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Journal : Journal of Tropical Crop Science

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The Effects of Different Rates of Chicken Manure and Harvest Intervals on the Bioactive Compounds of Bitter Leaf (Vernonia amygdalina Del.) Betty, Betty; Aziz, Sandra Arifin; Suketi, Ketty
Journal of Tropical Crop Science Vol. 8 No. 02 (2021): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.8.02.80-88

Abstract

Bitter leaf (Vernonia amygdalina Del.) is a valuable functional vegetable and traditional medicinal plant in many tropical countries including Indonesia. Bitter leaf is commonly used to remedy hypertension and diabetes among Indonesian people. The leaf extract comprises bioactive compounds such as sesquiterpene lactones, steroid glycosides, and flavonoids. Despite its growing market demand, there is insufficient data on agronomic practice in order to obtain optimum yield with high bioactive compounds. The experimental design used was a randomized complete block design with two factors namely chicken manure rates (0, 2.5, 5, and 7.5 kg per plant) and harvest intervals (2 and 3 months). There was a significant difference in fresh and dry weights of leaves, chlorophyll a and b, carotenoids, nitrogen concentration, anthocyanins, and flavonoids among different manure treatment. The highest concentration and production of bioactive compounds on the bitter leaf was found on the highest treatment of 7.5 kg chicken manure per plant. The harvest interval of three months significantly increased fresh and dry weights of leaves, concentration of anthocyanins, phosphorus, and potassium, uptake of phosphorus and potassium, and production of anthocyanins and flavonoids. Cultivation using chicken manure with frequent period of pruning can enhance the production of biomass as well as secondary metabolites in bitter leaf.
Co-Authors Abda Abda Abdul Hakim Abdul Kahar Abdullah, M. Ikbal Adelse Prima Mulya Adelse Prima Mulya, Adelse Adfiyani Fadjar Alamanda, Intan Nefia Alannuwari, Alannuwari Alferraly, T. Ibnu Alifia, Eva Putri Angkasa, Dennis Astuti, Vina Catur Ayamah, Ayamah Bitaria Febrawati, Eka Chrestela, Jessy Chrestella, Jessy Delyuzar, Delyuzar Erwinsyah Erwinsyah Farradila, Dwi Femilia Zahra Femilia, Femilia Fiandani, Fatma FIDROTIN AZIZAH Fikry Karim Fikry, Fikry Fitri Desimilani, Fitri Desimilani Furqan, Andi Chairil Ginting, Rehulina Gugun Mangesa Gunarsa, Arif Halim, Andrian Harnida Wahyuni Adda Haryono Pasang Kamase Hasibuan, Arie Widiansyah Intan, T. Kemala Ira Ira, Ira Ketty Suketi Kharismawaty, Dina Kristiyowati, Anis Dwi Laksmi, Lidya Imelda Latifah Sukmawati Yuniar Listiyaningsih, Listiyaningsih Lubis, H. M. Nadjib Dahlan Lucyani, Meldawati Lukito, Joko S. M. Iqbal A Maharani, Adinda Mariedina, Causa Trisna Marlon, Marlon Marpaung, Fenny Krisna Masruddin Megawati, Nani Meldawati, Lucyani Michelle, Michelle Miluana, Miluana Muhammad Din Munawarah Munawarah, Munawarah Mustamin Mustamin Nadhira Afdalia, Nadhira Nasrun Naida Ni Bodro Ardi Nina Yusnita Yamin Nur Fadillah, Nur Nur Hasanah Poddar, Sandeep Puji, Lela Kania Rahsa Putra, Yosua Angkasa Putri Handayani Putri, Arla Amalia Putri Putri, Marissa Yolanda Rafika Dora Wijaya Rahma Masdar Rahmadani, Indah Suci Rahmawati, Rahmawati, Rezeki, Dewi Sri Ridwan, Ridwan Rinawati Kasrin Rinawati Kasrin Rinawati Kasrin Rinawati Kasrin, Rinawati Kasrin Rita Dwi Pratiwi Rizki Handayani Fasimi Rizki, Diana Rosita Rosita Rudy Usman Rusli, Riswandi S Lukito, Joko S. Lukito, Joko Saleh, Fadli Moh. SALMAN FARIS Sandra Arifin Aziz Sansuwito, Tukimin bin Sayyidah, Sayyidah Shafira, Anggriana Sihotang, Marisi Cintya Debby Siregar, Denny Rifsal Siti Aisyah Siti Novy Romlah Soekimin Soekimin, Soekimin Sri Wahyuni Sultan, Resky Oktaviani Suriati Tirawani Suryadi Hadi Tirawani, Suriati TITA HARDIANTI Unayah, Maelia Uswatun Hasanah Utami Utami Vandi Saputra Very, Very Vike Dwi Hapsari Vira, Natalin Wardini, Indah Astri Zindy Kaludia