Karakter Morfologi Daun Ubi Jalar Sebagai Bahan Pangan Suku Dani Distrik Kurulu Jayawijaya

Agrotek ◽  
2018 ◽  
Vol 2 (3) ◽  
Author(s):  
Antonius Suparno ◽  
Opalina Logo ◽  
Dwiana Wasgito Purnomo

Sweet potato serves as a staple food for people in Jayawijaya. Many cultivars of sweet potatoes have been cultivated by Dani tribe in Kurulu as foot for their infant, child and adult as well as feeding especially for pigs. Base on the used of sweet potatoes as food source for infant and child, this study explored 10 different cultivars. As for the leaf morphology, it was indentified that the mature leaves have size around 15 � 18 cm. general outline of the leaf is reniform (40%), 60% have green colour leaf, 50% without leaf lobe, 60% of leaf lobes number is one, 70% of shape of central leaf lobe is toothed. Abazial leaf vein pigmentation have purple (40%), and petiole pigmentation is purple with green near leaf (60%), besides its tuber roots, sweet potatoes are also harvested for its shoots and green young leaves for vegetables.

Author(s):  
Wilhelmina Lekawael ◽  
Alwi Smith

Background: Cassava (Dioscorea sp.) Is a seasonal crop with twisted stems and forming yam. Sweet potatoes contain a large amount of carbohydrates, can be the basic ingredients of making flour, ethanol or alcohol. Method: The population in this study were 25 community-owned yams. This research conducted for 1 month from January 6 to February 6, 2016. Variable in this research is identification of type of sweet potato in Ilmarang Village. Result: Identification of 25 community gardens found 4 types of potatoes consisting of: cassava (Manihot esculenta Crants), sweet potato (Ipomea batatas L.), yam taro (Colocasia esculeata L.) and yam gembili (Diascorea esculenta L). Conclusion: Utilization of cassava as staple food of rice substitute and processed into various kinds of products such as crackers and food


2008 ◽  
Vol 3 (2) ◽  
pp. 101 ◽  
Author(s):  
Anna Vipta Resti Mauludyani ◽  
Drajat Martianto ◽  
Yayuk Farida Baliwati

<p class="MsoNormal" style="margin: 0cm 13.05pt 6pt 17.85pt; text-align: justify; text-indent: 26.95pt;"><span style="font-size: 10pt;">Food demand can be found dynamic, altering by the change in price and income. How great the influence of those changes to food consumption is the important information as the basic consideration for government in creating policy related to food consumption. The objective of the research, which has survey design, was to analyze staple food consumption and demand pattern in household in Indonesia. The research was conducted in Bogor, from March to June 2008 by using secondary data Susenas year 2005 with 64.709 households as the samples. The staple food analyzed were rice, corn, cassava, sweet potato, wheat flour and its derived product (instant noodle, noodle). Data was processed by SAS program version 6.12 and Double-Log Regression econometrical model. Then, it was analyzed descriptively. </span><span style="font-size: 10pt;">Result shows that rice has the biggest expenditure proportion among staple food. Almost all staple food is obtained by purchasing, except in corn, cassava, and sweet potatoes. Energy contribution from rice reaches half of total energy consumption. The consumption of rice, corn, cassava, sweet potatoes, wheat flour and its derived product, instant noodle, and wheat noodle per capita per year are 100.52 kg, 3.36 kg, 11.67 kg, 4.10 kg, 5.09 kg, 3.39 kg, and 0.22 kg. Staple food which has consumption participation level almost 100% is rice. The own price elasticity of staple foods are not elastic, except in corn, wheat flour and its derived product. The income elasticity of all staple foods is not elastic in all category of region and income stratification. The demand elasticity of staple food give some implications on consumption and food consumption improvement, they are: 1) raising price of staple food can decrease consumption, thus, price stability is very important, 2) almost all staple foods has not elastic income elasticity, so that food consumption improvement needs great stimulus of increasing income, 3) poor household is greatly influenced by the increasing of price, thus, food consumption improvement for them must be conducted by doing many relevant efforts, 4) target of decreasing rice consumption is still cannot be reached, so that staple food diversification must be continuously developed, 5) in order to develop local food consumption, like corn, cassava, and sweet potato, the development of agro industry based on local food and Communication Information Education (CIE) about food consumption diversification are essential to be conducted.</span></p>


Agrotek ◽  
2018 ◽  
Vol 2 (6) ◽  
Author(s):  
Opalina Logo ◽  
Antonius Suparno ◽  
Saraswati Prabawardani

<em>Sweet potato serves as main staple food for people in Jayawijaya. Many cultivars of sweet potatoes have been cultivated by Dani tribe in Kurulu as source food for their infant, children and adult as well as for animal feed especially pigs.The research was conducted at Woisila and Woisilo, Dany tribe Kurulu District, Jayawijaya. The aim of the research was to study the diversity of sweet potatoes tuber that cultivated by Dani tribe at Kurulu Districk as source of food for their infant and children. �Ten cultivars of sweet potatoes tuber consumted by infant and children of Dany tribe was morphologically characterized. The result showed that nine of ten cultivars produced tubers. �The research also categorizes different character of tubers. These characters are: four different tuber shapes, four groups of tuber cortex thickness, three groups of predominant tuber skin colour, five groups of secundary tuber skin colour, five groups of predominant tuber flesh colour of tuber, three groups of secundary tuber flesh colour, four types of secondary tuber flesh colour distribution, four types of tuber formation, two groups of tuber stalk, five groups of tuber �number per plant, �and �three cultivars with tuber craking.</em>


2020 ◽  
pp. 18-20
Author(s):  
Т.Э. Остонакулов ◽  
А.А. Шамсиев

В 2017–2019 годах изучены сортообразцы сладкого картофеля на староорошаемых лугово-сероземных почвах Зарафшанской долины. Цель исследований – комплексная оценка сортообразцов батата в условиях Зарафшанской долины по скороспелости, росту, развитию, интенсивному размножению, формированию урожая, компактности клубней в гнезде, продуктивности, урожайности и лежкости клубней и выделение из них перспективных, а также разработка приемов агротехнологии получения высоких урожаев для данных условий. Почвы опытного участка характеризуются благоприятными агрофизическими и водными свойствами и низким содержанием гумуса, нитратного азота, подвижного фосфора и содержанием обменного калия от низкого до среднего. Сравнивали 18 сортообразцов батата. Выделенные сортообразцы изучали при ширине междурядий 70 и 90 см со схемой 70×25 и 90×20 см по 1, 2 и 3 растения в гнезде. Для получения рассады сортообразцов батата брали по 40 клубней и высаживали 20–22 февраля в пленочной теплице при температуре 15–18 °C, заделывая их на глубину 3–5 см. Влажность почвы поддерживали на уровне 65–70%. Через 7–10 дней после высадки почки начинают прорастать, а через 43–48 дней формируется рассада высотой 12–15 см, готовая для высадки в поле. Высадка рассады, как и других рассадных культур (томата, перца, баклажана) – по схеме 70×20–25 см во второй-третьей декаде апреля. Уход включал в себя междурядную обработку (культивация), прополку, борьбу с сорняками, подкормку, поливы. Уборка урожая – в конце сентября-начале октября с помощью картофелекопателя. В результате исследований выделились сорта по скороспелости, дружности формирования ростков, ускоренному размножению, продуктивности, компактности клубней в гнезде и с высоким товарным урожаем – Сочакинур, Хар-Бей и Япон. Возделывание этих сортообразцов по схеме 70×25 и 90×20 см способствует получению товарного урожая высокого качества не менее 43–48 т/га. In 2017–2019, studies were conducted on the study of varieties of sweet potatoes on old-irrigated meadow-gray-earth soils of the Zarafshan valley. The purpose of the research is a comprehensive assessment of sweet potato varieties in the conditions of the Zarafshan valley in terms of early maturity, growth, development, intensive reproduction, yield formation, compactness of tubers in the nest, productivity, yield and keeping quality of tubers and the selection of promising ones, as well as the development of methods of agricultural technology for obtaining high yields for given conditions. The soil is characterized by favorable agrophysical and water properties and low content of humus, nitrate nitrogen, mobile phosphorus and a low-average content of exchange potassium. Eighteen sweet potato varieties were compared. The selected variety samples were studied with a row spacing of 70 and 90 cm with a scheme of 70×25 and 90×20 cm for 1, 2 and 3 seedlings in the nest. To obtain seedlings of sweet potato varieties, 40 tubers were taken and planted on February 20–22 in a film greenhouse at a temperature of 15–18 °C, seeding to a depth of 3–5 cm, the soil moisture was maintained at 65–70%. 7–10 days after planting, the buds began to germinate, and after 43–48 days, seedlings were formed with a height of 12–15 cm, which is ready for planting in the field. Planting seedlings in the field is carried out, as well as other seedlings (tomato, pepper, eggplant) according to the scheme 70x20–25 cm in the second or third decade of April. Growing includes inter-row processing (cultivation), weeding, weed control, top dressing, watering. Harvesting in late September, early October with a potato digger. As a result of the research, varieties were identified in terms of early maturity, sprout formation, accelerated reproduction, productivity, compactness of tubers in the nest and ensuring a high marketable yield – Sochakinur, Xar-Bey, and Japon. The cultivation of these varieties according to the scheme 70×25 and 90×20 cm contributes to the production of a commodity crop at 43–48 t/ha with good qualities.


Agrotek ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Andrew B. Pattikawa ◽  
Antonius Suparno ◽  
Saraswati Prabawardani

<em>Sweet potato is an important staple food crop especially for the local people of Central Highlands Jayawijaya. There are many accessions that have always been maintained its existence to enrich their various uses. Traditionally, sweet potato accessions were grouped based on the utilization, such as for animal feed, cultural ceremonies, consumption for adults, as well as for infants and children. This study was aimed to analyze the nutritional value of sweet potatoes consumed by infants and children of the Dani tribe. Chemical analyses were conducted at the Laboratory of Post-Harvest Research and Development Center, Cimanggu, Bogor. The results showed that each of 4 (four) sweet potato accessions which were consumed by infants and children had good nutrient levels. Accession Sabe showed the highest water content (72.56%), vitamin C (72.71 mg/100 g), Fe (11.85 mg/100 g), and K levels (130.41 mg / 100 grams). The highest levels of protein (1.44%), fat (1.00%), energy (154.43 kkal/100 gram), carbohydrate (35.47%), starch (30.26%), reducing sugar (3.44%), riboflavin (0.18 mg/100 g), and vitamin A (574.40 grams IU/100 were produced by accession Manis. On the other hand, accession Saborok produced the highest value for ash content (1.32%), vitamin E (28.30 mg/100 g), and ?-carotene (64.69 ppm). The highest level of crude fiber (1.81 %) and thiamin (0.36 mg/100 g) was produced by accession Yuaiken.</em>


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Shugang Zhao ◽  
Hongxia Wang ◽  
Kai Liu ◽  
Linqing Li ◽  
Jinbing Yang ◽  
...  

Abstract Background Tissue culture is an effective method for the rapid breeding of seedlings and improving production efficiency, but explant browning is a key limiting factor of walnut tissue culture. Specifically, the polymerization of PPO-derived quinones that cause explant browning of walnut is not well understood. This study investigated explants of ‘Zanmei’ walnut shoot apices cultured in agar (A) or vermiculite (V) media, and the survival percentage, changes in phenolic content, POD and PPO activity, and JrPPO expression in explants were studied to determine the role of PPO in the browning of walnut explants. Results The results showed that the V media greatly reduced the death rate of explants, and 89.9 and 38.7% of the explants cultured in V media and A media survived, respectively. Compared with that of explants at 0 h, the PPO of explants cultured in A was highly active throughout the culture, but activity in those cultured in V remained low. The phenolic level of explants cultured in A increased significantly at 72 h but subsequently declined, and the content in the explants cultured in V increased to a high level only at 144 h. The POD in explants cultured in V showed high activity that did not cause browning. Gene expression assays showed that the expression of JrPPO1 was downregulated in explants cultured in both A and V. However, the expression of JrPPO2 was upregulated in explants cultured in A throughout the culture and upregulated in V at 144 h. JrPPO expression analyses in different tissues showed that JrPPO1 was highly expressed in stems, young leaves, mature leaves, catkins, pistils, and hulls, and JrPPO2 was highly expressed in mature leaves and pistils. Moreover, browning assays showed that both explants in A and leaf tissue exhibited high JrPPO2 activity. Conclusion The rapid increase in phenolic content caused the browning and death of explants. V media delayed the rapid accumulation of phenolic compounds in walnut explants in the short term, which significantly decreased explants mortality. The results suggest that JrPPO2 plays a key role in the oxidation of phenols in explants after branch injury.


2021 ◽  
Vol 5 (3) ◽  
pp. 840-851
Author(s):  
Nurul Azhar ◽  
◽  
Roni Kastaman ◽  
Anas Bunyamin

The agricultural, forestry, and fisheries sectors and also the processing industry sectors in Sumedang Regency contributed the highest GDRP value in 2014-2018, so that Sumedang Regency has a potential in agro-industrial sector. This research aims to determined the priority of superior agro-industrial products and public assessment of superior agro-industrial products that have been determined in Sumedang Regency. This research used the Comparison of Exponential Method (MPE) and ANOVA analysis. The data analysis tools were Microsoft Excel and IBM SPSS Statistics 24 Software. The results of the MPE analysis showed that the priority of superior agro-industrial products in Sumedang Regency were ground coffee, roasted coffee, Cilembu roasted sweet potatoes, Cilembu sweet potato chips, red bako mole, opak ketan, white bako mole, Sumedang tofu, tempeh chips, and oncom Pasireungit. ANOVA analysis showed that there were differences of the superior agro-industrial products rank, that is Sumedang tofu, Cilembu roasted sweet potato, oncom Pasireungit, white bako mole, Cilembu sweet potato chips, tempeh chips, roasted coffee, ground coffee, red bako mole, and opak ketan.


2017 ◽  
Vol 7 (1) ◽  
pp. 146
Author(s):  
William Faustine Epeju ◽  
Peter Milton Rukundo

Two relevant studies on food security are referred to in the article. Food insecurity from time to time threatens in Teso sub region which houses a viable Teso agricultural system. One study was done during 2001-2003 in Teso on sweet potato production with 650 persons participating and the second one was done in one disaster affected area of Bududa District nearby during 2012-2016 when 1,142 persons participated. Kiryandongo District where Bududa landslide survivors were resettled in Uganda was included in that study. Participatory methods such as focus group discussions, farm observations, in-depth interviews, and questionnaires were used. Both studies used qualitative and quantitative methods for data analysis. The sweet potato stands second after cassava as the crop for famine and disaster periods in Teso to meet the human right to adequate food to complement the well dried cereals & grain legumes that stored longer. Livestock especially was also one of the prime determinants of food security and income in Teso. Free from cyanides with a good content of affordable Vitamin A from orange fleshed varieties, sweet potatoes in Teso contributed about 61% to the yearly food per capita of the population thus a recommendable crop for sustainable food security and some income in Teso and beyond. 


Hoehnea ◽  
2017 ◽  
Vol 44 (2) ◽  
pp. 236-245 ◽  
Author(s):  
Juliana Moreno Pina ◽  
Sérgio Tadeu Meirelles ◽  
Regina Maria de Moraes

ABSTRACT This study aimed to investigate the importance of leaf age, meteorological conditions and ozone concentration (O3) on gas exchange of Psidium guajava ‛Paluma'. Saplings were grown and exposed in standard conditions in the city of São Paulo, in six periods of three months with weekly measurements in young and mature leaves. Gas exchanges were higher in young leaves for almost the entire experiment. Mature leaves showed greater reduction in gas exchange. The multivariate analysis of biotic and abiotic variables indicated that vapor pressure deficit (VPD), O3 concentration and radiation were the main variables associated with gas exchange decrease in young leaves. In mature leaves the influence of VPD is lower, but the temperature importance is higher. Moreover, the opposition between assimilation and O3 is more evident in mature leaves, indicating their greater sensitivity to O3.


2016 ◽  
Vol 12 (2) ◽  
pp. 111
Author(s):  
Demas Wamaerand ◽  
Kuntoro Boga Andri

This study aims to: (1) mapping the distribution pattern of the application of agricultural technology innovation specific locations, (2) determine the critical success factors  distribution  application  of  agricultural  technology  innovation  specific locations,  (3)  improvement  of  distribution  patterns  and  acceleration  of  the  adoption and diffusion of technological innovations to support agribusiness and agroindustrial rice, sweet potatoes and  soybeans in Papua. The research activities carried out during March  2011  to  February  2014  using  three  approaches  (methods),  namely  (1)  Desk Study  on  the  SL-  PTT  rice,  soybean  and  sweet  potato  (2)  surveys  to  obtain quantitative  data in  three  districts  purposively  selected  with  10-  20  respondents, (3) the application pattern of diffusion through the demonstration of quality seeds of rice, corn  and  soybeans  in  the  BPP  or  a  farmer  seed  sources  in  three  selected  districts.Agronomic  data  were tabulated  and  analyzed  descriptively.  Analysis  of  the level  of efficiency  in  the  application  of  technology  used  indicator  plots  the  balance  receiptsand  fees  or  analysis  of  R  /  C  ratio.  To  measure  the  success  of  the  application  of technological  innovations  in  the  plots  need  to  set  performance  indicators,  covering aspects of the use of inputs, processes, outputs, outcomes, benefits and impacts. The results show that the dissemination of technological innovations for the development of location-specific agricultural commodities  of rice, corn, soybean and sweet potato, has  spread  in  most  regions  crop  farming  development  centers  in  Papua.  But  only concentrated  around  the  transmigration  settlement  area.  New  varieties  of  soybean plants  yielding  seeds  and  rice  showed  better  productivity  than  the  old  varieties  that have  been  repeatedly  planted  by  farmers.  Yielding  varieties  of  maize  is  being introduced less developed because it is still constrained by marketing, if the market is readily available, farmers are willing to develop it.


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