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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.
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Articles 6 Documents
 1 
Search results for , issue "Vol 21, No 1 (2020): June 2020" : 6 Documents clear
IDENTIFICATION OF IRON TOLERANT CANDIDATE LOCI IN RICE DETERMINED THROUGH GENOME-WIDE ASSOCIATION STUDY Dwinita Wikan Utami, M.Si.; Ida Rosdianti; Lili Chrisnawati; Subardi Subardi; Siti Nurani; Suwarno Suwarno
Indonesian Journal of Agricultural Science Vol 21, No 1 (2020): June 2020
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v21n1.2020.p17-29

Abstract

Iron (Fe) toxicity is a significant abiotic stress in swamp land. The study aimed to identify the candidate loci related to Fe toxicity tolerance through Genome-Wide Association Study (GWAS) approach.  The study used 288 rice accessions consisting of 192 breeding lines and 50 local landraces, and custom-designed 384 rice SNPs-chips. A field evaluation was conducted in inland swamp for two season periods (2014 and 2015). Phenotypic data and association mapping were analyzed using XLSTAT and TASSEL 3.0. The candidate loci were analyzed by functional gene detection of the significant SNPs aligned to the Rice Annotation Project and the Institute for Genomic Research databases. Three linkage disequilibrium (LD) blocks were detected in the Fe tolerant population around the significant SNPs. The first LD block was mapped in chromosome 1 (the AtIRT gene and qFETOX1; qFETOX1-3 QTLs loci) resembled partitioning of Fe-toxicity tolerant mechanism. The second LD blocks located in chromosome 2 (qFE-TOX-2-1 and qFETOX-2 QTLs loci) and chromosome 3 (qFETOX-3 QTL, OsNAS1 and OsNAS2 loci), probably contributed to Fe exclusion mechanism. The third LD blocks located in chromosome 4 (OsFRO2 and qFETOX-4 QTL loci) and chromosome 7 (OsIRT2 and NAS3 loci). The third LD block found on tolerant genotypes both on vegetative and generative stages. This condition indicated that these loci were presumed playing a role for Fe toxicity tolerance in rice. Result of the study are beneficial for determining the strategy on developing Fe-toxicity tolerant rice for specific swamp land type through breeding programs.
EFFECTS OF CRUDE SUGARCANE FACTORY EFFLUENT ON THE MORPHOLOGICAL AND BIOCHEMICAL PARAMETERS OF CHICKPEAS Mohd. Suhail; K.P. Singh; Imran Ali
Indonesian Journal of Agricultural Science Vol 21, No 1 (2020): June 2020
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v21n1.2020.p30-38

Abstract

Waste released from sugar factories has a huge amount of inorganic and organic matter whose effect on plant is different when used in different concentrations. Hence, the effects of sugar factory effluent on the morphological and biochemical parameters of chickpeas (Cicer arietinum Linn.) were studied by using the different concentrations of effluent for irrigation of chickpeas plant. The experiment was conducted at Botanical Garden, Department of Biochemistry, Bhaila (PG) College, Bhaila (Saharanpur), Uttar Pradesh. In the experiment, pots were arranged in a completely randomized design, replicated by six times and were labeled for the various treatments viz. 0%, 10%, 25%, 50%, 75% and 100% v/v. After that, chickpea plants were grown up to 10 days, in the soil irrigated with different concentrations of sugar factory effluent. It was observed that sugar factory effluent promoted the growth of chickpea seeds at 10–25% concentration, but its lethal impacts were noted when concentrations were above 50–100%. Hence, it was found that at lower concentrations (upto 25%), sugar factory effluent behaves as compost for better growth of chickpeas, but at high concentrations, it shows toxicity and behaves as a pollutant. Moreover, it makes the speed of biochemical reactions slow in chickpeas. Therefore, sugar factory effluent can be used for irrigation of chickpeas after proper dilution.
VARIABILITY AND HERITABILITY ESTIMATE OF 30 RICE LANDRACES OF LAMJUNG AND TANAHUN DISTRICTS, NEPAL Anup Dhakal; Shishir Sharma; Amrit Pokhrel; Ankur Poudel
Indonesian Journal of Agricultural Science Vol 21, No 1 (2020): June 2020
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v21n1.2020.p1-10

Abstract

The variability in the rice landraces is the source of variation and offers substantial opportunity for the development of new varieties through the selection. Exploring diversity and variability of landraces is utmost for rice improvement. The objective of the study was to assess diversity indices, magnitude of genetic variability, heritability, genetic advance for the yield, and yield contributing traits. An experiment was carried out in alpha-lattice with 30 landraces, two replications in the Agronomy farm of IAAS, Lamjung Campus, during June-November, 2018. Shannon and Simpson's indices were calculated for 18 qualitative traits. The value of the Shannon and Simpson index ranged 0.15-1.41 and 0.07- 0.75, respectively. Landraces showed significant variations (p
IMPROVE YIELD AND DOWNY MILDEW RESISTANCE OF F1 MADURA MAIZE HYBRIDS Achmad Amzeri; Kaswan Badami
Indonesian Journal of Agricultural Science Vol 21, No 1 (2020): June 2020
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v21n1.2020.p11-16

Abstract

Maize production in Madura Island is low. The study aimed to evaluate the agronomic performances (flowering age, harvesting age, and yield), heterosis effect, and resistance to downy mildew disease of F1 Madura maize hybrids. Ten F1 maize hybrids and seven respective parents were evaluated at the experimental center of the Agro-Technology Study Program of Agriculture Faculty, the University of Trunojoyo Madura, from July to December 2017. The experiments were arranged in a randomized block design, three replications, with a 50–100 plant population per unit. The parents were T12, T16, G10, G14, E02, Td04 and L1 genotypes having resistance to downy mildew (Peronosclerospora maydis). The results showed that the flowering age of the F1 Madura maize hybrids ranged 35–39 days, the harvesting age was 74–81 days, and the yield ranged from 2.90–6.40 t ha-1. Three hybrids showed the highest yield (T12 x L1 = 6.40 t ha-1, T16 x L1 = 5.42 t ha-1, and E02 x L1 = 5.90 t ha-1), and resistance to downy mildew, i.e. T12 x L1 (26.67%), T16 x L1 (26.67%), and E02 x L1 (26.67%). Two hybrids showed the highest heterosis values for yield, i.e. T12 x L1 (65.80%) and E02 x L1 (54.65%). The study suggests that three F1 Madura maize hybrids (T12 x L1, T16 x L1 and E02 x L1) are prospective to be developed further for high yield and resistance to downy mildew.
NUTRIENT CONTENT OF SOYBEAN MEAL FROM DIFFERENT ORIGINS BASED ON NEAR INFRARED REFLECTANCE SPECTROSCOPY Budi Tangendjaja
Indonesian Journal of Agricultural Science Vol 21, No 1 (2020): June 2020
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v21n1.2020.p39-47

Abstract

Near infrared reflectance spectroscopy (NIRS) has become common techniques to estimate chemical composition of feed ingredient for poultry. Two experiments were performed: first was to compare the capability of NIRS system from three laboratories (E, A and T) to measure nutrient composition of soybean meal (SBM); and the second was to evaluate nutrient composition and quality of 59 samples of SBM from Argentine, Brazil and US using NIRS from T-laboratory. Thirty samples of SBM was used in the first study and the result showed that all NIRS systems were able to estimate proximate, amino acids, metabolizable energy (ME) and carbohydrate components. The second experiment indicated that there were some differences in proximate composition (especially protein), total amino acids and digestible amino acids among SBM from different origins. Brazilian SBM had 2% higher protein and amino acid compared to US or Argentine SBM (P<0.05). However, US SBM had slightly higher ME (20 and 40 kcal kg-1) compared to Brazilian and Argentine SBM, respectively. ME is positively correlated with protein (0.50) and fat content (0.58) but negatively correlated with fiber (-0.74) and NSP (-0.61). Stepwise regression analysis demonstrated that ME can be estimated using equation ME (kcal kg-1) = 75.7 – 21.0 x Fiber + 87.4 x Fat + 32.9 x Protein + 17.6 x NFE with reasonable accuracy (R2 = 0.995). In conclusion NIRS can be used to estimate nutrient content of SBM. Brazilian SBM has higher protein and amino acids, but US SBM has slightly higher ME content.
NUTRIENT CONTENT OF SOYBEAN MEAL FROM DIFFERENT ORIGINS BASED ON NEAR INFRARED REFLECTANCE SPECTROSCOPY Tangendjaja, Budi
Indonesian Journal of Agricultural Science Vol 21, No 1 (2020): June 2020
Publisher : Indonesian Agency for Agricultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/ijas.v21n1.2020.p39-47

Abstract

Near infrared reflectance spectroscopy (NIRS) has become common techniques to estimate chemical composition of feed ingredient for poultry. Two experiments were performed: first was to compare the capability of NIRS system from three laboratories (E, A and T) to measure nutrient composition of soybean meal (SBM); and the second was to evaluate nutrient composition and quality of 59 samples of SBM from Argentine, Brazil and US using NIRS from T-laboratory. Thirty samples of SBM was used in the first study and the result showed that all NIRS systems were able to estimate proximate, amino acids, metabolizable energy (ME) and carbohydrate components. The second experiment indicated that there were some differences in proximate composition (especially protein), total amino acids and digestible amino acids among SBM from different origins. Brazilian SBM had 2% higher protein and amino acid compared to US or Argentine SBM (P<0.05). However, US SBM had slightly higher ME (20 and 40 kcal kg-1) compared to Brazilian and Argentine SBM, respectively. ME is positively correlated with protein (0.50) and fat content (0.58) but negatively correlated with fiber (-0.74) and NSP (-0.61). Stepwise regression analysis demonstrated that ME can be estimated using equation ME (kcal kg-1) = 75.7 – 21.0 x Fiber + 87.4 x Fat + 32.9 x Protein + 17.6 x NFE with reasonable accuracy (R2 = 0.995). In conclusion NIRS can be used to estimate nutrient content of SBM. Brazilian SBM has higher protein and amino acids, but US SBM has slightly higher ME content.

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