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AGRIVITA, Journal of Agricultural Science
Published by Universitas Brawijaya
ISSN : 01260537     EISSN : 24778516     DOI : https://doi.org/10.17503
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
AGRIVITA Journal of Agricultural Science is a peer-reviewed, scientific journal published by Faculty of Agriculture Universitas Brawijaya Indonesia in collaboration with Indonesian Agronomy Association (PERAGI). The aims of the journal are to publish and disseminate high quality, original research papers and article review in plant science i.e. agronomy, horticulture, plant breeding, soil sciences, plant protection and other pertinent field related to plant production. AGRIVITA is published three times per year. The Journal has been indexed in SCOPUS, Scimago Journal Ranks (SJR), Emerging Source Citation Index ( ESCI-Web of Science), EBSCO, ProQuest, Google Scholar and others international indexing. AGRIVITA is accredited first grade (Sinta 1/S1) for five years (2018-2023) based on Decree No: 30/E/KPT/2018 by Ministry of Research, Technology and Higher Education (Ristek Dikti), The Republic of Indonesia. We accept submission from all over the world. All submitted articles shall never been published elsewhere, original and not under consideration for other publication.
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Articles 28 Documents
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Search results for , issue "Vol 34, No 1 (2012)" : 28 Documents clear
PHYSICOCHEMICAL, MINERALS AND ANTIOXIDANT PROPERTIES OF Labisia pumila var. alata OF SELECTED GEOGRAPHIC ORIGIN Iwansyah, Ade Chandra; Yusoff, Mashitah Mohd
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.77

Abstract

In this study, relationship between physicochemical, mineral and antioxidant properties of water-soluble extracts of Labisia pumila var. alata is proposed. A wide range of analytical parameters were studied including physicochemical viz., proximate composition, yield, pH, total solid, total acidity, solubility; minerals content (Ca, Fe, and Zn) and heavy metals (Cd, Hg, As, and Pb); total phenolic content (TPC), tannins content, gallic acid (GA) content, and free scavenging activity of DPPH (EC50). Data were analyzed by ANOVA and principal component analysis (PCA). Based on the PCA analysis, TPC, GA content, moisture content, crude protein, and zinc content havesignificantly positively correlated (r close to 1) to antioxidant activity. Cluster analysis (CA) resulted in four groups of LP.These results provide useful data about the studied relationships and chemical patterns in LP leaves.
DROUGHT RESISTANT SELECTION ON SOYBEAN SOMACLONAL VARIANTS Widoretno, Wahyu; Arumingtyas, Estri Laras; Basuki, Nur; Soegianto, Andy
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.136

Abstract

This research was conducted to evaluate the yield potential of 19 somaclonal variants resulting from in vitro selection when planted under drought stress condition in the field. Field test was done by planting the variants, the parents, and checked varieties in the field during dry season, and was irrigated once a week for non-stress and once two weeks for drought stress treatment. Split-plot design arranged in a factorial (2 x 28) with three replications was used in this research. Observations were done on yield and yield components. Analysis of variance was used to see the difference between treatments and then it was continued with analysis using Honestly Significant Difference test to find out the best treatments. There was no interaction between genotype and drought stress on seed yield. Different genotypes showed a significant difference on this character. It indicated that the yield potential of selected variants was not affected by drought stress treatment. This research gave 10 variants having the potential to be developed as drought resistant genotypes. However, these ten potential genotypes need to be tested further in field trial to find out the yield adaptability and stability and their resistance to drought stress.   Keywords: somaclonal variants, in vitro selection, drought stress, soybean, selection
ANALYSIS OF COMBINING ABILITY, HETEROSIS EFFECT AND HERITABILITY ESTIMATE OF YIELD-RELATED CHARACTERS IN SHALLOT (Alium cepa var. ascalonicum Baker) Farid, Noor; Sugiharto, Arifin Noor; Herison, Catur; Purwito, Agus; Sutjahjo, Surjono Hadi
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.142

Abstract

Low productivity of shallot in Indonesia can be improved through development of high yielding variety. The availability of genetic information related to the character being improved is inevitable for effective breeding program. In this study, seven shallot genotypes were evaluated for their combining ability for yield improvement using half diallel cross.  Heterosis effect and heritability estimate was also investigated for yield-related characters.  The results showed that there were significant differences in general combining ability (GCA) and specific combining ability (SCA) among the evaluated genotypes. Tiron and Timor had the greatest GCA.  The greatest SCA and heterosis value was found in crosses of Kuning/Tiron, Timor/Bima Juna, Tiron/Timor and Kuning/Sibolangit. Heterosis effect varied from low to high. Broad sense heritability estimate for all characters was high, but narrow sense heritability was low for most charaters.  The dominant gene action observed on all yield-related characters suggests that the evaluated genotypes are potential to be used in breeding for high yielding hybrid varieties.   Keywords: GCA, SCA, heterosis, heritability, shallot
THE POTENCY OF BOTANICAL PESTICIDES TO CONTROL ACARINE Tetranychus kanzawai KISHIDA (ACARI: TETRANYCHIDAE) Affandi Affandi; Handoko Handoko
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.162

Abstract

The research is aimed to confirm the potency of several botanical pesticides to be used as natural biological control and to know the most infective stadium of T. kanzawai was done at Pest and Disease Laboratory of Indonesian Tropical Fruits Research Institute from May to August 2009.  A factorial completely randomized design was used in this research.  Two factors were observed; first, four kinds of botanical pesticides consist of four treatment levels i.e. extracts of neem, soursop, Siam weed leaves and sterilized water as control.The second was the stadia of T. kanzawai that consist of three levels i.e. larva, nymph and adult.  The result showed that Siam weed and soursop leaves extracts caused anti-feedent behavior and decreased mobility at five days after treatment.  In addition, exoskeleton of treated T. kanzawai darkened from white, yellowish and bright brown.  Extracts of Sourshop and Siam weed leaves caused very high mortality (96.67%) of T. kanzawae compared to neem (79.17%).  However, there was no significant difference in mortality rates among the four active stadia of T. kanzawai with average mortality range from 65.63% to 79.38%. Keywords: botanical pesticide, T. kanzawai, control
STUDY ON APPLICATION OF GEOGRAPHICAL INFORMATION SYSTEM (GIS) FOR ESTABLISHMENT OF BIOMASS CLASSIFICATION TO SUPPORT IMPLEMENTATION OF CLEAN DEVELOPMENT MECHANISM Gun Mardiatmoko; Th.M. Silaya; Jan W. Hatulesila
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.132

Abstract

A research to study biomass classification by using GIS has been conducted at forest area in Ambon, Province of Maluku. The aims of this research were to find out composition of forest vegetation with its distribution, to determine biomass potency distribution of vegetation and to make classification of biomass potency, air temperature and light intensity distribution. This research used survey method. The vegetation biomass was measured by using allometric and weighted scoring method. By using GIS, definite score can be formatted. The result showed that composition of forest vegetation could be determined, and its biomass potency could be measured and presented on digital map. The digital map of biomass potency, air temperatures and light intensity distribution can be arranged successfully with 3 classifications: low 0.15 ha (17%), moderate 0.31 ha (37%) and high 0.39 ha (46%).   Keywords: biomass classification, LULUCF, CDM, GIS, allometric equation
SMALL FARM RESERVOIR AS A SUPPLEMENTAL IRRIGATION SOURCE FOR CROPS PLANTED ON MARGINAL LAND Bariot Hafif; Andarias Makka Murni
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.139

Abstract

Rainwater harvesting is a water conservation measures. Water is harvested in addition to reducing runoff, and erosion control can be used as a supplemental source of irrigation for crops on marginal land. A study was conducted to test the effectiveness of a small pool of rainwater harvesting usually termed as a small farm reservoir (SFRs) as a complementary source of irrigation water in improving the productivity of farming on marginal land. The experiment was conducted from December 2005 to August 2007 in Buanasakti, East Lampung, Indonesia. Three SFRs with a volume of 7 x 3 x 2.5 m (50 m3 were made ​​on upland at sloping area (8-15%) of ​​1.5 ha. Further rain was deposited to be used by farmers for crop watering, especially in the early dry season. Extensive planting of crops that can be irrigated with SFRs, based on consideration of the farmers themselves. Observation result indicated that the SFRs were used by the farmers to water the vegetables and tobacco plants with different extents. However, on average, the presence of SFRs increased the planting area of vegetables such as beans and cucumbers in the dry season to 650%. Increased intensity of cultivation of vegetables and tobacco cultivation also increase farmers' income of 1.5 ha of marginal land as much as 37.49%. Keywords: small farm reservoir, supplemental irrigation, vegetables, marginal land
EXPRESSION OF RESISTANCE OF SOYBEAN TO THE POD SUCKING BUG RIPTORTUS LINEARIS F. (HEMIPTERA: COREIDAE) Suharsono Suharsono; Liliek Sulistyowati
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.137

Abstract

Factors involved in the mechanism of resistance of soybean to pod sucking bug R. linearis  were identified using resistant soybean genotypes, IAC-100, and IAC-80-596-2 and the susceptible variety, Wilis as a check. The role of trichomes in resistance was assayed removing trihomes from the pod shell, and seed coat  and  the resistance was determined based on the number of stylet punctures made by the bug. Seed of IAC-100 and IAC-596-2 that had longer, denser trichomes, higher crude fiber content and  suffered fewer stylet punctures than  Wilis. This suggested that denser and longer trichomes interfered with stylet piercing of the pod shell. When the trichomes of IAC-100 and IAC-596-2 were removed these genotypes were more susceptible to insect feeding. In further studies, replacement of IAC-100 and IAC-596-2 seed with seed of Wilis in the pods of resistant genotypes resulted less stylet punctures on the Wilis seed. It was concluded that denser and longer trichomes on pods along with harder pod shells acts as a physical barrier in antixenosis resistance of soybean to the pod sucking bug. Therefore, IAC-100, and IAC-596-2 genotypes have good potential for used as resistant parents in a soybean breeding program.     Keywords: resistance, pod characters, tri-chomes, antixenosis, pod stink bug
SPATIAL AND TEMPORAL DISTRIBUTION OF NATURAL ENEMIES VISITING REFUGIA IN A PADDY FIELD AREA IN MALANG Wiwin Maisyaroh; Bagyo Yanuwiadi; Amin Setyo Leksono; Zulfaidah PG
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.143

Abstract

Human activities in seeking agricultural lands, has change the traditional agricultural system into intensive cultivation system. One effort to minimize intensive agriculture system is the use of natural enemies to control pests. Habitat management should be implemented by creating habitat favored by natural enemies. This research aims to determine the spatial and temporal distribution of natural enemies of wild plants: Mimosa pudica, Vernonia cinera, Marsilea crenata, and Pistia startiotes on agricultural land. This research was conducted in March-April 2010 in Malang Sawojajar farmland. Plants placed in the corner field (refugia areas), visiting insects was observed starting from refugia areas and two meters away from the refugia area. Observations of insect use the "visual control" metode. The results showed that natural enemies visiting to the refugia areas were 6 orders (15 families): Coleoptera, Odonata, Aaraneae, Hymenoptera, Diptera, and Orthoptera. Not all natural enemies have spatial and temporal distribution, only 9 families who indicate a pattern spatial or and temporal distribution. Overall, natural enemies do not show any significant spatial pattern (F> 0.05), but indicate a temporal pattern (F

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