cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Slamet Sutriswanto
Contact Email
jurnalijas@gmail.com
Phone
-
Journal Mail Official
pustaka@litbang.deptan.go.id
Editorial Address
-
Location
Kota adm. jakarta selatan,
Dki jakarta
INDONESIA
Indonesian Journal of Agricultural Science
Published by Kementerian Pertanian
ISSN : 1411982X     EISSN : 23548509     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The journal publishes primary research articles from any source if they make a significant original contribution to the experimental or theoretical understanding of some aspect of agricultural science in Indonesia. The definition of agricultural science is kept as wide as possible to allow the broadest coverage in the journal. Accredited base on Director Decree of Indonesian Institute of Science No. 816/D/2009 with acreditation No. 172/AU1/P2MBI/08/2009. IJAS is newly accredited by the Indonesian Institute of Science in 2012 (No. 473/AU2/P2MI-LIPI/08/2012) for period of 2012-2015.
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 18, No 2 (2017): December 2017" : 7 Documents clear
RELEASE OF SILICON FROM SILICATE MATERIALS AND ITS UPTAKE BY RICE PLANT Linca Anggria; Husnain Husnain; Kuniaki Sato; Tsugiyuki Masunaga
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p69-76

Abstract

Plants absorb silicon (Si) from soil solution in the form of monosilicic acid, also called orthosilicic acid (H4SiO4). Application of organic and inorganic materials containing readily soluble Si can increase Si supply in the soil and  its uptake by plant. The study aimed to evaluate the release of Si from organic and inorganic material sources and its uptake by rice plant. The released phosphorus (P) from those materials was also evaluated. The inorganic materials evaluated included fly ash, steel slag, silica gel and Japanese silica gel (JSG), while the organic materials consisted of rice husk ash (RHA), rice husk burnt (RHB), media of mushroom (MM), cacao shell biochar (cacao SB) and rice straw compost (RSC). The dynamics of Si and P were observed by periodical samplings at 7, 17, 24 and 34 days after transplanting (DAT).  Tiller number and plant height were measured at 16, 21 and 36 DAT.  The results showed that Si concentration in solution derived from inorganic material was highest for JSG followed by silica gel (1.107 and 0.806 mmol L-1, respectively). The release of Si from organic material was higher for RHB and RHA (0.618 and 0.539 mmol L-1, respectively).  Cacao SB, silica gel, JSG and RHB significantly increased plant height at 36 DAT. Meanwhile, Si materials did not significantly affect the tiller number. Of the materials used, steel slag and JSG significantly affected Si uptake by rice plant.
Front-matter IJAS 180217 Slamet Sutriswanto
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p%p

Abstract

POLITICAL ECONOMIC ANALYSIS OF RICE SELF-SUFFICIENCY IN INDONESIA Sri Nuryanti; Dedi Budiman Hakim; Hermanto Siregar; M. Husein Sawit
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p77-86

Abstract

Rice self-sufficiency is an important programme in Indonesia. The programme has four major targets, i.e. increasing production, stabilizing prices and reserve stocks, and minimizing import. For that purpose, the government gave a mandate to a parastatal, namely National Logistic Agency (Bulog) in implementing the rice policies. Some studies found that involvement of such a parastatal could lead to government failure in budget allocation. The study aimed to estimate social cost of rice self-sufficiency programme based on the implementation of rice instrument policies by Bulog. The study used the national annual data of 2002–2014 period. The method used was the political preference function model to estimate economic rent and dead-weight loss using rice price elasticity of demand and supply. The result showed that in terms of percentage of food security budget, the average of economic rent reached IDR 6.37 trillion per annum (18.54%), while the average of dead-weight loss amounted at IDR 0.90 trillion per annum (2.34%). It proved that rice self-sufficiency programme along with the involvement of Bulog was economically inefficient. The government should provide better agricultural infrastructure, review governmental procurement prices, and stop rice import policy to remedy market failure.
DIVERSITY AND CAPABILITY ANALYSES OF FERTILITY RESTORER GENES OF CYTOPLASMIC MALE STERILE RICE LINES USING SSR Yuni Widyastuti; Muhamad Yunus; Bambang Sapta Purwoko; Satoto Satoto
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p43-50

Abstract

Development of hybrid rice depends on the effectivity of cytoplasmic male sterility (CMS) and restorer (R) lines.  The molecular genetic approach is expected to help the breeder in identification of suitable parental lines to hybrid rice improvement. The study aimed to assess genetic relationship among three types of CMS systems (wild  abbortive/WA Kalinga and Gambiaca) as female parents and to identify diversity of genes controlling fertility restoration in rice. The study used nine F1 hybrids and F2 populations obtained from the hybridization of three different CMS lines (IR58025A-WA, IR80156A-Kalinga and IR80154A-Gambiaca) with three restorer lines (PK90, PK12 and BP11). Fifteen SSR markers were used to select genomic regions of chromosome 1 and 10 on which Rf3 and Rf4 genes located in the hybrids. The results showed that fertility restoration in CMS-WA and CMS-Gambiaca was governed by two independent and dominant genes (Rf3 and Rf4), while in CMS-Kalinga the fertility restoration was controlled by one single dominant gene. Biological processes occurred in the fertility restoration of the hybrids were the same based on the pollen and spikelet fertilities of F1 hybrids derived from three CMS and R lines, i.e. 76.1–78.3% and 69.1–76.6%, respectively. A restorer line PK12 had a higher capability in fertility restoration than PK90 and BP11. The SSR primers RM490 and RM258 were capable of identifying the Rf3 and Rf4 genes controlled fertility restoration in CMS-WA. The study supports the use of male sterile WA in rice hybridization.  
Back-matter IJAS 180217 Slamet Sutriswanto
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p%p

Abstract

VARIATION IN AGGRESSIVENESS AND AFLP AMONG Alternaria solani ISOLATES FROM INDONESIA Chaerani Chaerani; M. Kosim Kardin; Suhardi Suhardi; Eri Sofiari; Ria V. van Ginkel; Remmelt Groenwolt; Roeland E. Voorrips
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p51-62

Abstract

Alternaria solani is a necrotroph fungus that causes three-phased diseases in tomato. Management of the pathogen by using resistant cultivars requires knowledge on the aggressiveness and genetic diversity of the fungus. The aims of this study were to isolate A. solani from major tomato and potato producing areas in Indonesia and to study their aggressiveness and genetic variability. Twenty two A. solani isolates were recovered from early blighted tomato and potato in Central and West Java.  A. alternata was also isolated from tomato leaves in West Java and North Sumatra, indicating that early blight in Indonesia may be caused by more than one Alternaria species. Resistance tests of four tomato genotypes to selected A. solani isolates revealed that local isolates were more aggressive in inciting early blight and stem lesion than an imported isolate from USA. This implies that introduced breeding materials must be tested to local isolates to obtain effective resistance genes. Cluster analysis based on amplified fragment length polymorphism (AFLP) obtained from EcoRI+AG and MseI+C primer amplification separated 28 local and Taiwan isolates from the US isolate, which was coincided with aggressiveness separation between the local isolates and the US isolate. Three clusters of AFLP genotypes which did not associate with geographic origin were observed among tropical isolates. The low genetic diversity among the Indonesian isolates suggests clonal population structure with wide distribution. Successful local tomato breeding requires the availability of local A. solani collection with well-characterized aggressiveness level and molecular diversity to obtain effective resistance genes.
SALINITY TOLERANCE OF SEVERAL RICE GENOTYPES AT SEEDLING STAGE Heni Safitri; Bambang Sapta Purwoko; Iswari Saraswati Dewi; Sintho Wahyuning Ardie
Indonesian Journal of Agricultural Science Vol 18, No 2 (2017): December 2017
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v18n2.2017.p63-68

Abstract

Salinity is one of the most serious problems in rice cultivation. Salinity drastically reduced plant growth and yield, especially at seedling stage. Several rice genotypes have been produced, but their tolerance to salinity has not yet been evaluated. The study aimed to evaluate salinity tolerance of rice genotypes at seedling stage. The glasshouse experiment was conducted at Cimanggu Experimental Station, Bogor, from April to May 2013. Thirteen rice genotypes and two check varieties, namely Pokkali (salt tolerant) and IR29 (salt sensitive) were tested at seedling stage. The experiment was arranged in a randomized complete block design with three replications and two factors, namely the levels of NaCl (0 and 120 mM) and 13 genotypes of rice. Rice seedlings were grown in the nutrient culture (hydroponic) supplemented with NaCl at different levels. The growth and salinity injury levels of the genotypes were recorded periodically. The results showed that salinity level of 120 mM NaCl reduced seedling growth of all rice genotypes, but the tolerant ones were survived after 14 days or until the sensitive check variety died. Based on the visual injury symptoms on the leaves, five genotypes, i.e. Dendang, Inpara 5, Inpari 29, IR77674-3B-8-2-2-14-4-AJY2, and IR81493-BBB-6-B- 2-1-2 were tolerant to 120 mM salinity level, while Inpara 4 was comparable to salt sensitive IR29. Hence, Inpara 4 could be used as a salinity sensitive genotype for future research of testing tolerant variety. Further evaluation is needed to confirm their salinity tolerance under field conditions. 

Page 1 of 1 | Total Record : 7

 1 

Filter by Year

2017 2017


Reset
Filter By Issues
All Issue Vol 22, No 2 (2021): DECEMBER 2021 Vol 22, No 1 (2021): JUNE 2021 Vol 21, No 2 (2020): DECEMBER 2020 Vol 21, No 1 (2020): June 2020 Vol 20, No 2 (2019): December 2019 Vol 20, No 1 (2019): June 2019 Vol 19, No 2 (2018): December 2018 Vol 19, No 1 (2018): June 2018 Vol 18, No 2 (2017): December 2017 Vol 18, No 1 (2017): June 2017 Vol 17, No 2 (2016): October 2016 Vol 17, No 1 (2016): April 2016 Vol 16, No 2 (2015): October 2015 Vol 16, No 1 (2015): April 2015 Vol 15, No 2 (2014): October 2014 Vol 15, No 2 (2014): October 2014 Vol 15, No 1 (2014): April 2014 Vol 15, No 1 (2014): April 2014 Vol 14, No 2 (2013): October 2013 Vol 14, No 2 (2013): October 2013 Vol 14, No 1 (2013): April 2013 Vol 14, No 1 (2013): April 2013 Vol 13, No 2 (2012): October 2012 Vol 13, No 2 (2012): October 2012 Vol 13, No 1 (2012): April 2012 Vol 13, No 1 (2012): April 2012 Vol 12, No 2 (2011): October 2011 Vol 12, No 2 (2011): October 2011 Vol 12, No 1 (2011): April 2011 Vol 12, No 1 (2011): April 2011 Vol 11, No 2 (2010): October 2010 Vol 11, No 2 (2010): October 2010 Vol 11, No 1 (2010): April 2010 Vol 11, No 1 (2010): April 2010 Vol 10, No 2 (2009): October 2009 Vol 10, No 2 (2009): October 2009 Vol 10, No 1 (2009): April 2009 Vol 10, No 1 (2009): April 2009 Vol 9, No 2 (2008): October 2008 Vol 9, No 2 (2008): October 2008 Vol 9, No 1 (2008): April 2008 Vol 9, No 1 (2008): April 2008 Vol 8, No 2 (2007): October 2007 Vol 8, No 2 (2007): October 2007 Vol 8, No 1 (2007): April 2007 Vol 8, No 1 (2007): April 2007 Vol 7, No 2 (2006): October 2006 Vol 7, No 2 (2006): October 2006 Vol 7, No 1 (2006): April 2006 Vol 7, No 1 (2006): April 2006 Vol 6, No 2 (2005): October 2005 Vol 6, No 2 (2005): October 2005 Vol 6, No 1 (2005): April 2005 Vol 6, No 1 (2005): April 2005 Vol 5, No 2 (2004): October 2004 Vol 5, No 2 (2004): October 2004 Vol 5, No 1 (2004): April 2004 Vol 5, No 1 (2004): April 2004 Vol 4, No 2 (2003): October 2003 Vol 4, No 2 (2003): October 2003 Vol 4, No 1 (2003): April 2003 Vol 4, No 1 (2003): April 2003 Vol 3, No 2 (2002): October 2002 Vol 3, No 2 (2002): October 2002 Vol 3, No 1 (2002): April 2002 Vol 3, No 1 (2002): April 2002 Vol 2, No 2 (2001): October 2001 Vol 2, No 2 (2001): October 2001 Vol 2, No 1 (2001): April 2001 Vol 2, No 1 (2001): April 2001 Vol 1, No 2 (2000): October 2000 Vol 1, No 1 (2000): April 2000 More Issue