber will grow flower.

Iles-iles produces a bulbil in the first period, 4-7 bulbils in the second period and 10-20 bulbils in the third period. Bulbil size varies depending on location on branching and plant age.

The life cycle starts from seeding to fruiting and ripening plants at 38-43 months. Plants will flower if the tuber weighs more than 500 grams and twice the vegetative growth period. Tubers grow maximally after completing the four vegetative periods or before entering the generative period.

The shoots use nutrient reserves in seed tubers for stem and leaf growth. Seedlings will rot to be replaced by new tubers after 60 days and will be enlarged using photosynthesis.

A. muelleri is a tropical plant and grows well in shady places such as under bamboo clumps and dense forests, altitude 100-600 m, temperature 25-35C, rainfall 300-500 mm/month during periods of vegetative growth, loose soil and pH 6-7.5. Wild plants often grow on river slopes and hill slopes.

Tubers contain carbohydrates as glucomannan which is composed of manosa and glucose. Glucomannan polymers have cellulose and galactomannan characteristics that form crystals and fine fibers. Glucomannan will expand 138-200% rapidly in water.

Tuber flour is used as food for diabetic patients, reduces cholesterol and blood sugar levels, improves digestive function, improves the immune system and reduces body weight.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Alismatales
Family: Araceae
Subfamily: Aroideae
Tribe: Thomsonieae
Genus: Amorphophallus
Species: Amorphophallus muelleri

Comments

Popular

Javanese grasshopper (Valanga nigricornis)

Wooden grasshoppers or wooden walang or Javanese grasshopper ( Valanga nigricornis ) are grasshopper species in Acrididae and have around 18 subspecies, most of which are endemic to various island groups in Indonesia. This insect has a very broad sexual dimorphism where males have a length of 45-55 millimeters and females 15-75 mm. V. nigricornis is yellowish brown or yellowish or green with bluish black marks. The back wing is rose red when flying. The nymphs are pale green and dark. They live in forests, bushes and really like the leaves of the giant sensitive plant ( Mimosa diplotricha ) and giant sensitive tree ( Mimosa pigra ). Javanese grasshopper has one generation every year where four eggs are placed on moist soil in forest clearing. The eggs are not active throughout the dry season and it takes six to eight months to hatch. The eggs hatch into nymphs and pass seven instar stages before becoming winged adults. Wood grasshoppers are solitary insects and do not form fl

China rose (Rosa chinensis)

Mawar or Bengal rose or China rose ( Rosa chinensis ) is a plant species in Rosaceae, shrubs up to 1-2 m tall, growing on fences or forming bushes. Leaf pinnate, 3-5 leaflets, each 2.5-6 cm long and 1-3 cm wide. The plant has three varieties is R. chinensis var. chinensis, R. chinensis var. spontanea and R. chinensis var. semperflorens. R. chinensis has pink, red and white petals. Solitary flowers, usually four or five bundles together and have a mild aroma. Hermaphrodite flowers have radial symmetry for diameters of 4-5 cm. Strong branches, sturdy thorns decorate each path, young stems have dark green tree bark and woody old stems have purplish brown color. The leaves are arranged alternately from the petiole and downy. Leaf pinnate, ovoid with rounded base, tapered tip and sharp saw edge. The top leaves are dark green and shiny. Various forms of mawar have been cultivated in the garden for a long time, many varieties of garden roses and hibidation as tea roses and so on hy

Cacao tree (Theobroma cacao)

Kakao or cacao tree ( Theobroma cacao ) is a perennial plant species in Malvaceae in the tropics, in the form of a tree 10 m high but in cultivation it will be limited to only 5 m to expand the canopy and multiply branches so that more fruit grows where the seeds are processed as chocolate. T. cacao has flowers like other Sterculiaceae members that grow directly from the stem, perfect and single flowers, 3 cm in diameter, but appear in panicles because often a bunch of flowers emerges from a single bud. The flowers are white and are ready to be pollinated within a few days especially by the Forcipomyia fly, winged ants, aphids and some Trigona bees which usually occur at night. The main pests of this plant are Bactrocera carambolae and Bactrocera papayae . Cacao trees generally cross-pollinate and have their own incompatibilities, but some varieties are capable of self-pollinating and produce higher-selling commodity types. The fruit grows from pollinated flowers, has a frui