Habitat characteristics, vegetative, reproductive morphology and propagation of Limnocharis flava (L.) Buch

Mahamad Yusof, Noor Mahizah (2009) Habitat characteristics, vegetative, reproductive morphology and propagation of Limnocharis flava (L.) Buch. [Project Paper] (Submitted)

Text lpFSPM2009 76 - NOOR MAHIZAH BINTI MAHAMAD YUSOF.pdf Download (7MB)

Abstract

The study of Limnocharis flava (L.) Buch was carried to determine the habitat characteristics, morphology and propagation. Samples were collected from ditches in Kampung Padang Kelulit (N 03 ° 59' 20.34", E 113 ° 46' 39 .36 "), Bekenu and ditches at Jalan Kambar Bubin (N 03° 02' 33.48", E 113° 11' 19.62") at Bintulu. This species are distributed along slow and clear moving water, growing on mud substrate, water pH 6.70-6.88, soil pH 6.56, water temperature ranged 25. 10-25.40 °C and dissolve oxygen (DO) ranged 6.13 to 7.62 mg/L. Limnocharis flava associated with other flora and fauna such as Ludwigia hyssopifolia, Ceratopteris thalictroides, lmperata cylindrica, Lantana sp., Commefina diffusa, lpomoea aquatica, Mimosa pudica and some animal like snail. The leaves blade is light to dark green, oval shape, apicute at apex, cordate at base, 11.87±0.40 cm long and 10.14±0.36 cm wide, vein is parallel which is smooth on the surface and rough below The stomata are present for both adaxial and abaxial surfaces. The petiole is spongy, triangular in shape and have numerous lacunae. Petiole possesses white latex in its tissue. Flowers are yellowish with white colour at the tip. Petals are wavy at the apex, very sensitive and have parallel veination at on its surface. Fruits are compound with many follicles, 5 to 10 fruits per inflorescence stalk, green colour during young and turned brown when mature. There are 14 to 17 follicles in each fruit containing numerous seeds ranging between 25 to 83 seeds. The seeds are blackish in colour when mature and 'U' shaped. Reproductive propagation by seeds are more effective with the first leaf emerge in five days compared to vegetative propagation using rhizome takes seven days. Propagation using rhizome took 80 days to produce the first inflorescence. It takes only one week to produce another inflorescence and 110 days to complete the life cycle until fruiting. Stage of propagation by seeds took 125 days to complete the cycle comprising nine stages from seed germinating: (1) swollen seed, (2) emergence of epicotyls, (3) elongation of epicotyls, (4) splitting of seed coat, (5) detaching seed coat, (6) emergence of hypocotyl with plumule rise, (7) formation of first leaf, (8) formation of fibrous root and (9) formation of petiole and leaf blade.

Item Type:	Project Paper
Subjects:	S Agriculture > SB Plant culture
Faculty:	Faculty of Agriculture and Food Sciences
Depositing User:	Mr. Azman Mohamad
Date Deposited:	08 Dec 2025 08:07
Last Modified:	08 Dec 2025 08:07
URI:	http://psaspb.upm.edu.my/id/eprint/2566

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