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Academic literature on the topic 'Cassava varieties'
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Journal articles on the topic "Cassava varieties"
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Indrastuti, Erning, Teti Estiasih, Elok Zubaidah, and Harijono. "Physicochemical Characteristics and In Vitro Starch Digestibility of Spontaneously Combined Submerged and Solid State Fermented Cassava (Manihot esculenta Crantz) Flour." Current Nutrition & Food Science 15, no. 7 (2019): 725–34. http://dx.doi.org/10.2174/1573401314666180515112908.
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Background: High cyanide varieties of cassava must be detoxified before consumption. Several studies showed detoxification of cassava by slicing, submerged fermentation (soaking), solid state fermentation, and drying. One of traditional detoxification is combination of submerged and solid state fermentation and the effect of this processing on cyanide reduction and food properties has not been evaluation yet. Objective: This research studied the effect of solid state fermentation time on physicochemical, starch granule morphology, and in vitro starch digestibility of cassava flour from high cyanide varieties of Malang 4, Malang 6, and Sembung. Methods: Three varieties of high cyanide grated cassavas were soaked for 3 days in ratio of water to cassava 1:1. After draining for 1 hour, grated cassava was placed in a bamboo container and put in a humid place for 3-day solid state fermentation. Fermented grated cassavas were then dried, milled, and analyzed. Results: Solid state fermentation similarly affected cyanide reduction and characteristics of cassava flour for three high cyanide varieties. The detoxification process reduced cyanide to 89.70-93.42% and produced flour with a total cyanide of 8.25-10.89 mg HCN eq/kg dry matters, which is safe to consume. Fermentation decreased cyanide, starch content, titratable acidity, swelling power, and solubility; meanwhile pH, amylose content, water absorption, oil absorption, and in vitro starch digestibility increased in all three varieties studied. Submerged fermentation reduced the pH thus inhibiting the degradation of linamarin and cyanohydrin into free HCN. pH value was increased by solid state fermentation, from 4.43 to 6.90 that optimum for linamarin and cyanohydrin degradation into free HCN. The submerged and solid-state fermentation indeuce spontaneous microbial growth that affected chemical composition of cassava flour. The changes of structure and morphology of starch granules affected pasting properties, and Increased in vitro starch digestibility due to damaged granules. Conclusion: Solid-state fermentation reduced cyanide content of all three cassava varieties into the safe level for consumption, and aiso changed chemical, physical, and functional characteristics and starch digestibility of cassava flour.
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Laka, Martinus, and Emilia S. A. Wangge. "UJI KANDUNGAN PROTEIN PADA BEBERAPA VARIETAS UMBI UBI KAYU ( Manihot esculenta Crantz) YANG DIHASILKAN DI DESA RANDOTONDA, KECAMATAN ENDE, KABUPATEN ENDE." AGRICA 11, no. 1 (2020): 43–50. http://dx.doi.org/10.37478/agr.v11i1.21.
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This study aims to determine the protein content found in all three cassava varieties. The cassava varieties produced in Randotonda Village, namely the cassava variety, the variety of cassava Ai land, and the flour cassava varieties. Test the protein content of several cassava varieties with varied harvest ages using the Kjedhal method. Cassava varieties of Tanah ai varieties with an harvest age of 8 months, cassava tubers, 10 months old verietas, and cassava flour 12 months old.The results showed that the three types of fresh cassava tubers of White variety were 1.59%, Tanah Ai cassava varieties were 1.48% and Wheatwood sweet potato varieties were 1.18%. This is because the White yam variety is 8 months old, while the 10-month AI variety and the Wheat variety are 12 months (1Year).
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Kusmaria, Kusmaria, Ratna Winandi Asmarantaka, and Harianto Harianto. "ANALISIS PENENTUAN RAFAKSI DAN PENGARUHNYA TERHADAP PILIHAN SALURAN PEMASARAN PETANI UBI KAYU DI KABUPATEN LAMPUNG TENGAH." Forum Agribisnis 6, no. 2 (2017): 129–44. http://dx.doi.org/10.29244/fagb.6.2.129-144.
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Cassava becomes an important commodity in Indonesia because Indonesia is one of the major producer of cassava in the world. Besides exporting cassava, in fact Indonesia also imported cassava in large quantities. Altough the price of cassava was increasing in Lampung but the production and harvested area were decreasing, moreover factory and trader also set rafaksi on cassavas sold by farmers. Rafaksi is a penalties quantity to assess the quality of cassava farmers. Cassava marketing channels play role in determining the price and rafaksi that received by farmers. The aims of this research are (1) to analyze mechanism of determining rafaksi (2) to analyze price received by farmers’ after obtained rafaksi (3) analyze influence rafaksi to choice of marketing channels cassava farmers in Central Lampung Regency. Primary data were collected rendomly from 74 respondents. Data were analyzed by describe, correlation and binary logistic regression. The results showed that in the perception of farmers, determination of cassava rafaksi determined by several criteria such as the age of harvest, varieties, aci levels and the amount of dirt but not obtained a measure to ensure that criteria and only use the visual observation. The results of correlation analysis showed that there was no statistically significant connection between harvest time and the varieties of cassava with rafaksi of cassava which received by farmers. The result of binary logistic regression analysis showed that rafaksi loan significantly affected the choice of marketing channels.
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Abaca, Alex, Emmanuel Odama, Alfred Komakech, Baron Asiku, Andema A. Andrews, and Sadik Kassim. "Evaluation of Newly Released Cassava Varieties for Yield Performance, Reactions to Cassava Diseases and Farmers’ Preference in Adjumani District of Uganda." Journal of Agricultural Science 13, no. 4 (2021): 84. http://dx.doi.org/10.5539/jas.v13n4p84.
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Cassava viral diseases particularly cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) have put pressure on cassava breeders to develop varieties that are resistant/tolerant to them. Several cassava varieties have been rolled out to farmers with the latest being NAROCASS series that are tolerant to these diseases. The yield performance of these new varieties have not been documented in some sub zones like Adjumani district that falls within a major West Nile agro-ecology of Uganda. Therefore this study sought to established yield performances of, reactions to major diseases, and farmers’ preference to these newly released cassava varieties in Adjumani. Results showed significant (P ≤ 0.05) differences among cassava varieties and experimental sites for all the parameters evaluated. Average yield performance by varieties were in the order of a local cassava—Alifasia (8.7 t/Ha) lowest, NAROCASS 2 (18.55 t/Ha), NASE 14 (33.97 t/Ha), NASE 19 (41.26 t/Ha), and NAROCASS 1 (41.71 t/Ha) highest. CMD foliar symptom was present at all sites on a local cassava—Alifasia, and on NAROCASS 1 in Ayiri parish, Ukusijoni sub-county. CBSD foliar symptoms were observed on off-types (TME 14) in the plot of NASE 14 in Miniki Parish only whereas CBSD root necrosis was observed at all sites on the local cassava—Alifasia, and on NASE 19 in Maaji parish, Ukusijoni sub-county. Cassava root rot disease was localised in Ukusijoni sub-county only. Farmers’ preferences to these newly released cassava varieties were in the order of NASE 19 (40.96%), NAROCASS 1 (24.86%), NAROCASS 2 (15.82.28%), NASE 14 (15.54%), and a Local cassava—Alifasia (2.83%). Result from this study strengthens the information gap in the breeding process towards developing a cassava variety with farmer-preferred attributes, and can also inform the utilisation of these improved cassava varieties in Adjumani district.
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Amarullah. "Evaluation of quality and variety of Indonesian cassava (Manihot esculenta Crantz)." International Journal of Agricultural Research, Innovation and Technology 10, no. 1 (2020): 108–16. http://dx.doi.org/10.3329/ijarit.v10i1.48102.
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The evaluating cassava varieties for productivity necessary to assess the cassava stem characteristics for their suitability as planting material and to improve the capability of cassava farmers to select good quality cassava varieties. Cassava varieties are generally distinguished from each other by their morphological characteristics, which include leaf, stem and tuber colour. The cassava planting material used in this study and some of characteristics by five cassava varieties, consisted of mature stem cuttings of about 20 cm in length, containing between 10 and 12 nodes and planted in a vertical position along the top of the ridges. Each plot consisted of 30 plants, with date being taken from ten plants within each plot. Cassava varieties Malang-6 presented the highest yield average is 13.81 tones ha-1 followed by Singgah and Adira-4 i.e. 11.98 t ha-1 and 11.11 t ha-1 of different varieties 1 yang Ketan, which only weighs 6.63 t ha-1. Harvest index varieties of Adira-4, Malang-6, UJ 5 and Singgah were found 0.78, 0.77, 0.77 and 0.76, respectively higher and significantly different IP varieties of glutinous Ketan is 0.58. Malang varieties and Malang-6 that produces the highest tuber weight, has a low dry matter content is 5.65% and 5.62%. The Ketan varieties and UJ-5 has a tuber weight was significantly lower with dry matter content higher than that dried 8.69% and 8.68%. The UJ-5 varieties has a tuber weight starch HCN 230,17 higher and significantly other variety.
 Int. J. Agril. Res. Innov. Tech. 10(1): 108-116, June 2020
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Onyeneke, Robert Ugochukwu, Chukwuemeka Chinonso Emenekwe, Jane Onuabuchi Munonye, et al. "Adoption of Bio-fortified Pro-Vitamin-A Cassava and Health Outcome of Farming Households in Abia and Anambra States Nigeria." Journal of Agricultural Extension 24, no. 2 (2020): 81–91. http://dx.doi.org/10.4314/jae.v24i2.9.
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This study examined the relationship between the adoption of bio-fortified provitamin- A cassava varieties and farming households’ health outcomes using cross sectional data obtained from 318 cassava farmers in southeast Nigeria. The data was analysed using binary logistic regression, propensity score matching of treatment effects and percentages. The study found that number of children under five, household size, education of head of household, extension service, ownership of television, radio, mobile phone and tricycle, membership of cooperative societies, and access to credit were the significant predictors of adoption of pro-vitamin-A bio-fortified cassava varieties in the States. The study also found that the main constraints militating against adoption of pro-vitamin-A bio-fortified cassava include decaying of roots immediately after maturation,high cost of cassava stem, and high moisture content. The estimate of the effect of the adoption of bio-fortified pro-vitamin-A cassava varieties onincidence of vitamin-A deficiency related diseases was significant with an average treatment effect on the adopters of -0.463. The adoption of bio- fortified pro-vitamin-A cassava varieties has substantial effect on the reduction of vitamin-A deficiency related health outcomes. There is need for wider awareness and dissemination of the varieties among cassava farmers, while interventions should target the promotion of both production and consumption of such cassava varieties.
 Key words: adoption of bio-fortified cassava varieties; vitamin A deficiency related diseases
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Shanti, Ratna, and Ratna Nirmala. "Aplikasi Pupuk NPK Dan Bokashi Serta Interaksinya Terhadap Pertumbuhan Dan Produksi Tiga Varietas Ubi Kayu (Manihot escculenta. L) Di Kutai Timur." Agrifarm : Jurnal Ilmu Pertanian 6, no. 1 (2017): 1. http://dx.doi.org/10.24903/ajip.v6i1.1.
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The purpose of this study to determine the effect of fertilization on the production of three varieties of cassava that is Darul Hidayah, Gajah and Varietas Local. The field experiment was conducted for 9 months starting from April to December 2016. Locations trial in Sangata Selatan, DistrictKutai Timur.The design is split plot design arranged in a factorial treatment was repeated 3 times (R) Treatment Varieties (V) as the main plots and fertilizer treatments (P) as subplot. The results showed that the inorganik fertilizer (NPK), organik (Bokashi) and combinations thereof capable of producing tubers each, 124 tons per hectares, 130.44 tons per hectares, and 134.67 tons per hectares and 99.11 ton per hectares as a kontrol s. Fertilization treatment of three varieties cassava tubers can increase production 20%. 23.8% and 26% respectively as a compared with kontrol s. While the tuber production between varieties Darul Hidayah and Gajah 148.50 tons perhectares and 132, 33 ton per hectares while the local variety 85.33 tons per hectares. The increase in the tubers from 3 varieties namely 42.5% and 35.6% compared to local varieties. Keywords: anorganik and organik fertilizers, varieties of cassava
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Laya, Alphonse, Benoît Bargui Koubala, Habiba Kouninki, and Elias Nchiwan Nukenine. "Effect of Harvest Period on the Proximate Composition and Functional and Sensory Properties of Gari Produced from Local and Improved Cassava (Manihot esculenta) Varieties." International Journal of Food Science 2018 (2018): 1–15. http://dx.doi.org/10.1155/2018/6241035.
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This study is aimed at evaluating the proximate composition and functional and sensory characteristics of gari obtained from five cassava varieties (EN, AD, TMS92/0326, TMS96/1414, and IRAD4115). These cassavas were harvested during the dry season 12 months after planting (12MAP) and in the rainy season (15MAP). Results showed that the characteristics of gari varied significantly (p<0.05) with the variety and the harvest period. Gari from EN cassava harvested at 12MAP had the highest total carbohydrates (78.07% dry weight), starch (61%), and proteins content, while gari from TMS 96/1414 variety (12MAP) had high amino acids (10.25 mg/g) and phenolic compounds (9.31 mg/g) content. The gari from IRAD4115 had the highest value of ash content (20.62 mg/g) at 12MAP. The soluble sugar content was high in the gari from cassava harvested at 12MAP while free cyanide reduced significantly in gari from cassava harvested at 12MAP. The water absorption capacity, swelling power, and bulk density were significantly (p<0.05) high in the gari from EN cassava variety at 12MAP. Compared to commercial gari (3.30), gari from EN local cassava had the best overall acceptability (4.35) followed by those obtained from TMS92/0326 and TMS92/1414 varieties, respectively.
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MUTHURAJA, Raji, and Thangavelu MUTHUKUMAR. "Arbuscular Mycorrhizal and Dark Septate Endophyte Fungal Association in Cassava (Manihot esculenta Crantz) Varieties, Southern India." Notulae Scientia Biologicae 11, no. 1 (2019): 154–66. http://dx.doi.org/10.15835/nsb11110397.
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The study examined the root characteristics, type of arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal associations and their extent of colonization in 13 widely cultivated cassava (Manihot esculenta Crantz) varieties in southern India. Root and associated soil samples of each cassava variety were collected from Salem and Kolli Hills of the Eastern Ghats in south India. In addition, we also investigated the relationship between the extent of colonization of AM, DSE fungal and AM fungal spore communities and soil characteristics for each cassava variety. Roots of all the cassava varieties were colonized by AM fungi and 12 varieties had co-colonization of DSE fungi. The AM morphology in all the cassava varieties was of an intermediate type with intercellular and intracellular linear hyphae and arbusculate coils. In addition, we found high AM colonization rates (73-89%) but only moderate rates by DSE (22-68%) fungi. We also found 17 AM fungal spore morphotypes and their abundance varied significantly among cassava varieties. In addition, different physicochemical properties of soils may possibly increase AMF diversity, while different varieties of cassava are commonly associated with differing levels of AM and DSE fungi colonization with soil factors potentially influencing the symbiosis.
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Devy, Nirmala F., Abd Aziz Syarif, and Aryawaita Aryawaita. "Identification of Morphology and Quality Character Determinant of Local Cassava [Manihot esculenta Crantz] Germplasm from West Sumatra." Buletin Plasma Nutfah 24, no. 1 (2018): 53. http://dx.doi.org/10.21082/blpn.v24n1.2018.p53-62.
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<p>Local germplasm of Cassava (Manihot esculenta Crantz) have an economic potential important for West Sumatra community. The local cassava has high morphological diversity. To distinguish different type of cassava, identification of morphology and tuber quality were required. The objective of this research was to identify morphology and tuber quality determinant characters of West Sumatra local Cassava. An analysis was performed on ten local cassava originated from four districts of West Sumatra and three other released varieties. Morphological characterization was performed based on International<br />Institute of Tropical Agriculture (IITA) standard descriptors, whereas physical and chemical analyses were carried out in the Agricultural Product Technology Laboratory at University of Andalas, Padang. The research was conducted at Sukarami Experimental Station, Solok Regency in March 2015–February 2016. Morphological characters and data quality were first analyzed by principal component analysis (PCA). The PCA analysis resulted 4 major component axes contributing to a total diversity of 78, 83, and 81.3% on plant morphology, tuber quality, and morphology and tuber color, respectively. Based on those<br />diversities, the thirteen varieties of cassava could be grouped into six clusters. Special characters that distinguishing between groups was the number of lobes, leaf stem length, shoot color, and leaf width. Meanwhile, based on its chemical content and morphology of tubers, the cassavas were grouped into five clusters, with the distinguishing characters were carbohydrate content, protein content, and tuber color. The varieties that have the highest weight of the tuber/plant were Kuning and Roti 2, with a production of 203–380% higher than the released varieties. On their tubers, varieties that had the lowest levels of HCN were Tangkai Merah-1, Dumai, and Roti 2, whereas those with starch content &gt;35% were Sanjai Padang Jariang, Jurai Merah, Kuning, Roti 2, and Hijau Pesisir Selatan. Each variety has its own specific morphological characters, tuber morphology, and chemical composition.</p>