cover
Contact Name
Lianah lianah
Contact Email
Lianah lianah
Phone
-
Journal Mail Official
info@j-tropical-crops.com
Editorial Address
-
Location
Kota bogor,
Jawa barat
INDONESIA
Journal of Tropical Crop Science
ISSN : 23560169     EISSN : 23560177     DOI : -
Core Subject : Agriculture,
Journal of Tropical Crop Science is an international journal publishing research related to tropical crops. Articles in the journal focus on in-vivo and in-vitro production and production environment, breeding, seed technology, physiology, postharvest, pest and pathology of cereals, vegetables, fruits, ornamentals, medicinal and plantation crops; soil, landscape, turf and agro ecology management under tropical conditions.
Arjuna Subject : -
Articles 5 Documents
Search results for , issue " Vol 4 No 2 (2017): Journal of Tropical Crop Science" : 5 Documents clear
Evaluation of Growth, Flowering and Seed Morphology of Batflower, Tacca chantrieri Andre Ajisyahputra, Nikko Rizky; Palupi, Endah Retno; Krisantini, Krisantini; Wiendi, Ni Made Armini; Mulyono, Joko
Journal of Tropical Crop Science Vol 4 No 2 (2017): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (970.221 KB)

Abstract

Tacca chantrieri is a perennial plant belongs to Taccaceae family that has the potential to be marketed as an ornamental plant due to its unique shape and dark color inflorescence. To date, very limited publication on T. chantrieri are available. The aim of this research was to examine plant growth pattern and flower phenology of T. chantrieri from West Borneo, Indonesia, and from Queensland, Australia in relation to their potential development as ornamental pot plants. The study was extended to examine T. chantrieri seed morphology with an inclusion of an accession from Thailand.  The field experiment was conducted at the Leuwikopo experimental station in Darmaga, Bogor, Indonesia. Seed morphology examination was conducted at the Histology Laboratory of Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University. T. chantrieri from West Borneo blooms six times a year whereas the Queensland accession twice a year. West Borneo accession had smaller bractea, fewer numbers of flowers per inflorescence and shorter flower stalk than Queensland accession. In addition, T. chantrieri Queensland grew faster than Borneo with the one leaf formed every two to three weeks, whereas it was at least four weeks in the Borneo accession. Both accessions were susceptible to leaf brown spot disease caused by Cercospora taccae. T. chantrieri Queensland seeds are oval dark brown, whereas West Borneo and Thailand accessions were shaped like kidneys (reniform) with a lighter brown color. This study demonstrated that there is great diversity in T. chantrieri including plant morphology, seed shape and color, which are important for species identification and for development of T. chantrieri as ornamental pot plant.
The Potentials of Limau (Citrus amblycarpa Hassk. Ochse) as A Functional Food and Ornamental Mini Tree Based on Metabolomic and Morphological Approaches Budiarto, Rahmat; Poerwanto, Roedhy; Santosa, Edi; Efendi, Darda
Journal of Tropical Crop Science Vol 4 No 2 (2017): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.628 KB)

Abstract

Limau (Citrus amblycarpa (Hassk.) Ochse) is one of the native Citrus species of West Java that is grown in the local backyard, thus is easily found in local cuisines. Limau has great potentials for use as a potted plant in home gardens for its aesthetic value and fragrance. The objective of this research was to describe the metabolites fingerprint and morphology of Limau as a potential functional and ornamental mini tree. Methanol leaf extracts from one-year-old Limau originated from Bogor were analyzed using untargeted Gas Chromatography Mass Spectrometry (GCMS). Methanol leaf extract was dominated by vitamin E and composed of other 18 metabolites including phytosterols, fatty acids and terpenes. The major portion of fruit extract consisted of 6-octadecenoic acid, palmitate and various fragrance compounds such as alpha sinensal, alpha limonene, beta citronellal, citronellol, and sabinene. Limau fruits are also a functional food due to its rich antioxidant and aromatic content in the fruits. The morphology of limau tree is suitable as a potted ornamentals or mini-fruits tree for its small crown, sparse branching with unifoliate aromatic leaves and small spines, and plentiful aromatics mini fruits with the diameter of around 2-4 cm.  
Improving Growth and Production of Cabbage (Brassica oleraceae L.) with Compound Fertilizer Application Kartika, Juang Gema; Sugiyanta, Sugiyanta; Herdyanti, Tri; Fadilah, Nurul
Journal of Tropical Crop Science Vol 4 No 2 (2017): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.627 KB)

Abstract

Natural soils at times do not supply sufficient amount of nutrients for the crops including cabbage, an important vegetable crop in the tropics. Therefore it is necessary to add fertilizer to supplement the soil nutrients to optimize crop growth and production. A study was conducted to examine seven different rates of inorganic fertilizers Cap Daun at 0.5, 0.75, 1, 1.25 and 1.5 of the recommended rate with the no fertilizer as the control. The results showed that inorganic fertilizer treatment generally improved the growth and yield of cabbage compared to the control. The number of leaf, yield per plant, yield per plot, and yield per ha of cabbage treated with inorganic fertilizers was significantly higher than the control treatment. The recommended rate for cabbage plants is 0.5 recommendation rate, which means applying 136 kg.ha-1 of inorganic fertilizer and urea fertilizer of 64 kg.ha-1 and SP-36 27 kg.ha-1 applied twice, 50% at 1 WAP and the rest at four WAP to get the best results. Keywords: inorganic fertilizer, recommendation rate, relative agronomic effectivity value
Adaptation of Wetland Rice to Extreme Weather Dulbari, Dulbari; Santosa, Edi; Sulistyono, Eko; Koesmaryono, Yonny
Journal of Tropical Crop Science Vol 4 No 2 (2017): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (308.615 KB)

Abstract

Climate change is believed to increase the intensity and the frequency of extreme weather events in reference to strong winds and heavy precipitations. The extreme event is defined as strong wind at speed of 50 km.h-1 and rain fall intensity 10 to 20 mm.h-1 or more .  This condition is detrimental to rice production as this may lead to lodging and flooding which normally occurs during the grain filling stage to harvesting resulting in lower yield and grain quality.  The. Simultaneous extreme events and critical rice growth occured more frequently due to increasing cropping season within a year in Indonesia. Therefore, it is important to mitigate and develop adaptation strategies in order to sustain rice production. Efforts to adapt to these extreme environmental conditions are mostly based on genetics and agro ecological approaches. Genetically, rice with strong hills, high aerodynamic with low water retention is desired. Agro-ecological manipulation is conducted through wind break application, planting arrangement to facilitate better sunshine penetration, to manage water level and planting calendar. Availability of weather station in the field is important to improve mitigation and continuous adaptation strategy against extreme weather events. Keywords: plant canopy architecture, climate change, heavy rainfall, lodging, strong wind
Growth and Development of Potted Ornamental Chilli (Capsicum annuum L.) with Different Types of Fertilizer and Growing Media Putra, Bagas Akmala; Suketi, Ketty; Syukur, Muhamad
Journal of Tropical Crop Science Vol 4 No 2 (2017): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (371.569 KB)

Abstract

Chilli has great potential to be marketed as ornamental potted plants due to their diversity in colours and shape of the fruits. The purpose of this research was to determine the optimum growing media and types of fertilizer to improve the performance of three varieties of potted ornamental chilli, ”Syakira”, “Lembayung”, and “Ayesha”. This research was conducted in Cikabayan greenhouse, Bogor Agricultural University, from December 2016 until May 2017. The experiment was arranged in a split plot design with fertilizer as the main factor (without fertilizer, P0; AB mix; P1, and NPK + Gandasil D, P2) and growing media as sub plots, i.e. charcoal husk : soil : manure (M1), perlite: soil : manure (M1), and cocopeat : soil: manure (M3) with proportion of 2:1:1 (v/v). NPK fertilizer and foliar fertilizer Gandasil D showed the maximum plant height, number of branches, number of flowers and fruits. “Ayesha” treated with AB mix fertilizer had the largest fruit diameter whereas “Syakira” and “Ayesha” had the longest fruit under the same treatment. Ornamental chilli grown on charcoal husk and cocopeat had the maximum number of branches and flowers per plant. “Syakira” grown on charcoal husk with AB mix and NPK + Gandasil D, “Lembayung” using cocopeat with AB mix fertilizer, and “Ayesha” varieties using charcoal husk with AB mix fertilizer were the most preferred by the consumers.

Page 1 of 1 | Total Record : 5