Rahmi Henda Yani, N. Khumaida, S. W. Ardie, M. Syukur
{"title":"Analysis of Variance, Heritability, Correlation and Selection Character of M1 V3 Generation Cassava (Manihot Esculenta Crantz) Mutants","authors":"Rahmi Henda Yani, N. Khumaida, S. W. Ardie, M. Syukur","doi":"10.17503/agrivita.v40i1.844","DOIUrl":"https://doi.org/10.17503/agrivita.v40i1.844","url":null,"abstract":"Information about genetic variability and correlation between qualitative character and yield are important to support a selection program. The objective of this research was to determine genetic variability, heritability, and path analysis of M1 V3 cassava mutants’ characters. This research was conducted at Bogor Agricultural University Experimental Field Research from May 2014 to May 2015. This research used 32 mutants from five cassava parent lines which were Malang-4 and Adira-4 (national varieties), UJ-5 (Introduction variety from Thailand), and two local genotypes from Halmahera which were Jame-jame and Ratim. The results showed that gamma ray irradiation increased variability from five cassava genotypes. Characters that had high heritability were length of leaf lobe, lengthof petiole, stem diameter, and the height of plant. The path correlation analysis showed that number of tubers, number of economic tuber (> 20 cm), height to first branchingand stem diameter had direct correlation with tuber mass per plant. The characters can be used for the selection of M1 V4 generation.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125151471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Antifungal Activity of Eucalyptus urophylla Oil Against Aspergillus niger and Fusarium oxysporum","authors":"R. Pujiarti, H. H. Nurjanto, S. Sunarta","doi":"10.17503/agrivita.v40i1.990","DOIUrl":"https://doi.org/10.17503/agrivita.v40i1.990","url":null,"abstract":"Essential oils obtained from Eucalyptus posses many bioactivities as fungicidal, antimicrobial, insecticidal and other activities. This study elucidated chemical compounds and antifungal activity of Eucalyptus urophylla leaves oil. Effectiveness of E. urophylla leaves oil were evaluated as antifungal against pathogenic fungi of A. niger and F. oxysporum. Eucalyptus urophylla oil was obtained by hydrodistillation method from fresh leaves of E. urophylla. Gas chromatography-mass spectrometry (GC-MS) analysis was used to analyze the chemical compounds of E. urophylla oil. Antifungal activity of E. urophylla oil was tested with in-vitro assay against A. niger and F. oxysporum strains with five levels of oil concentration (1 mg ml-1; 5 mg ml-1; 10 mg ml-1; 15 mg ml-1; 20 mg ml-1). GC-MS analysis showed the most abundant compounds of E. urophylla oil were 1,8-cineole (66.31 %), α-pinene (16.92 %), α-terpinyl acetate (6.00 %) and γ-terpinene (5.13 %). Antifungal assay showed inhibitory effects of E. urophylla against F. oxysporum with IC50 = 1.61 mg ml-1 and A. niger with IC50 = 13.56 mg ml-1. Antifungal activity of E. urophylla oil in this study was probably due to the presence of 1,8-cineole. Results indicated the possibility of E. urophylla as antifungal against F. oxysporum and A. niger.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129852904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thuch Phalla, T. Ota, N. Mizoue, T. Kajisa, S. Yoshida, M. Vuthy, S. Heng
{"title":"The importance of tree height in estimating individual tree biomass while considering errors in measurements and allometric models.","authors":"Thuch Phalla, T. Ota, N. Mizoue, T. Kajisa, S. Yoshida, M. Vuthy, S. Heng","doi":"10.17503/agrivita.v40i1.1730","DOIUrl":"https://doi.org/10.17503/agrivita.v40i1.1730","url":null,"abstract":"This study evaluated the uncertainty of individual tree biomass estimated by allometric models by both including and excluding tree height independently. Using two independent sets of measurements on the same trees, the errors in the measurement of diameter at breast height and tree height were quantified, and the uncertainty of individual tree biomass estimation caused by errors in measurement was calculated. For both allometric models, the uncertainties of the individual tree biomass estimation caused by the use of a specific allometric model were also calculated. Finally, the overall uncertainty of individual tree biomass by combining the two uncertainties was calculated. The allometric model including tree height was 6 % more accurate than that excluding tree height when the uncertainty caused by allometric models became the only consideration. However, in terms of the uncertainty caused by measurement, the allometric model excluding tree height was three times more accurate than allometric model including tree height. As a result, the allometric model excluding tree height was 5 % more accurate than the allometric model including tree height when both causes of uncertainty, the allometric model and measurement errors were considered. In conclusion, errors in tree height measurement have the potential to increase the error of aboveground biomass estimation.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134325537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Production of insect toxin beauvericin from entomopathogenic fungi Cordyceps militaris by heterologous expression of global regulator.","authors":"Rina Rachmawati, H. Kinoshita, T. Nihira","doi":"10.17503/AGRIVITA.V40I1.1727","DOIUrl":"https://doi.org/10.17503/AGRIVITA.V40I1.1727","url":null,"abstract":"Cordyceps militaris is one of entomopathogenic fungi species that is well known to be a traditional medicine in China for decades. Although the pharmaceutical and/or toxic properties of C. militaris has attracted attention as a promising resource for finding bioactive compounds, only a few substances including cordycepin have been reported so far. In the previous report heterologous expression of LaeA, a global regulator for secondary metabolites production in fungi, has been succeeded in C. militaris . The LaeA- engineered transformants are proved to produce new and/or elevated production of secondary metabolites, as detected by HPLC analysis. In order to further characterize the secondary metabolites that were being significantly produced by LaeA transformant, HPLC profiling and structure elucidation by proton NMR were conducted in two target compounds, designated as compound 1 and compound 2. Compound 1 possessed the highly similar characters to insect toxin beauvericin in UV spectrum, molecular weight, and retention time in HPLC analysis. Proton NMR analysis revealed that compound 1 had the same proton signals as beauvericin.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131362718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Genetics Analysis and Heritability of Fruit Characters in Muskmelon (Cucumis melo L.) Using Extreme Parental Differences","authors":"Sunisa Sakulphrom, S. Chankaew, J. Sanitchon","doi":"10.17503/agrivita.v40i1.1133","DOIUrl":"https://doi.org/10.17503/agrivita.v40i1.1133","url":null,"abstract":"Taeng-Thai is the Thai name for oriental pickling melon or muskmelon (Cucumis melo L.) which is a Cucumis species. Based on consumption as Thai traditional dessert, fruit characters at ripening stage are very important to improve the muskmelon cultivar. Understanding the genetic control of fruit traits is the key to a successful for crop improvement. Research aimed to determine the genetic effects, number of genes and heritability of fruit characters in muskmelon. The results have shown that both additive and dominant effects governed for fruit weight, fruit length, fruit width and fruit thickness with the number of gene as 40.26, 1.55, 10.70 and 11.10 genes, respectively. Simple phenotypic correlation coefficients shown, had a significant positive correlation among the four fruit traits. Due to the quantitative inheritance of fruit characters, quantitative traits loci (QTL) mapping of those traits were necessary to identify all controlling genes of fruit traits in further muskmelon improvement.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130987590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Discriminating Land Characteristics of Yield and Total Sugar Content Classes of Cilembu Sweet Potato (Ipomoea batatas L.)","authors":"M. Solihin, S. Sitorus, A. Sutandi, W. Widiatmaka","doi":"10.17503/agrivita.v40i1.1148","DOIUrl":"https://doi.org/10.17503/agrivita.v40i1.1148","url":null,"abstract":"Cilembu sweet potato is a unique commodity with high demand market due to its sweet taste. The objectives of this study were to investigate the production performance of Cilembu sweet potatoes in term of production classes and critical limit and to determine discriminating land characteristics classes of yield and total sugar content. This study was conducted in Cilembu sweet potatoes production centers in West Java. Sweet potatoes tuber and soil samples were collected by purposive random sampling during harvest. Cilembu sweet potatoes production classes were defined by decreasing yields criteria in land evaluation. Critical limit production was the lowest yield and total sugar content of raw tuber which harvested in Cilembu village. Discriminating land characteristics were decided by discriminant analysis. Results showed that there was a significant different yield between typical and nontypical areas. Critical limit of yield and total sugar content were 10.5 t ha-1 and 2.32 %, respectively. The discriminating land characteristics of yield classes were soil properties (pH, CEC, P, Ca, Mg, ΔT), and monthly rainfall, whereas for total sugar content classes were effective soil depth, clay, sand and monthly rainfall. These variables are proposed as diagnostic criteria in Cilembu sweet potato land suitability criteria.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115397632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Floral Stimulation and Behavior of Insect Pollinators Affected by Pyraclostrobin on Arabica Coffee","authors":"Hagus Tarno, K. Wicaksono, Edson Begliomini","doi":"10.17503/AGRIVITA.V40I1.1719","DOIUrl":"https://doi.org/10.17503/AGRIVITA.V40I1.1719","url":null,"abstract":"Coffee is the most valuable traded commodity after oil. On coffee, bees act to support a pollination that is shown by the number of harvested berries. This research aimed to evaluate the use of pyraclostrobin on flowering stage and insect pollinators on Arabica Coffee. Experiment was conducted in Kalisat Coffee Farm, Jampit, Bondowoso, ca. 1600 meters after sea level from October 2013 to April 2014. Randomized Block Design was adopted in this experiment. Three doses of pyraclostrobin and control were used as treatments such as 1.0, 1.5 and 2.0 cc L-1 of pyraclostrobin, and repeated three times. Percentage of fallen flower, fruiting stage, fruit production, frequency of bee`s visitation, and bee`s behavior was observed as variables in this experiment. Results showed that 1) percentage of fallen flowers was reduced by applying pyraclostrobin at 1.5 and 2.0 cc L-1 up to 50 % compared to control, 2) flowering rate was faster than control at 1.5 and 2.0 cc L-1 of pyraclostrobin, 3) application of 1.5 – 2.0 cc L-1 of pyraclostrobin increased the number of young fruits and pinheads, and 4) pollinators preferred to visit flowers of coffee trees which sprayed by pyraclostrobin than control treatment especially Apis mellifera.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"88 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126512781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Affandi Affandi, C. Medina, L. Velasco, P. A. Javier, D. Depositario
{"title":"Development and survivorship of Scirtothrips dorsalis hood (Thysanoptera: Thripidae) in different growth stages of mango and selected weeds.","authors":"Affandi Affandi, C. Medina, L. Velasco, P. A. Javier, D. Depositario","doi":"10.17503/agrivita.v40i0.1650","DOIUrl":"https://doi.org/10.17503/agrivita.v40i0.1650","url":null,"abstract":"The research objective was to quantify the development and survivorship rate of S. dorsalis in different phenological stages of mango and selected weeds. The research was conducted in the laboratory of PT. Trigatra Rajasa, Mango plantation in Ketowan, Arjasa, Situbondo, East Java, Indonesia from February to September 2015. The development and survivorship rate were done through observation of life span of S. dorsalis from egg to pupa. Analysis of Variance and Duncan Multiple Range Test (p = 0.05) with 5 replications were applied to ensure the significant differences among the treatments. The result showed that development and survivorship of Scirtothrips dorsalis were supported by mango flushes and flower as well as some weeds such as Leucania leucochepala , Ipomoea triloba , Achalypha indica , Desmanthus leptophyllus and Azadirachta indica as source of food. Achalypha indica was the most suitable host with development time (12.82 ± 0.21 days) and survivorship (33 %). Weed Tridax procumbent , Momordica charantia and Mimosa pudica were unable to provide the living requirement for immature developmental stage of S. dorsalis.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133509029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Water Seed Priming on Establishment of Direct Seeded Rice in Well Watered Conditions and Aerenchyma Formation under Varying Water Regimes","authors":"Quaqua S. Mulbah, J. Adjetey","doi":"10.17503/AGRIVITA.V40I1.1457","DOIUrl":"https://doi.org/10.17503/AGRIVITA.V40I1.1457","url":null,"abstract":"The application of seed hydro-priming as a tool for managing the adverse effect of flooding on seed germination and emergence in rice was studied, along with aerenchyma formation in sections of roots for comparisons between rice subjected to flooded and non-flooded conditions during establishment. Three replicates of three hydro-priming times (0, 24 and 48 h) were used on three cultivars. Seeds were germinated in a growth chamber at 25 o C, 65 % RH, or sown in pots in a controlled temperature glasshouse for the emergence and aerenchyma studies. Aerenchyma formation in root cortical tissues was determined from microscopic images of hand-cut sections at 5 and 50 mm behind the tips of 60-70 mm long nodal roots. The results showed that hydro-priming for both 24 and 48 h significantly hastened germination and emergence. Water seed-priming increased plant height from 20 mm to 40 mm 4 days after sowing. Flooding for 7 days significantly enhanced aerenchyma formation at 50 mm behind the root tips. The results showed that hydropriming for 48 h was the best seed invigoration treatment for shortening the mean emergence time. It hopefully provides seeds an opportunity to escape from the negative effect of flooding on seedling establishment.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122576875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"REDD+ Financing to Enhance Climate Change Mitigation and Adaptation and Biodiversity Co-benefits: Lessons from the Global Environment Facility","authors":"Kanako Morita, Ken’ichi Matsumoto","doi":"10.17503/agrivita.v40i0.1729","DOIUrl":"https://doi.org/10.17503/agrivita.v40i0.1729","url":null,"abstract":"This study explores ways to effectively and efficiently finance Reducing Emissions from Deforestation and Forest Degradation (REDD+) activities to enhance climate change adaptation and biodiversity conservation by drawing on lessons from the Global Environment Facility (GEF). The study analyzed trends in the focal areas of GEF forest-related projects, the executing and implementing agencies involved in GEF forest-related multi-focal area projects, and the cofundraisers’ trends in GEF forest-related multi-focal area projects. The analysis of GEF forest-related projects identified ways to finance REDD+ mobilization and distribution to enhance its multiple benefits. The key agencies that support REDD+ activities and enhance these co-benefits are the United Nations Development Program (UNDP), the Food and Agricultural Organization (FAO), the World Bank, the United Nations Environment Program (UNEP), and the national governments of developing countries. GEF and the co-fundraisers—multilateral aid agencies, such as UNDP, the World Bank, FAO, the Asian Development Bank, and UNEP, bilateral aid agencies, such as Germany, the United States and the European Union, the private sector and nongovernmental organizations—all work to enhance REDD+ co-benefits. Because private contributions to the GEF are limited, it is important to design a scheme to mobilize more private financing for REDD+.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121370996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}