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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 57 Documents
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The Effect of Cutting Length and Coconut Water Concentration on the Success of Lemon Cuttings (Citrus Lemon L.) Elviana, Elviana; Handayani, Rd. Selvy; Safrizal, Safrizal; Hafifah, Hafifah; Hendrival, Hendrival
Journal of Tropical Horticulture Vol 4, No 2 (2021): October 2021
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v4i2.68

Abstract

Lemon (Citrus lemon L.) is one of the horticultural commodities used by Indonesian people in the form of juice or combined with cooking spices. The materials used for lemon cutting plants were topsoil, manure, coconut water, water, labeling paper, transparent plastic, and polybag size 12 x 17 cm. The tools used in this research were: hoe, machete, scissors, bucket, bamboo, paranet, raffia rope, meter, camera, watering can, measuring cup, scale, oven, and stationery. This research used Randomized Block Design (RBD) with a factorial pattern. The first factor was the length of the cuttings, and the second factor was the concentration of coconut water (0% (control), 25%, 50%, and 75%). It was repeated three times so that there were 36 experimental units.
Germination of Pomegrate Seeds (Punica granatum L.) on Concentration Treatment and Soaking Time in Sulfuric Acid (H2SO4) Lubis, Hafni Wahyuni; Faisal, Faisal; Nazimah, Nazimah; Ismadi, Ismadi; Handayani, Rd Selvy
Journal of Tropical Horticulture Vol 5, No 1 (2022): April 2022
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v5i1.74

Abstract

One of the medicinal plants that contain high antioxidants and have an important role in nutritional needs is pomegranate. Pomegranate plant propagation can be done generative and vegetatively.  Sexual propagation is constrained because pomegranate plants have dormancy properties and hard seed coats that cause seed germination to take a long time. Effectiveness of sulfuric acid is used to break dormancy in hard seed coats so that the inhibition process goes well, and the germination process is faster.  This research aims to determine the effect of concentration and duration of immersion in sulfuric acid solution on the germination of pomegranate seeds. This research used a two-factor randomized block design. The first factor was sulfuric acid concentration (control, 65%, 70%, 75%).  The second factor is the immersion time (without immersion, 5 minutes. 10 minutes. 15 minutes).  Each treatment was repeated 3 times. 
Effect of Scarification Position and Sulfuric Acid (H2so4) Concentration on Soursop Seed Viability (Annona muricata L.) Siregar, Eka Pratika Duri; Nazimah, Nazimah; Safrizal, Safrizal; Nilahayati, Nilahayati; Khaidir, Khaidir
Journal of Tropical Horticulture Vol 4, No 1 (2021): April 2021
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v4i1.69

Abstract

Soursop is an annual plant that is rich in nutrients. The problem in soursop cultivation is that soursop has a hard seed coat, which causes the seeds to be impermeable to gases and air, inhibiting germination. Soursop seed dormancy can be broken by scarification and sulfuric acid immersion. This research aims to determine the effect of scarification position and sulfuric acid concentration on the viability of soursop seeds. The research used a completely randomized factorial pattern (CRD), which consisted of two factors with three replications. The first factor was the scarification position consisting of S0 (without scarification), S1 (base scarification), S2 (tip scarification) and S3 (middle scarification). The second factor was the sulfuric acid concentration consisting of K0 (control), K1 (10%), K2 (20%), and K3 (30%). The results showed an interaction between the treatment of scarification position and the concentration of sulfuric acid (c) on germination capacity and growth speed parameters. The combination of S0K1 (without scarification and 10% sulfuric acid) increased soursop seeds' germination and growth speed.
The Effect of Different Hydroponic Nutrient Sources on Bok Choy Plant Growth (Brassica rapa L.) Sabar, Muhammad; Muliana, Muliana; Khusrizal, Khusrizal; Yusra, Yusra; Baidhawi, Baidhawi
Journal of Tropical Horticulture Vol 5, No 1 (2022): April 2022
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v5i1.75

Abstract

Hydroponic cultivation of bok choy is an alternative that can be done to increase plant production during the increase of limited land conditions. The use of nutrients is one of the determinants of the success of hydroponic cultivation. Cow urine, shallot extract, coconut water, AB Mix nutrients, and NPK fertilizer are sources of nutrients that can be used as they are easy to obtain and have a good effect on the growth of bok choy. The research started from September 2020 - September 2021 and used a non-factorial Completely Randomized Design (CRD) with 3 replications so that 15 experimental units were obtained. The treatments were: N0 (aquades = 100% (1 liter), N1 (Cow Urine = 3% (30 ml/liter), N2 (Shallot Extract = 4% (40 g/liter), N3 (Coconut Water = 30 % (300 ml/liter), N4 (Nutrition AB Mix = 1% (10 ml/liter), N5 (15: 15 : 15 NPK Fertilizer = 0.12% (1.2 g/liter).
The Effect of Planting Media Type and Ab Mix Concentration on the Growth and Yield of Hydroponic Bok Choy (Brassica rapa L.) Lelawati, Nur; Hafifah, Hafifah; Ismadi, Ismadi; Yusuf, Muhammad; Wirda, Zurrahmi
Journal of Tropical Horticulture Vol 4, No 1 (2021): April 2021
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v4i1.70

Abstract

Vegetables are usually classified by the part of the plant used for food, which is an essential source of many nutrients, including vitamins A and C, potassium, calcium, dietary fiber, and folate. Leafy greens are an abundant source of vitamin A and iron. The lack of fertile agricultural land has led to a decrease in the area of agricultural land, resulting in a decrease in the well-being of farmers. However, plant cultivation using the hydroponic method can be applied to solve this problem. Hydroponics is a method of growing crops without soil. Hydroponic farming is clean, simple, and efficient. This research aims to determine the effect of planting media type and AB mix concentration on hydroponic bok choy. The research used a Completely Randomized Design (CRD) with two factors and three replications, resulting in 27 experimental units. The first factor was planting media (M): Rockwool (M1), husk charcoal (M2), and sand (M3). The second factor was AB mix concentrations: 3 ml/l (K1), five ml/l (K2), and seven ml/l (K3).
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.

Page 6 of 6 | Total Record : 57

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