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Enlargement of Tubers from Flower Blooming to Seeds Ripening in Konjac Plant (Amorphophallus muelleri Blume)

AGRIVITA, Journal of Agricultural Science · Vol. 47 No. 1 (2025) · hlm. 132–143

DOI
10.17503/agrivita.v47i1.4588
ISSN
2477-8516, 0126-0537
Terbit
2025-02-06
Penerbit
Faculty of Agriculture University of Brawijaya in collaboration with PERAGI
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc/4.0

Abstrak

The cultivation of konjac plants (Amorphophallus muelleri Blume) is mainly initiated by the accumulation of glucomannan in their tuber. Many studies of konjac plants are limited until konjac tubers are suitable for harvest, not extended to the flowering stage. This study focused on tubers' development in the flower bud formation phase until seed development. The results of this study show that only one flower grows from each tuber. It takes 40+2 days for the konjac flower to bloom fully but 3+1 days for the flower to wither. The weight, diameter, and thickness of the konjac tubers used as planting material were 0.342+0.014 kg, 8.23+0.26 cm, and 5.75+0.17 cm, respectively, and significantly grew to 2.70+0.156 kg, 19.96+0.560 cm, and 12.73+0.335 cm, respectively at the time of harvest. Konjac plants promote thick lateral roots at the base of the petiole and fibrous roots on the tuber skin. During the enlargement of the tubers, the thickness and diameter ratio did not change. The cross-sectional shape of petioles and spadix is slightly oval. The number of seeds per plant correlated with the female flower's length, diameter, and cylindrical area. Finally, tubers decompose, and a new one or more starts to grow.

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  • Sriwijaya University
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Andi WijayaAfiliasi tidak diketahui5
Mei MeihanaAfiliasi tidak diketahui3
Erna SiagaAfiliasi tidak diketahui3
Laily Ilman WiduriAfiliasi tidak diketahui2
Dedik BudiantaAfiliasi tidak diketahui2
Susilawati SusilawatiAfiliasi tidak diketahui2
Hana Haruna PutriAfiliasi tidak diketahui2
Zaidan Panji NegaraAfiliasi tidak diketahui2
Erizal SodikinSriwijaya University1
Mery HasmedaAfiliasi tidak diketahui1
Kartika KartikaAfiliasi tidak diketahui1
Haris KriswantoroAfiliasi tidak diketahui1
Aldes LesbaniAfiliasi tidak diketahui1
Fitra GustiarAfiliasi tidak diketahui1
Zaidan P. NegaraAfiliasi tidak diketahui1
Astuti KurnianingsihSriwijaya University1
Nanda SanjayaAfiliasi tidak diketahui1
Sabaruddin KadirAfiliasi tidak diketahui1
Kartika KartikaAfiliasi tidak diketahui1
Dodo GunawanAfiliasi tidak diketahui1
Wandayantolis WandayantolisAfiliasi tidak diketahui1
Mohd AsmadiAfiliasi tidak diketahui1
Amnani ShamjuddinAfiliasi tidak diketahui1
Nur Zahidah Abd MajidAfiliasi tidak diketahui1
Umi Aisah AsliAfiliasi tidak diketahui1
Sharifah Nurain HussainAfiliasi tidak diketahui1
Riyani Tri YuliantiAfiliasi tidak diketahui1
Nur Hidayah ZainanAfiliasi tidak diketahui1
Asiah Nusaibah MasriAfiliasi tidak diketahui1
Gwendoline ChristopheAfiliasi tidak diketahui1
Philippe MichaudAfiliasi tidak diketahui1
PurwantoSTKIP Pasundan1
Marieska VerawatyAfiliasi tidak diketahui1
Lilian RizkieAfiliasi tidak diketahui1

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Sumber metadata: OAI-PMH (metadata jurnal) https://agrivita.ub.ac.id/index.php/agrivita/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Enlargement of Tubers from Flower Blooming to Seeds Ripening in Konjac Plant (Amorphophallus muelleri Blume)</dc:title>
	<dc:creator>Lakitan, Benyamin</dc:creator>
	<dc:creator>Nurshanti, Dora Fatma</dc:creator>
	<dc:creator>Muda, Strayker Ali</dc:creator>
	<dc:creator>Yakup, Yakup</dc:creator>
	<dc:creator>Jaafar, Nardiah Rizwana</dc:creator>
	<dc:creator>Illyas, Rosli Md.</dc:creator>
	<dc:subject xml:lang="en-US">horticultural sciences; crop production; ethnical crop</dc:subject>
	<dc:subject xml:lang="en-US">Flowers without leaves; Lateral root; Petiole photosynthesis; Planting material; Tuber growth</dc:subject>
	<dc:description xml:lang="en-US">The cultivation of konjac plants (Amorphophallus muelleri Blume) is mainly initiated by the accumulation of glucomannan in their tuber. Many studies of konjac plants are limited until konjac tubers are suitable for harvest, not extended to the flowering stage. This study focused on tubers' development in the flower bud formation phase until seed development. The results of this study show that only one flower grows from each tuber. It takes 40+2 days for the konjac flower to bloom fully but 3+1 days for the flower to wither. The weight, diameter, and thickness of the konjac tubers used as planting material were 0.342+0.014 kg, 8.23+0.26 cm, and 5.75+0.17 cm, respectively, and significantly grew to 2.70+0.156 kg, 19.96+0.560 cm, and 12.73+0.335 cm, respectively at the time of harvest. Konjac plants promote thick lateral roots at the base of the petiole and fibrous roots on the tuber skin. During the enlargement of the tubers, the thickness and diameter ratio did not change. The cross-sectional shape of petioles and spadix is slightly oval. The number of seeds per plant correlated with the female flower's length, diameter, and cylindrical area. Finally, tubers decompose, and a new one or more starts to grow.</dc:description>
	<dc:publisher xml:lang="en-US">Faculty of Agriculture University of Brawijaya in collaboration with PERAGI</dc:publisher>
	<dc:contributor xml:lang="en-US">Universitas Sriwijaya</dc:contributor>
	<dc:date>2025-02-06</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://agrivita.ub.ac.id/index.php/agrivita/article/view/4588</dc:identifier>
	<dc:identifier>10.17503/agrivita.v47i1.4588</dc:identifier>
	<dc:source xml:lang="en-US">AGRIVITA Journal of Agricultural Science; Vol 47, No 1 (2025); 132-143</dc:source>
	<dc:source>2477-8516</dc:source>
	<dc:source>0126-0537</dc:source>
	<dc:source>10.17503/agrivita.v47i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://agrivita.ub.ac.id/index.php/agrivita/article/view/4588/1821</dc:relation>
	<dc:relation>https://agrivita.ub.ac.id/index.php/agrivita/article/downloadSuppFile/4588/3338</dc:relation>
	<dc:relation>https://agrivita.ub.ac.id/index.php/agrivita/article/downloadSuppFile/4588/3339</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2025 The Author(s)</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>