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Journal of Tropical Horticulture

jthort
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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

Arjuna Subject : -

Articles 43 Documents

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Development of Tomato (Lycopersicum esculentum Mill.) Roots in Every Growth Stage In Flooding Conditions Rabiatul Jannah; Julianthy Diana Natalia; Odit Ferry Kurniadinata
Journal of Tropical Horticulture Vol 2, No 1 (2019): April 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Flooding is a natural phenomenon that often occurs in the rainy season arrives with high rainfall. This phenomenon give an effect to plant growth if it occurs in agricultural areas. This research was carried out at Samarinda, Indonesia. This study uses a completely randomized design non factorial, consists of 4 lavels ie; 4 hours height level 50% flooding (J1), 8 hours height level 50% flooding (J2), 4 hours height level 100% flooding (J3), 8 hours height level 100% flooding (J4), carried out with 4 repetitions. Flooding simulation is carried out 5 times in each growth phases of tomato plants. The data analysis used Anova. If the variance is significantly different, then followed by the LSD (Least Significance Different) at 5%. The results showed that simulation of flooding with times 8 hours height level 50% flooding had a morederate negative effect on tomato plants. The flooding simulation with times 8 hours height level 100% flooding gives the highest negative effect on tomato plants and the root, due to excess water requirements so that plants cannot meet needs of the plants.

Effect of manure and NPK fertilizers on growth and production of onion (Allium cepa L.) Maisura Maisura; Mulyadi Nurdin; Muslina Muslina
Journal of Tropical Horticulture Vol 2, No 1 (2019): April 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Fertilization is one of efforts done by farmers to increase the production and quality of onions. This research aimed to find out the effect of manure and NPK fertilizers to the growth and production of onions. This research was conducted in Paloh Lada Village, Dewantara Sub-district, North Aceh and Agroecotechnology Laboratory, Faculty of Agriculture, Malikussaleh University from May to July 2018. This research used Randomized Block Design (RBD) Factorial. The first factor was manure (P): 15 tons/ha (P1), 20 tons/ha (P2), 25 tons/ha (P3). The second factor was NPK fertilizers (N): 150 kg/ha (N1), 200 kg/ha (N2) and 250 kg/ha (N3). The results indicated that there was high significant interaction between manure and NPK fertilizers on wet weight and dry weight of onion bulbs and also bulb yield. The application of manure significantly enhanced the wet weight and dry weight of onion bulbs and its production and it also significantly increased the plant height at 14 days after planting. The application of NPK increased the wet weight and production of onion bulbs significantly. Also, the combination application of manure 15 tons/ha and NPK fertilizers 150 kg/ha did improve the wet weight, dry weight and production of onion bulbs.

Six Potential Superior Durian Plants Resulted by Cross Breeding of D. zibethinus and D. Kutejensis From East Kalimantan, Indonesia: Initial Identification Odit Ferry Kurniadinata; Song Wenpei; Achmad Zaini; Rusdiansyah Rusdiansyah
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Kalimantan Island is rich in genetic resources and species diversity of Durio spp. Of the 27 durian species in the world, 18 species are found in Borneo. The large number of Durio species that grow in Kalimantan illustrates that this area is the most important distribution center for durian relatives. Two of the best-known edible durians in East Kalimantan are Durian (Duriozibethinus) and Lai (Durio kutejensis). However, as a plant with a cross-pollination mechanism, there are many results of natural crosses between the two. The study aimed to identify Durian x Lai plants in Loa Kulu, Kutai Kertanegara, East Kalimantan Province, Indonesia as the superior local fruit crops potentially agribusiness industry. This research was carried out by collecting data and information about the morphological characteristics of the plants and fruits from D. Zibenthinus x D. Kutejensis. The results of the study successfully identified 6 potentially superior plants that are believed to be the result of a cross between D. Zibenthinus x D. kutenjensis. The 6 potential superior plants were found to have different morphological characters. This is the initial identification and being a basis of the next research phase, which is to identify the morphology of trees, flowers, and fruit to obtain new cultivars crossing D.zibenthinus and D. Kutejensis which have superior potential as superior commodities from East Kalimantan.

Farmers’ And Retailers’ Knowledge Level Associated with Pesticide Distribution and Application in Horticultural Production Centers in Karo Regency, North Sumatera Catur Hermanto; Rasiska Tarigan; Agustina E. Marpaung; Rina C. Hutabarat
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

The description of the agriculture success is inseparable from the level of knowledge of retailers and farmers on the effective use of pesticides in the field. This study aimed at evaluating the relationship between the level of knowledge of retailers and farmers on the distribution and use of pesticides in vegetable production centers in Karo Regency. The research was Berastagi Experimental Farm from August to September 2016. The research method used in the survey was a cross-sectional study approach. The selection of districts was done purposively based on the highest number of retailers, the largest horticultural planting area, and the number of vegetable farmers per district. The number of research samples was 10 respondents per district. To analyze the relationship between variables, we used Spearman's range correction coefficient calculation and validity test using SPSS correlation 17. The results exhibited that the level of knowledge of retailers and farmers in Karo regency is low about the functions, codes, and formulations of all pesticides that have been distributed. The level of knowledge of vegetable farmers on the use of pesticides in Karo district is low, seen from the high level of use, increasing concentration of pesticides and high frequency of spraying, as well as mixing fungicides and insecticides 2 types of pesticides with different codes and active ingredients. The relationship of farmers' knowledge with their age, education and the length of farming experience significantly influenced the perception and attitude of using pesticides to control pest attacks in their lands of cultivation.

Genetic and Heritability Estimation of Water Apple (Syzygium aqueum (Burm.f.) Alston) Fitriana Nasution; Sri Hadiati
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Nine different accessions of water apples were evaluated at Indonesian Tropical Fruit Research Institute(ITFRI), Solok, West Sumatera from January 2013 to December 2014. This present study was aimed to evaluate the variability, heritability, genetic advance and its characters in nine different accessions to provide useful information in the improvement program of water apples. The research used Randomized Complete Block Design (RCBD) with two replications. The ANOVA results exposed significant differences at 5% probability level for all characters. Genotypic variance on fruit weight, fruit length, fruit diameter, leaf length were broad. However, the genotypic variance on total soluble solids, leaf width were narrow. The phenotypic variation for all characters was broad. The heritability estimation was categorized as low, moderate, and high. High heritability estimation was recorded for fruit weight, fruit length, fruit diameter, and leaf diameter. Moderate heritability estimation was noticed for total soluble solids. Leaf width had low heritability estimation. High heritability and high genetic advance were observed on fruit weight.

Adaptability of Growth and Yield on 5 varieties of Shallot (Allium ascalonicum L) in Wet Highland Agustina E Marpaung; Rini Rosliani
Journal of Tropical Horticulture Vol 2, No 1 (2019): April 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

In general, shallot was planted in low land to highland, but it usually planted in area has rain fall and humidity not high, because can effect to the yielding, so that needed the adaptive varieties in the condition. The aim of the research was to determine the growth and yield of some varieties of shallot adaptive in wet highlands. The research conducted in Berastagi experimental farm, Dolat Rayat district, Karo regency, with type of the soil is andisol and altitude of 1,340 m asl. The research was beginning from September - December 2015. The design was used randomize block non factorial with 5 replication. The treatment was shallot varieties (Bima, Maja, Trisula, Agrihorti 1 and Agrihorti 2). The shallot seeds were from Java. The result showed that the Agrihorti 1 and Bima varieties had a more adaptive vegetative growth in wet highland than 3 other varieties. Agrihorti 1 and Bima varieties produced the highest bulb production respectivaly i.e.12,76 kg / 5 m2 and 12,61 kg / 5 m2. Agrihorti 1 varieties have the largest bulb diameter 2,99 cm. Shallot Agrihorti 1 varieties adaptive in the wet highland.

Characteristics of Innovations in the Cultivation Process of Intensive Red Chili Eva Wardah; Setia Budi
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

The characteristics of innovation and the process of implementing intensive red chili cultivation need to get training from parties involved in intensive red chili cultivation activities. The purpose of this study is to determine farmers' assessment of the innovation characteristics of intensive red chili cultivation. The research sample consisted of 32 red chili farmers in Meurah Dua District, Pidie Jaya Regency, Indonesia. This research was conducted through a qualitative descriptive approach with data measurement using a Likert scale. Based on farmers' responses to the innovation characteristics of intensive red chili cultivation, the results sequentially showed that the cultivation (1) having a relative profit level, (2) easy to try, (3) suitability level, (4) observable, and (5) level of innovation complexity. The process of red chili cultivation activities include; (1) seed procurement and seeding, (2) land management, (3) planting, (4) plant maintenance, (5) pest and disease control, and (6) harvesting. The role of agricultural extension is needed to continue to provide training and assistance to address problems faced by intensive red chili farmers especiallyin the selection of superior seeds and good seeding process, balanced fertilization, integrated pest and disease control.

In-vitro Callus Induction of Durian (Durio zibethinus Murr.) Leaves Using Kinetin and 2,4-D (Dichlorophenoxyacetic acid) Rd. Selvy Handayani; Ismadi Yunus; M. Sayuti; Endri Irawan
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Durian (Durio zibethinus Murr.) is a tropical fruit grown in Southeast Asia and it has high nutritional and economic values and highly appreciated by consumers in Indonesia. Unfortunately, there are several obstacles in planting durian in Indonesia, specifically in Aceh. One of the abstacles is the scarcity of superior durian plants. Generally, plant conservations done conventionally through vegetative propagation. However, this technique has disadvantage such as harming the initial plants. Therefore, plant culture tissue has been used as a modern technique to develop durian plants. The objective of this research was to evaluate the effect of kinetin and 2,4 D on development of durian leaf explants through in-vitro bioassay. The research was conducted at Tissue Culture Laboratory, Faculty of Agriculture, Malikussaleh University from January to April 2019 using Completely Randomized Design (CRD) Factorial with 2 factors observed. The first factor was Kinetin (K): 0.0, 0.1 and 0.5 ppm. The second factor was auxin 2,4 D: 0.0, 0.5 and 1.0 ppm. The results showed that the in-vitro application of kinetin affected the induction of leaf callus. The application of 0.5 ppm of kinetin gave the best result compared to others. The in-vitro application of 2,4 D 0.5 ppm also possessed the best result compared to others. There was no interaction beween in-vitro application of kinetin and 2,4 D on the growth of durian leaf callus at all parameters observed.

Utilization of Anthocyanin Extracted from Pletekan (Ruellia tuberosa L.) in Determination Soil pH Olivia Damayanti Putri; Dharmi Wimi Pertiwi; Bakti Wisnu Widjajani
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Pletekan (Ruelliatuberosa L.) is a flowering plant that grows wild. Pletekan has blue-purple flowers, containing the anthocyanin as its specific color. Anthocyanin is an organic material that can be used as an indicator of natural acid alkali, because the color of anthocyanin can ensure specific color changes when it reacts with materials at a certain pH as well. This research aimed to utilize anthocyanin extracted from pletekan as a determinant of soil pH. The used method was maceration extraction by soaking fresh pletekan flowers using maceration solvent (methanol acidified by HCl 1%) for 2-3 days. Concentrated anthocyanin extracts needed to be diluted with extracts that had not been concentrated so that the resulted color changes were more specific. The anthocyanin mixture was applied to pH 1-12 buffer solution and in acid and alkaline soil samples. The soil was dissolved using aquadest at a ratio of 1: 2, the soil was left to settle to get water. The color change in the tested water of soil sample was adjusted to the color of the buffer solution and pH meter. Results showed that color change of soil sediment-water which was dropped by natural pH indicators needed more indicator drops such as 2-3 levels than was color changes caused by the buffer solution.

Morphological and Stomatal Characteristics of Two Indonesian Local Orchids Meutia Zahara; Cho Cho Win
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Orchids are very famous for their beautiful and long-lasting flowers and variety among the most diverse family of flowering plants in the world, comprising thousand species and hybrids and very attractive. The research aimed to determine the morphological features of two local orchids Phalaenopsis amabilis L. and Dendrobium x Superbiens and the stomatal characteristics of both orchids. Plants were the only living organisms that are able to convert light energy/sunlight into chemical energy, and stomata is an important part of plants for CO2 to enter the leaf and H2O to be released during the photosynthetic reactions. The results showed that Phalenopsis amabilis L. was monopodial orchid and Dendrobium x Superbiensis a sympodial orchid. A qualitative descriptive research method used to describe and interpreted the type of stomata of Phalaenopsis amabilis L and Dendrobium sp. stomatal density were counted on adaxial and abaxial part of the leaf, and the highest stomatal density was obtained on the abaxial part of Dendrobium x Superbiensleaf 290.81 mm-2. The type of stomata was anomocytic for two local orchids.

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Dr. Ismadi, SP.,M.Si

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Dr. Ismadi, SP.,M.Si

Contact Email ismadi@unimal.ac.id

Phone -

Journal Mail Official editor@jthort.org

Editorial Address -

Location Kota banda aceh, Aceh INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Dr. Ismadi, SP.,M.Si

Contact Email
ismadi@unimal.ac.id

Phone
-

Journal Mail Official
editor@jthort.org

Editorial Address
-

Location
Kota banda aceh,

Aceh

INDONESIA