scholarly journals The Effect of Rainfall on Yellow Crude on Mangosis Fruit (Garciniamangostana L.)

2019 ◽  
Vol 4 (1) ◽  
pp. p29
Author(s):  
Mardawilis ◽  
Eddiwan

The research was carried out through case studies at six locations of mangosteen production centers in West Sumatra during the 2018 harvest season. The results showed that mangosteen fruit damage by yellow sap was distinguished from yellow sap in exocarp and endocarp with varying percentages between research locations. There was no correlation between yellow sap in exocarp and endocarp (r=0.0656). Yellow sap in exocarp and endocarp correlate with rainy days. The intensity of rainfall during the fruit development period does not correlate with yellow latex in the endocarp but the fluctuation in rainfall is very influential. Yellow sap at the lowest endocarp (15%) was found at the location of Station-5 with the lowest rainy day (44 days) and low rainfall fluctuations (40-240 mm/month) and the highest (47%) at Station-3 (104 days rain and rainfall fluctuations 96-512 mm/month). The Station-4 area with lower rainy days (80 days) but has high rainfall fluctuations (73-954 mm/month) also shows yellow latex at a higher endocarp (35%) compared to other locations. Yellow gum at the lowest exocarp (32%) found in Station-2 (63 rainy days, 00 m asl) and highest (69%) in Station-6 (94 rainy days, 490 m asl). Effect of rainy days and altitude on the sap yellow on the skin of the fruit can be explained through its relationship with environmental conditions needed for the proliferation of insects that cause yellow sap on the mangosteen rind.

Author(s):  
Hedvig Landenius Enegren

Textiles are perishables in the archaeological record unless specific environmental conditions are met. Fortunately, the textile tools used in their manufacture can provide a wealth of information and via experimental archaeology make visible to an extent what has been lost. The article presents and discusses the results obtained in a research project focused on textile tool technologies and identities in the context of settler and indigenous peoples, at select archaeological sites in South Italy and Sicily in the Archaic and Early Classical periods, with an emphasis on loom weights. Despite a common functional tool technology, the examined loom weights reveal an intriguing inter-site specificity, which, it is argued, is the result of hybrid expressions embedded in local traditions. Experimental archaeology testing is applied in the interpretation of the functional qualities of this common artefact.


2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Resti Ayu Lestari ◽  
Rinda Andhita Regia ◽  
Hafifatul Auliya Rahmy ◽  
Vezy Hidayatifa Thayyibah ◽  
Nadya Fadhillah Febrinaldi

The Covid-19 pandemic is affecting indoor tourism in West Sumatra. The spread of a virus through could be influenced by indoor air quality. This study aims to analyze the potensial spread of Covid-19 in the indoor tourism in West Sumatra based on the physical indoor air quality, including PM2.5 concentration, temperature, humidity, and light intensity. The research objects were Lubang Japang Bukittinggi and Istano Basa Pagaruyung. The research was conducted by using sampling and interview methods. The data obtained were compared to Permenkes No. 1077/Menkes/Per/V/2011 and the suitable environmental conditions for the virus. The results showed that the temperature values in tourist objects were below the standards used. The temperature value in the research objects ranged from 20oC to 30oC. The humidity, light intensity, and PM2.5 concentration values were outside the ranges stipulated by regulations. Lubang Japang humidity was: 75.97 - 94.76 Rh; Istano Basa Pagaruyung: 65.83 - 67.16 Rh. Lubang Japang light intensity was: 0.4 - 4.0 Lux; Istano Basa Pagaruyung: 28 - 38 Lux. The concentration of PM2.5 at Lubang Japang: 187.45 µg / Nm3; Istano Basa Pagaruyung: 77.29 µg / Nm3. Based on this research, the humidity and the PM2.5 concentration of the research objects have the potential to spread the Covid-19.


2012 ◽  
Vol 32 (7) ◽  
pp. 2004-2011 ◽  
Author(s):  
韩立新 HAN Lixin ◽  
汪有科 WANG Youke ◽  
张琳琳 ZHANG Linlin

2012 ◽  
Vol 104 ◽  
pp. 64-70 ◽  
Author(s):  
H. Velasco ◽  
A.S. Cid ◽  
R.M. Anjos ◽  
C.B. Zamboni ◽  
M. Rizzotto ◽  
...  

2014 ◽  
Vol 10 (11) ◽  
pp. 20140502 ◽  
Author(s):  
Brian G. Vassallo ◽  
Ryan T. Paitz ◽  
Vincent J. Fasanello ◽  
Mark F. Haussmann

Maternal effects have gained attention as a method by which mothers may alter the physiological condition and phenotype of their offspring based upon current environmental conditions. The physiological and phenotypic outcomes of glucocorticoid-mediated maternal effects have been extensively studied in a variety of vertebrates; however, the underlying mechanism is currently unclear. Here, we injected tritiated corticosterone into the yolks of freshly laid Japanese quail eggs ( Coturnix japonica ) and traced its movement and metabolism through the in ovo development period. We found that corticosterone was extensively conjugated throughout the egg by the end of development, and while minimal corticosterone was detected within the embryo during development, accumulation of a conjugated metabolite in the embryo started to occur on day 6 of development. Because no movement and metabolism of corticosterone occurred in infertile eggs, our findings suggest that embryos are not passive recipients of maternal steroids, but instead appear to possess extensive metabolic capabilities, which may modulate their exposure to maternal steroids.


1997 ◽  
Vol 122 (6) ◽  
pp. 772-777 ◽  
Author(s):  
J.L. Saenz ◽  
T.M. DeJong ◽  
S.A. Weinbaum

This study was designed to characterize the mechanisms of N-stimulated peach Prunus persica (L.) Batsch productivity. The effects of N fertilization on potential assimilate availability (source capacity) and on the growth capacity of individual fruit (sink capacity) were assessed. On heavily thinned trees, fertilization did not stimulate fruit growth rates relative to those on nonfertilized trees, suggesting that fruit growth rates were not assimilate-limited throughout the period of fruit development. However, N fertilization resulted in a longer fruit development period and increased the growth potential of individual fruit by 20% (fresh mass) and 15% (dry mass) vs. controls. In unthinned trees, N fertilization increased total fruit yield by 49% (fresh mass) and 40% (dry mass) compared to the unthinned, nonfertilized controls. N fertilization increased total fruit yield per tree in unthinned peach trees by extending the fruit development period and thus increasing the amount of assimilate accumulated for fruit growth. The fruit development period was prolonged both by assimilate deprivation associated with increasingly higher crop loads and by N fertilization. Thus, the prolongation of the peach fruit development period by N-fertilization appears inconsistent with the role of N in increasing assimilate availability for fruit growth. We conclude that N fertilization stimulates peach yields by increasing the period for fruits to use assimilates (sink capacity). The effect of N on assimilate availability was not directly evaluated. The timing of fertilizer N availability did not influence fruit growth potential.


Arsitektura ◽  
2017 ◽  
Vol 13 (2) ◽  
Author(s):  
Mohamad Nuriman ◽  
Soedwiwahjono Soedwiwahjono ◽  
Rufia Andisetyana Putri

<p><em>Garbage was one of the environmental problems. As time goes by, garbage has become that cause new problems like water pollution</em><em>, air </em><em>pollution, flood and others. Most of people seeing garbage as unused items that cannot work and then system of garbage management by government did not function properly. </em></p><p><em>Today begins to develop a sustainable garbage management with community role to managing garbage. One of the part of sustainable garbage management is garbage bank method. In sustainable garbage management method particularly with garbage bank must be adjusted and considered by environmental conditions local settlements in order to successfu</em><em>l</em><em>, the aspect related to housing components such as physical environment, economy, community, law, culture and the availability of utilities have an important relation in the development  of sustainable garbage management.</em></p><p><em>T</em><em>his research wants to know what is relationship between housing components and success of garbage bank method on sustainable garbage management, and the next step is identfy housing components and success of garbage bank in two area, RW IX Kelurahan Kadipiro and RW II Kelurahan Gajahan with scoring analyse and finally do the crosstab analyse to determine the relationship between both of them. </em><em></em></p><p><em>The conclusion is a housing components with individual aspect such as nature, society, shell and network have important relation with the success of garbage bank  method. This research is to identfy the housing components and success of garbage bank method in two case studies, so we can determine the relationship between both of them in RW IX Kelurahan Kadipiro and RW II Kelurahan Gajahan, Surakarta.</em><em></em></p><p><em> </em></p><p><strong><em>Keywords:</em></strong><em> sustainable garbage management, garbage bank, housing component</em><em>s</em></p>


HortScience ◽  
2014 ◽  
Vol 49 (10) ◽  
pp. 1324-1327 ◽  
Author(s):  
Andreas Winkler ◽  
Eckhard Grimm ◽  
Moritz Knoche ◽  
Julian Lindstaedt ◽  
Dirk Köpcke

Skin spot is a commercially important disorder of the fruit skin of ‘Elstar’ apples (Malus ×domestica Borkh.). The disorder is characterized by patches of small brownish dots (“skin spots”) that usually appear on the skin after fruit are removed from storage. Water-induced cuticular microcracks are implicated in the etiology of skin spot. The objectives of our study were 1) to establish the effect of surface wetness on the severity of skin spot; and 2) to identify possible relationships between meteorological records of rainfall over a number of seasons and the severity of skin spot in those seasons. Surface wetness treatments were imposed on fruit using overhead sprinklers installed above trees grown under a plastic rain shelter. During early fruit development [14 to 44 days after full bloom (DAFB)], surface wetness did not affect the severity of skin spot. However, during the later part of the growing season (greater than 44 DAFB), increased surface wetness increased the incidence and severity of skin spot and also the severity of cuticular microcracking. Most skin spots and microcracks were already present at harvest before storage, but skin spots and microcracking did increase slightly during subsequent controlled atmosphere (CA) storage. Over a 9-year period, the severity of skin spot in ‘Elstar’ apples grown and stored locally under standard orchard and storage conditions was positively correlated to the number of rainy days. This correlation was greater for the period between 1 Aug. to harvest than for periods 1 June to harvest or 1 July to harvest. Fruit treated with 1-methylcyclopropene (1-MCP) were more susceptible to skin spot than untreated control fruit. Calculating regression equations for the relationship between the severity of skin spot and the number of rainy days (period 1 Aug. and harvest) revealed that the (commercially important) threshold score for skin spot of 2 is predicted to occur after 44 rainy days for control fruit and after 34 rainy days for 1-MCP-treated fruit. Our data demonstrate that skin spot arises from cuticular microcracks, which in turn result from numerous exposures to surface wetness (rain, dew), especially those occurring during later stages of fruit development.


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