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Journal of Tropical Horticulture
Published by Indonesian Society for Horticulture (Perhorti) Aceh Commissariat
ISSN : 26228432     EISSN : -     DOI : -
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry
Journal of Tropical Horticulture (JTHort) ISSN 2622-8432 (online) is a peer-reviewed open-access international journal contains primary articles of research and review in horticulture such as fruits, vegetable, and ornamental plants also tropical biopharmaca plants. This journal is under the management of Indonesian Society for Horticulture (Perhorti) Aceh Commissariat. Journal of Tropical Horticulture was first published in October 2018. This journal publishes its articles twice, April and October annually and receives articles from various countries within the scope of tropical plants
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Articles 2 Documents
 1 
Search results for , issue "Vol 5, No 2 (2022): October 2022" : 2 Documents clear
The Effect of Palm Oil Mill Effluent and Cow Manure on the Growth and Yield of Bok Choy Plant (Brassica Rapa L.) Pratama, Boby Erdi; Hafifah, Hafifah; Nazaruddin, M; Nasruddin, Nasruddin; Faisal, Faisal
Journal of Tropical Horticulture Vol 5, No 2 (2022): October 2022
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v5i2.80

Abstract

In Indonesia, bok choy (Brassica rapa L.) is a popular vegetable whose leaves are used as food ingredients in fresh or processed ways. The treatments to increase the production of bok choy are the application of Palm Oil Mill Effluent (POME) and cow manure fertilizer. POME contains macro and micronutrients such as C, N, P, K, Ca, and Mg that can optimize plant height, number of leaves, and plant production. This research aims to measure the effect of POME and cow manure fertilizer as well as the interaction of these fertilizers on the growth, production, and quality of bok choy. The research was arranged in a randomized block design with two factors. The first factor was Palm Oil Mill Effluent (POME) (L) consisted of L0 (0 ml), L1 (150 ml/polybag), L2 (250 ml/polybag). The second factor was cow manure fertilizer (K) consisting of K0 (0 ml) K1 (100 g/polybag) K2 (200 g/polybag). The results showed that the application of POME affects plant height at 28 DAP, the number of leaves at 28 DAP, and leaf chlorophyll content in bok choy plants. The best treatment is L1 (150 ml/polybag of POME) which increases the growth and yield of bok choy plants. Applying cow manure affects the plant height at 28 DAP, number of leaves at 28 DAP, plant fresh weight, root fresh weight, crown fresh weight, dry weight, and harvest index of bok choy plants. The best treatment was found in K1 (100 grams/polybag of cow manure) which increased the growth and yield of bok choy plants. There is an interaction between the treatment of POME and cow manure on the plant height at 21 DAP, number of leaves at 28 DAP, plant fresh weight, root fresh weight, crown fresh weight, plant dry weight, and harvest index. The best treatment is found in the interaction of L1K1 (100 ml/polybag of POME + 100 g/polybag of cow manure) which increased the growth and yield of bok choy plants.
Growth Response of Cymbidium Orchid (Cymbidium Finlaysonianum) Subcultures Due to the Addition Naa and Kinetin Ainaya, Ainaya; Handayani, Rd. Selvy; Nazirah, Laila; Nilahayati, Nilahayati; Faisal, Faisal
Journal of Tropical Horticulture Vol 5, No 2 (2022): October 2022
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v5i2.79

Abstract

The Cymbidium orchid plant is a popular ornamental plant among Indonesians due to its beautiful blooms with unique shapes and colors. The generative propagation of orchid plants cannot be done conventionally.  This is due to the unavailability of food storage (endosperm)in the orchid plant. The purpose of this research was to determine the effect of NAA and kinetin on the growth of Cymbidium finlaysonianum orchid subcultures in vitro. The research method used was a factorial Completely Randomized Design (CRD) that consists of two factors which are the concentration of Naphthalene Acetic Acid (NAA) (0 mg/L, 0,5 mg/L, 1 mg/L) and kinetin (0 mg/L, 1 mg/L, 2 mg/L). The results showed that NAA can reduce the growth of Cymbidium orchid subcultures on the number of buds 7-8 WAP and root growth time. The best treatment is found in the treatment of 0 mg/L of NAA. 2. Kinetin can increase the growth of Cymbidium orchid subcultures up to a concentration of 1 mg/L at the percentage of root growth 5 WAP and the number of roots 5-7 WAP. The best treatment is found in the 1 mg/L of Kinetin. 3. The interaction between the concentration of NAA and Kinetin only affects the number of shoots 3-4 WAP and the number of roots at the age of 6-8 WAP. The best treatment was 0 mg/L of NAA + 1 mg/L of Kinetin.

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