Agrivita : Journal of Agricultural Science最新文献_第9页

Analysis of Agricultural Drought in East Java Using Vegetation Health Index 利用植被健康指数分析东爪哇农业干旱

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/AGRIVITA.V40I1.1080

L. F. Amalo, R. Hidayat, S. Sulma

{"title":"Analysis of Agricultural Drought in East Java Using Vegetation Health Index","authors":"L. F. Amalo, R. Hidayat, S. Sulma","doi":"10.17503/AGRIVITA.V40I1.1080","DOIUrl":"https://doi.org/10.17503/AGRIVITA.V40I1.1080","url":null,"abstract":"Drought is a natural hazard indicated by the decreasing of rainfall and water storage and impacting agricultural sector. Agricultural drought assessment has been used to monitor agricultural sustainability, particularly in East Java as national agricultural production center. Identification of drought characteristics –correlated with El Nino-Southern Oscillation, and agricultural impact on paddy fields and rice production using VHI (Vegetation Health Index) were conducted. VHI is produced by TCI (Temperature Condition Index) and VCI (Vegetation Condition Index) derived from MODIS satellite data, LST (Land Surface Temperature) and EVI (Enhanced Vegetation Index), respectively. The results showed agricultural drought usually started in June, maximum in October and ended in November. Onset and end time drought tends to follow monsoonal rainfall pattern. El Nino 2015 showed long duration of agricultural drought (i.e. ± 5 months), high severity (i.e. mild-extreme drought; VHI 0-40) and areal extent of drought approx. 197,343 km2, while during La Nina 2010 the areal extent was approx. 28,685 km2 with mild-severe drought (VHI 10-40). Impact of agricultural drought on paddy fields showed wider (smaller) areal extent in sub-round 3 (sub-round 1) from September-December (January-April). Areal extent of drought was negatively correlated with rice production (r=-0.79) which significant in 99 % confidence level.","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":"130379105","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}

引用次数: 16

Does Landscape Complexity and Semi-Natural Habitat Structure Affect Diversity of Flower-Visiting Insects in Cucumber Fields? 景观复杂性和半自然生境结构对黄瓜田访花昆虫多样性的影响?

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/agrivita.v40i0.1722

A. Rizali, D. Buchori, S. Susilawati, Pudjianto Pudjianto, Y. Clough

{"title":"Does Landscape Complexity and Semi-Natural Habitat Structure Affect Diversity of Flower-Visiting Insects in Cucumber Fields?","authors":"A. Rizali, D. Buchori, S. Susilawati, Pudjianto Pudjianto, Y. Clough","doi":"10.17503/agrivita.v40i0.1722","DOIUrl":"https://doi.org/10.17503/agrivita.v40i0.1722","url":null,"abstract":"Presence of insects in agricultural habitat is affected by the surrounding circumstances such as the complexity and structure of landscape. Landscape structure is often formed as a consequence of the fragmentation of semi-natural habitat, which can negatively affect species richness and abundance of insects. This study was aimed to study the effect of complexity and structure of landscape on the diversity, abundance and traits of flower-visiting insects in cucumber fields. This study was conducted in cucumber fields surrounded by other agricultural crops, shrubs, semi-natural habitat and housing area, in Bogor, Cianjur and Sukabumi regencies, West Java, Indonesia. In a total of 16 agricultural areas, complexity and parameter of landscape especially class area (CA), number of patches (NumP), mean patch size (MPS), total edge (TE), and mean shape index (MSI) of seminatural habitats were measured. Sampling of flower-visiting insects was conducted using scan sampling methods. The result showed that landscape complexity affected species richness (but not abundance and trait) of flower-visiting insects both for mobile and less-mobile insects. Flower-visiting insects also responded differently to landscape structure. Species richness, abundance and variation of body size of mobile insects were affected by structure of semi-natural habitat.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"40 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":"131312102","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}

引用次数: 5

Distribution of the Endophytic Fungi in Apple Leaves 苹果叶片内生真菌的分布

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/agrivita.v40i1.1563

Aminudin Afandhi, Fery Abdul Choliq, W. S. H. Anggrilika, Hagus Tarno

{"title":"Distribution of the Endophytic Fungi in Apple Leaves","authors":"Aminudin Afandhi, Fery Abdul Choliq, W. S. H. Anggrilika, Hagus Tarno","doi":"10.17503/agrivita.v40i1.1563","DOIUrl":"https://doi.org/10.17503/agrivita.v40i1.1563","url":null,"abstract":"Endophytic fungi have roles to protect the plant from herbivorous insects and diseases, and to support the absorption process of nutrients needed by plants for photosynthesis. Related to the important role of endophytic fungi, research was aimed to identify fungal endophytes associated with young, mature and old leaves on apple and to evaluate the effect of leaf ages on the abundance and diversity of endophytic fungi. The research was conducted in Biological Control Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya from May to September 2016. Apple leaves sampling was done diagonally, and taken from nine apple trees. Based on macroscopic and microscopic characteristics, 38 isolates were identified. In the old apple leaves, it obtained 17 isolates that consisted of 5 genera, mature leaves obtained 14 isolates consisted of 6 genera, and young leaves 7 isolates obtained consists of 2 genera. The mature leaves have highest abundance and diversity of endophytic fungi compared to young and old leaves. Endophytic fungi apple leaf dominated by Aspergillus. Mature and young leaves were different from old one based on Bray-Curtis similarity.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"33 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":"127756139","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}

引用次数: 6

Genetic Diversity Analysis in 27 Tomato Accessions Using Morphological and Molecular Markers 27份番茄材料形态和分子标记遗传多样性分析

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/agrivita.v40i1.726

C. Herison, S. Sutjahjo, I. Sulastrini, R. Rustikawati, S. Marwiyah

引用次数: 19

The Phenotypic Performances of Gerbera Local Bali X Rubby Red Hybrids 非洲菊本地巴厘X红宝石杂交品种的表型表现

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/AGRIVITA.V40I1.1375

K. Yuniarto, R. Kurniati, S. Suryawati, R. Meilasari

{"title":"The Phenotypic Performances of Gerbera Local Bali X Rubby Red Hybrids","authors":"K. Yuniarto, R. Kurniati, S. Suryawati, R. Meilasari","doi":"10.17503/AGRIVITA.V40I1.1375","DOIUrl":"https://doi.org/10.17503/AGRIVITA.V40I1.1375","url":null,"abstract":"Gerbera is one of important cut flowers in floriculture industries. It can substitute of chrysanthemum. The novelty of cultivar and superiority of characteristic of gerbera are necessary in the floriculture markets. New cultivars can be created through hybridization between cultivars. This study aimed to find out the phenotypic performances of gerbera hybrids of Local Bali x Rubby Red. The research was conducted in Indonesian Ornamental Crops Research Institute, West Java, Indonesia from January 2014 to September 2015. Eight progenies of F1 hybrids and their parents (Local Bali and Rubby Red) were used as materials. In the hybridization process Local Bali and Rubby Red were used as female and male parents respectively. Genetic variabilities of Gerbera were achieved through this hybridization. Gerbera progeny no. 20.009 had the longest inflorescence diameter, the biggest outer sepal and the highest number of sepals compared to the others. The flower vase life of this progeny was not significantly difference to the male parent. Qualitative characters observation showed that the hybrids were classified into two groups based on flower type, four groups of outer ray florets and two-disc groups of petal color.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"6 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":"133186847","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}

引用次数: 3

The Endophytic Bacteria, Salicylic Acid, and their Combination as Inducers of Rice Resistance Against Xanthomonas oryzae pv. oryzae 内生细菌、水杨酸及其组合作为水稻抗水稻黄病菌的诱导剂。oryzae

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/agrivita.v40i1.1029

Christoffol Leiwakabessy, M. S. Sinaga, Kikin H. Mutaqien, T. Trikoesoemaningtyas, G. Giyanto

{"title":"The Endophytic Bacteria, Salicylic Acid, and their Combination as Inducers of Rice Resistance Against Xanthomonas oryzae pv. oryzae","authors":"Christoffol Leiwakabessy, M. S. Sinaga, Kikin H. Mutaqien, T. Trikoesoemaningtyas, G. Giyanto","doi":"10.17503/agrivita.v40i1.1029","DOIUrl":"https://doi.org/10.17503/agrivita.v40i1.1029","url":null,"abstract":"Bacterial leaf damage or blight brought by bacteria Xanthomonas oryzae pv. oryzae (X. oryzae pv. oryzae) is considered as an extremely serious disease of rice worldwide, including Indonesia. Induced resistance using chemical and biological agents was considered as a method to control the disease. The objectives of this research were to analyze of endophytic bacteria (Lysinibacillus sphaericus/L.sphaericus) and salicylic acid as the inducers of rice resistance against X. oryzae pv. oryzae. This study used three-factorial incompletely randomized designs to study the effect of endophytic bacteria and salicylic acid on three varieties of rice. The results of the study showed that endophytic bacteria and salicylic acid induced rice resistance to X. oryzae pv. oryzae. This endophytic bacterium was also able to increase the plant height (AUPHGC), the number of tillers (AUNTGC), and the number of productive tillers. The application of salicylic acid at the concentrations of 10 mM was able to suppress the BLB disease and increased the number of tillers and 1000-grain weight. The result of study showed that the endophytic bacteria and salicylic acid could induce resistance of rice varities against BLB disease and increased the number of productive tillers.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"14 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":"117294633","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}

引用次数: 7

Genotypic Variability in Carbon Isotope Discrimination and Water Use Efficiency Among Recombinant Inbred Lines of Sunflower (Helianthus Annuus L.) 向日葵重组自交系碳同位素识别和水分利用效率的基因型变异

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/AGRIVITA.V40I0.1728

A. Adiredjo, P. Grieu

{"title":"Genotypic Variability in Carbon Isotope Discrimination and Water Use Efficiency Among Recombinant Inbred Lines of Sunflower (Helianthus Annuus L.)","authors":"A. Adiredjo, P. Grieu","doi":"10.17503/AGRIVITA.V40I0.1728","DOIUrl":"https://doi.org/10.17503/AGRIVITA.V40I0.1728","url":null,"abstract":"To evaluate genotypic variability in carbon isotope discrimination or CID and water use efficiency or WUE, recombinant inbred lines (RILs) population of sunflower ( Helianthus annuus L.) was used. Seventy eight sunflower RILs were grown in greenhouse and 100 sunflower RILs were grown under field condition, and measured some morphological and physiological traits including leaf area at flowering (LAf), net CO2 assimilation rate ( A ) and transpiration per day at flowering (Ef). WUE, called “potential” WUE (WUEp), was calculated as the ratio of assimilation potential (Ap) to transpiration per day at flowering (Ef) where Ap was derived from the multiplication of A with LAf. The CID was significantly varied among RILs and there was significant negative genetic correlation between CID and WUEp. Heritability of the CID was higher rather than the WUEp which reflected wide genetic variability of CID. The genetic correlation between CID and WUEp and the wide genotypic variability of CID indicated that CID can be proposed as an indicator to determine WUE in sunflower and open a way in understanding the genetic diversity of the RILs which could be used as a basic consideration before applying selection program in sunflower breeding.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"155 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":"128221834","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}

引用次数: 1

A Study of the Efficacy of Various Nutrient Sources on the Growth and Yield of Cabbage 不同营养源对白菜生长和产量影响的研究

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/agrivita.v40i1.1721

M. D. Maghfoer, Koesriharti Koesriharti, T. Islami, N. Kanwal

引用次数: 5

A Combination of IBA and NAA Resulted in Better Rooting and Shoot Sprouting than Single Auxin on Malay Apple [Syzygium malaccense (L.) Merr. & Perry] Stem Cuttings IBA和NAA组合对马来苹果生根发芽的影响优于单一生长素。稳定。茎茎插条

Agrivita : Journal of Agricultural Science Pub Date : 2018-02-01 DOI: 10.17503/AGRIVITA.V40I0.1210

Yusnita Yusnita, J. Jamaludin, Agustiansyah Agustiansyah, D. Hapsoro

{"title":"A Combination of IBA and NAA Resulted in Better Rooting and Shoot Sprouting than Single Auxin on Malay Apple [Syzygium malaccense (L.) Merr. & Perry] Stem Cuttings","authors":"Yusnita Yusnita, J. Jamaludin, Agustiansyah Agustiansyah, D. Hapsoro","doi":"10.17503/AGRIVITA.V40I0.1210","DOIUrl":"https://doi.org/10.17503/AGRIVITA.V40I0.1210","url":null,"abstract":"This research aimed to study effects of IBA, NAA and their combination on rooting and shoot sprouting in Malay apple cuttings. Cuttings from superior genotype were collected and treated with (in ppm w/w): 0, 2000 IBA, 4000 IBA, 2000 NAA, 4000 NAA, 1000 IBA+1000 NAA, 2000 IBA+2000 NAA. To record the timing and percentage of rooting, cuttings were treated with (in ppm w/w) 1000 IBA+1000 NAA or without auxin as control. The results revealed that application of auxin was significantly enhanced root formation as shown by the significant increases in rooting percentage and number of roots. NAA at 2000 or 4000 ppm was the most effective auxin to promote root formation (100 %, 17.8–25.5 roots per cuttings), followed by NAA+IBA (100 %, 16.8– 9.8 roots per cuttings) and the least effective was IBA alone (79-100 %, 3.2–7.1 roots per cutting). The best treatment for rooting and shoot sprouting were (in ppm) 1000 IBA+1000 NAA, since it produced higher root length, better root morphology and higher shoot sprouting. It was also found that a combination of IBA+NAA each at 1000 ppm not only enhanced root percentage, but also shortened the time for root formation.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"217 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":"134455977","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}

引用次数: 17

Determination of Phenolic and Flavonoid Contents, Antioxidant Activities and GC-MS Analysis of Clinacanthus nutans (Acanthaceae) in Different Locations 不同产地棘棘科棘棘的酚类、类黄酮含量测定、抗氧化活性及GC-MS分析

Agrivita : Journal of Agricultural Science Pub Date : 2017-08-07 DOI: 10.17503/agrivita.v39i3.1076

Noor Zafirah Ismail, Hasni Arsad, M. Samian, M. Hamdan

{"title":"Determination of Phenolic and Flavonoid Contents, Antioxidant Activities and GC-MS Analysis of Clinacanthus nutans (Acanthaceae) in Different Locations","authors":"Noor Zafirah Ismail, Hasni Arsad, M. Samian, M. Hamdan","doi":"10.17503/agrivita.v39i3.1076","DOIUrl":"https://doi.org/10.17503/agrivita.v39i3.1076","url":null,"abstract":"Clinacanthus nutans is an essential medicinal plant that had been used in various local remedies to treat many illnesses. A study had been conducted to determine the phenolic, flavonoid, antioxidant activities and phytochemical compounds of C. nutans in different locations. C. nutans were harvested from eight locations and the leaves were extracted with 80 % methanol by maceration process. Then, the phytochemical screening using Gas Chromatography-Mass Spectrometry (GC-MS), 2,2 diphenyl-2-picrylhydrazyl hydrate (DPPH) assay method, total phenolic content by Folin Ciocalteu’s assay method and total flavonoid content by aluminium chloride (AlCl3) were carried out. The C. nutans extracts showed higher antioxidant activities than phenolic and flavonoid content. The neutral pH sandy clay soil from location KKK (Kuala Ketil, Kedah, Malaysia) had higher antioxidant activities (58.0 %), phenolic (44.1 mg GA.100 g-1) and flavonoid content (30.8 mg QE.100 g-1) compared to other locations. The GC-MS analysis showed the presence of phytochemicals constituents of 20 compounds. The results revealed that environmental factors (light intensity, temperature and soil characteristics) of eight locations were responsible for variations of phenolic, flavonoids, antioxidants and GC-MS analysis in C. nutans. The findings of this study will provide baseline data for future breeding programs for commercial cultivation.","PeriodicalId":402006,"journal":{"name":"Agrivita : Journal of Agricultural Science","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114495623","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}

引用次数: 25