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Nunung Harijati
University of Brawijaya
Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

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Effect of Bulbils Position on Leaf Branches to Plant Growth Responses and Corms Quality of Amorphophallus muelleri Blume Retno Mastuti; Nunung Harijati; Estri Laras Arumingtyas; Wahyu Widoretno
The Journal of Experimental Life Science Vol. 8 No. 1 (2018)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1140.975 KB) | DOI: 10.21776/ub.jels.2018.008.01.01

Abstract

Bulbil (corm leaf) is one material source of vegetative propagation in Amorphophallus muelleri Blume. Based on the position in branches there are two types of bulbil, middle and edge bulbils, which are different in shape and size. It has been reported that bulbil size affected not only the growth response of seedlings and plants but also the quality of the produced corms. Therefore, the objectives of this experiment were to study the effect of bulbils origin on A. muelleri Blume (Porang) growth and the quality of harvested corms. The quality of corms was assessed based on glucomannan and (CaOx) content. Bulbils from the middle and edge of branches were grown in polybag (f 5 cm) containing compost:fertilizer (1:1) mixed media under 40% shade. Each bulbil origin was repeated 8 times. The results showed that growth responses of plant from middle bulbil were significantly better than that from edge bulbil. However, at the harvesting time, the weight and diameter of corms derived from both types of bulbils were not significantly different. The glucomannan and calcium oxalate (CaOx) content of harvested corms grown from middle bulbil tends to be higher than that from edge bulbil.Keywords: branching, calcium oxalate (CaOx), germination, glucomannan, Porang.
Anatomical Characters of Shoot Apical Meristem (SAM) on Bulbil Porang (Amorphophallus muelleri Blume) At the End of Dormancy Period Muhammad Naufal Afifi; Nunung Harijati; Retno Mastuti
The Journal of Experimental Life Science Vol. 9 No. 1 (2019)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1095.941 KB) | DOI: 10.21776/ub.jels.2019.009.01.04

Abstract

Porang is one species member of the genus Amorphophallus. In Indonesia, Porang is cultivated extensively because it has a high economic value. There is three seeded material available for planting. One of seeded material is bulbil. Bulbil is a vegetative reproductive organ of Porang plants which is located in the branch of the leaf. Bulbil has 3 - 4 months dormancy period. The dormancy period will end with shoot growth. Morphologically, there can be found a rough structure in the form of bulges in bulbil. The bulge is spread throughout the bulbil surface and is a growing area of shoots. Shoots on bulbil will grow through the bulge and only grow on the adaxial part, contrary shoots do not grow from the abaxial part. This study aims to compare the anatomy of shoot apical meristem (SAM) in the adaxial and abaxial parts of bulbil at the end of the dormancy period, ie 100 days after harvest (DAH), 110 DAH, 120 DAH, and 130 DAH. Anatomical observations were carried out by making semi-permanent preparations. The results showed that the anatomy of the adaxial and abaxial parts of bulbil Porang had differences in the development of SAM, leaf primordia, primary thickening meristem (PTM) and procambium.Keywords: Anatomy, Bulbil Porang, Dormancy, Shoot Apical Meristem.
Co-Authors Estri Laras Arumingtyas Muhammad Naufal Afifi Retno Mastuti Wahyu Widoretno