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Journal : Makara Journal of Science

The Effect of Thidiazuron Treatment on the Growth of Vanda limbata Blume in vivo Ditasya Putri, Novika; Setiari, Nintya; Nurchayati, Yulita; Agung Suedy, Sri Widodo
Makara Journal of Science Vol. 28, No. 4
Publisher : UI Scholars Hub

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Abstract

Vanda limbata is one of the most popular ornamental orchids. Currently, its growth is slow, making it necessary to improve its cultivation techniques. One of the possible ways to achieve this is to use plant growth regulator (PGR) treatment. Thidiazuron (TDZ) is a cytokinin used to increase the growth of V. limbata. This study aimed to determine the effect of TDZ concentration on the growth rate of V. limbata. The study involved cultivating V. limbata on planting media and spraying it with TDZ at various concentrations. This research uses a CRD (Completely Randomized Design) single-factor, which is TDZ concentration at three concentrations (factor levels) of 0, 25, and 50 ppm. Data were analyzed using analysis of variance and Duncan’s Multiple Range Test at 5% significance level. The study ran for three months and the following response variables were measure: the number of new leaves, increase in length of old leaves, length of new leaves, increase in width of old leaves, width of new leaves, number of roots, and stomatal density. The results showed that TDZ significantly increased leaf length and the number of new leaves of V. limbata, but decreased the density of stomata. Thidiazuron at 50 ppm was the best treatment for increasing the growth of V. limbata.
Co-Authors Abdul Khafid Abdul Khafid, Abdul Agustin Noviati Aini, Nabilah Anggi Krisdianto Ari Indrianto Ari Indrianto Diah Nurmaningrum Ditasya Putri, Novika Einstivina Nuryandani Endah Dwi Hastuti Endang Saptiningsih Endang Saptiningsih Erma Prihastanti Erma Prihastanti Fakhri Fadhlurrohman Pratama Fathiyah Afiah R Fathiyah Afiah R, Fathiyah Fella Suffah Meinaswati Fella Suffah Meinaswati Fetryani Soni Manurung Fitrian Agna Mahayaning, Fitrian Agna Fiva Andriyani Hana, Puji Nur Hartati, Puji I’anatushshoimah, I’anatushshoimah Ika Susanti Hendriyani Imam Purwanto Indriani, Reni Istiqomah, Azura Muzdalifah Jefri Saputro Karend, Azzah Hanun Abas L. Hartanto Nugroho Laurentius H Nugroho Luaeliyah, Masrukhatul Madha Kurniawan Misrofah, Sofatu Misrofah, Sofatun Mochammad Syaifuddin Muhammad Syaiful Anam Munifatul Izzati NIDA, KHOIRIN Nintya Setiari Nintya Setiari Nita Kumalasari Dewi Noveira, Ameviana Fitri Nur Cahyani, Evi Prameswari, Ratna Apriliani Puji Nur Hana Putra, Agita Christyaji Putri Anugrah Maulidya Rashid, Fatimah Azzahra Ahmad Reni Indriani Rina Budi Astuti Rini Budi Hastuti Rini Budihastuti Rini Budihastuti Rizqi Fadlia Julianti Sadiah, Fitriatus Santosa Santosa Santosa Santosa Santosa, Faradita Azzahra Setiana, Devi Vira Sri Darmanti Sri Haryanti Sri Haryanti Sri Widodo Agung Suedy Sulistyowati Sulistyowati Surya Kurnia Hayati Titis Yuliana Ulva, Maria Utama, Rafii Satria Utami, Ika Nur Wahyu Hadayani Wiraputra, Muhammad Dwijunianto Zahrotunnisa, Alfi Zakiyah, Aisyah