Analysis of limiting fators of RGL citrus fruit productivity (study case in Pal VII Village, Bermani Ulu Raya Subdistrict, Rejang Lebong District)

Siagian, Irma Calista; Nurmegawati,; Puspitasari, May Shiska; Miswarti,; Dinata, Kusmea; Mikasari, Wilda; Hartono, R. W. Tri; Yuliasari, Shannora; Sastro, Yudi

doi:10.1088/1755-1315/648/1/012008

Cited by 8 publications

(6 citation statements)

References 11 publications

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“…Citrus production is largely determined by the use of inputs and will also affect the amount of production costs, as well as farmers' income. The results of research by Abbas et al (2017) and Siagian et al (2021), differ from the overall results of this study, that several factors that also affect citrus production are socioeconomic factors (age, education, experience, skills and income of citrus farmers). On the other hand, natural factors (rainfall) and pest and disease attacks as well as low land fertility are also limiting factors for citrus farming productivity.…”

Section: Resultscontrasting

confidence: 99%

Implementation of conservation farming and its effect on farmers' income: A study on citrus farmers in Petung Sewu Village, Dau District, Malang Regency

Asnah

Melfinsius²,

Cakti³

2022

Agriekonomika Jurnal Sosial EKonomi dan Pertanian

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This study aims to analyze the effect of applying vegetation and mechanical conservation on the income of citrus farmers. The method of determining the sample was simple random with a sample of 86 people. Data analysis used the income function model with multiple linear regression method. The results showed that the application of conservation that had a significant effect on income was the application of vegetation conservation, while other variables that had a significant effect were land area, plant maintenance costs, chemical fertilizer costs, pesticide costs and labor costs. The vegetation conservation is the best conservation, and profitable that is widely applied by farmers. This model has a significant effect on farmers' income with a significance level of 90 percent. Thus, the application of conservation adapts to land conditions, and increases the income of linear farmers with the ability of farmers to finance.

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Section: Resultscontrasting

confidence: 99%

Implementation of conservation farming and its effect on farmers' income: A study on citrus farmers in Petung Sewu Village, Dau District, Malang Regency

Asnah

Melfinsius²,

Cakti³

2022

Agriekonomika Jurnal Sosial EKonomi dan Pertanian

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“…comm., September 2022). In Sumatra (Indonesia), infestation level appears to be related to fruit age/ripening status (Siagian et al, 2021).…”

Section: Background Information and Host Distributionmentioning

confidence: 99%

Risk assessment of Citripestis sagittiferella for the EU

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2023

EFS2

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Following a request from the European Commission, the EFSA Panel on Plant Health performed a risk assessment of Citripestis sagittiferella (Lepidoptera: Pyralidae), the citrus pulp borer, an oligophagous pest reported from South-East Asia and restricted to Citrus spp. The entry risk assessment focused on the citrus fruit pathway. Two scenarios were considered: scenario A0 (current practice) and A2 (additional post-harvest cold treatment). Based on the outputs of the entry model obtained in scenario A0, the median number of founder populations in the EU citrus-growing area is estimated to be slightly less than 10 per year (90%-uncertainty interval between about one entry per 180 years and 1,300 entries per year). The risk of entry and the simulated numbers of founder populations are orders of magnitude lower for scenario A2 compared to scenario A0. The key uncertainties in the entry model include transfer, the cold treatment effectiveness, the disaggregation factor and sorting. The simulated numbers of established populations are only slightly lower than the numbers of founder populations. As the probability of establishment has little impact on the number of established populations, it is not a major source of uncertainty, despite the lack of data on the thermal biology of the pest. The median lag period between establishment and spread is estimated to be slightly more than 1 year (90%uncertainty interval between about 2 months and 33 months). After the lag period, the median spread rate by natural means (flying) and due to transport of harvested citrus fruit from orchards to packinghouses is estimated at about 100 km/year (90%-uncertainty interval between about 40 and 500 km/year). The main sources of uncertainties affecting the spread rate include the extent to which environmental factors could hamper the build-up of the populations and the lack of data on the spread rate at the origin. The median impact of C. sagittiferella in the EU citrus-growing area is estimated at about 10% of infested fruits among the harvested citrus fruits (90%-uncertainty interval between about 2% and 25%). Uncertainties affecting the impact assessment include the susceptibility of different Citrus species and cultivars.

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“…It indicated that the bioactive compounds of C. reticulata from different planting locations might differ from the same species (Abeysinghe et al 2007;Wang et al 2019;Wang et al 2020). The difference in secondary metabolites could be due to genetic variations, availability of nutrients, and environmental conditions where they are grown (Anggraheni 2021;Siagian et al 2021). In addition, the difference in the number of identified compounds may be influenced by the sensitivity of the LC-QTOF-MS/MS used.…”

Section: Identified Bioactive Compounds In Rgl Orange Extractmentioning

confidence: 99%

“…It was designated as a national superior variety by the Ministry of Agriculture of the Republic of Indonesia in 2012 because it can bear fruit throughout the year with two harvests in one year (Astuti et al 2018). In addition, RGL oranges are yellow-orange and are in great demand by local people (Siagian et al 2021). This RGL orange development program is mainly located in PAL VIII Village, Bermani Ulu Raya Sub-district, Rejang Lebong District, with an area of 200 hectares.…”

Section: Introductionmentioning

confidence: 99%

Short Communication: Analysis of detected metabolites compounds from the crude extract of Rimau Gerga Lebong oranges fruit (Citrus reticulata ‘RGL’) using LC-QTOF-MS/MS

et al. 2022

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Abstract.Yunita E, Kurniati T, Rosa FL, Melati P, LestariN. 2022. Short Communication: Analysis of detected metabolites compounds from the crude extract of Rimau Gerga Lebong orangesfruit (Citrus reticulata ‘RGL’) using LC-QTOF-MS/MS. Biodiversitas 23: 3778-3783. Rimau Gerga Lebong (RGL) oranges are the leading commodity in Bengkulu Province. However, the content of bioactive compounds in RGL oranges has not been widely reported. This study aims to identify the flavonoid, alkaloids, and tannins from the ethanol extract of RGL oranges. The results of further identification will be used as a reference in further research on molecular docking in various biological activities. Chemical compounds were identified using qualitative tandem liquid chromatography quadrupole time of flight mass spectrometry (LC-QTOF-MS/MS). The measurement of vitamin C levels was carried out using High-Performance Liquid Chromatography (HPLC). The results showed 25 identified compounds, consisting of 6 compounds belonging to the alkaloid group, 17 from the flavonoid group, and 2 from the tannin group. The alkaloid group compounds were 2?, 3?, 6exo-trihydroxy nortopane, 2?, 3?-dihydroxy nortopane, isosalsolin,3?-dihydrocadambine, chelidimerine, and oleracein D. The compounds from identified flavonoid group were chebuloside, neokurarinol, rutinoside, flavonone, glucoside, licochalcone, viscumneoside, and pinnatifinoside. The identified tannins are corilagin and moracin. These compounds that have been identified have biological activity potential as antioxidants, anti-asthma, anti-dementia, and anticancer. The vitamin C content of the ethanol extract of RGL oranges was 0.02±0.0001%. This vitamin C supports the antioxidant activity of RGL orange.

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Analysis of limiting fators of RGL citrus fruit productivity (study case in Pal VII Village, Bermani Ulu Raya Subdistrict, Rejang Lebong District)

Cited by 8 publications

References 11 publications

Implementation of conservation farming and its effect on farmers' income: A study on citrus farmers in Petung Sewu Village, Dau District, Malang Regency

Implementation of conservation farming and its effect on farmers' income: A study on citrus farmers in Petung Sewu Village, Dau District, Malang Regency

Risk assessment of Citripestis sagittiferella for the EU

Short Communication: Analysis of detected metabolites compounds from the crude extract of Rimau Gerga Lebong oranges fruit (Citrus reticulata ‘RGL’) using LC-QTOF-MS/MS

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