Asian development potato research sweetpotato-Roots, tubers, plantains and bananas in animal feeding

Widely thought as the 'second bread' in many countries worldwide, it is also one of the highest research priority commodities for the Consultative Group on International Agricultural Research CGIAR. Evaluation trials were conducted under in-vitro laboratories and in open field in highland and lowland conditions in Uzbekistan and Tajikistan. Evaluation trials in Uzbekistan were carried in Pskem highland and Zangi-ota near Tashkent lowland. Following the field trials, on October 12, , the Institute also organized a cooking quality contest of the potato clones from highland of Pskem. Rusudan Mdivani.

Asian development potato research sweetpotato

Asian development potato research sweetpotato

The experimental design in this phase was completely randomized, consisting of 30 genotypes of sweet potato plants, totaling 30 treatments, with two replicates. Teixeira, D. Technical collective of Irigation. Effects of thermo Ipomoea batata under controlled conditions. Following the field trials, on October 12,the Institute Asian development potato research sweetpotato organized a cooking quality contest of the potato clones from highland Angelina pic pregnancy Pskem. Another factor is the change in the eating habits of populations brought about by the emergence of Asian development potato research sweetpotato consumption options. The distance between plants in any crop is a factor which can affect Spicy sluts, however, in the case of sweet potato no significant responses have been obtained with the different distances studied. Manual control alone is used only for small areas. Sweet potato in China.

Account adult merchant online high risk. Services on Demand

Konjing, M. G; and Turken- steen, L. Work to date has enhanced nutritional outcomes and, in responding to consumer demand, has generated income opportunities by linking small-scale growers to commercial processors, such as bakeries. Recent program achievements. Woolfe, J. Download preview PDF. Guide for personal computers. FoodPrize19 worldfoodprize. Siregar, S. Scott Asian development potato research sweetpotato 1. Value chains : business training, improved product processing, enhanced market linkages 6. How to create a successful postharvest center in 5 key steps Feed the Future Innovation Lab for Horticulture, 3 October Domingo, M. In developing countries, the effects of hunger and malnutrition on the rural poor can be devastating.

The sweet potato Ipomoea batata L.

  • FoodPrize19 worldfoodprize.
  • Sustainable strategies for reducing poverty.
  • American Journal of Potato Research.
  • The International Potato Center CIP responds to twenty-first century agricultural development challenges by organizing its work into three programs: Biodiversity for the future, and potato and sweetpotato agri-food systems.

The sweet potato Ipomoea batata L. It can be cultivated in many different climatic conditions, and as a result large areas of sweet potato are cultivated in Asia, Africa, Europe, America and Oceania Table 2. The various ways in which it can be used are shown in Table 1.

Sweet potato is a short day plant, that needs light for maximum development. However, the growth of the tubers appears not to be influenced by photoperiod alone. It is probable that temperature and fluctuations in temperature, together with short days favour the growth of tubers and limit the growth of foliage Youg, In tropical regions it is possible to cultivate sweet potato from sea level to m; for example in Bolivia, Peru and Colombia it is cultivated from sea level to m.

Del Carpio, Moisture has a decisive influence on sweet potato growth and production. At planting it is important to have moist soils in order to achieve good germination. The soil must also be kept moist during the growth period 60— days , though at harvesting the humidity must be low in order to prevent the tubers rotting Carballo, The chemical properties of the soil are less limiting than structural properties in obtaining good yields.

Other problems include the difficulty of using machinery on hilly land and drainage on flat land. The sweet potato also prefers lightly acid or neutral soils, with the optimum PH being between 5. Soils which are excessively acid or alkaline often encourage bacterial infections and negatively influence yields Cairo, Generally the growth cycle of the sweet potato is from 3. Normally the cycle is completed within to days at which time the plant can be harvested.

Sweet potatoes are multiplied by both sexual and asexual means, though the former is only of interest to geneticists and plant breeders. The material to be used must be selected to avoid the transportation of eggs or larvae of Cylas formicarius elegantus S. The seed bank must not be planted in a field that has been used for sweet potato during the previous two years. The seed stem must be Cylas formicarius elegantus Summers and virus free and less than 0. Table 3 demonstrates the yields of 6 of the best varieties, grown in three different soil types and harvested at different times.

Two of these varieties have only recently been produced. In Cuba sweet potato can be planted all the year round if you have irrigation and appropriate varieties. Where the soils are sandy or clay and irrigation is not available it is advisable to plant at the beginning of the spring, April to May though good yields can usually be obtained from July to January.

As indicated, time of planting depends upon the variety used; for example, the variety Cuba 3 gives better yields when planted during the dry season, with irrigation, than when it is planted during the rainy season with the same soil moisture content.

Other varieties, like Haiti, give the same yields either when planted during the dry season with irrigation or during the rainy season with or without irrigation. The yield of this variety depends upon the soil moisture content which is the principal factor limiting the growth and development of tubers, and is independent of the time of planting.

The distance between plants in any crop is a factor which can affect yields, however, in the case of sweet potato no significant responses have been obtained with the different distances studied. In experimental work carried out at the Central University of Las Villas with different distances between plants and location of stems, i.

In Cuba planting is generally done by hand, putting the stem on the hill or in the furrow and covering it with earth using a spade.

Cultivation activities depend on a series of factors including: variety, time of planting, type of soil, planting distance, etc. The objective should be to carry out as many operations as necessary to optimise vegetative development of the plants Rodriguez Nodal and Morales Tejon, Manual control alone is used only for small areas.

Mechanical—manual control consists of a combination of between row and between plant cultivations, as follows:. Mechanical cultivation using an inter row harrow and a manual cultivation between plants within 10 to 15 days of planting. Hilling up around plants, 25 to 30 days after planting with the aim of reconstructing the hill to eliminate weeds and the incorporate fertilizers. There are many products on the market which can be used and their use will depend upon the chemical to be used.

Due to the sweet potato's great yield potential foliage and tubers it requires a considerable amount of fertilization; this varies according to variety and soil type. At 30 days after planting. The fertilizer is continuously spread along the the length of one side of the hill, following which it is covered using a double mould—board plough passed down the centre of the furrow.

At 20 or 30 days before planting in sandy soils. After spreading the fertilizer it is incorporated using a harrow. The ratio and amount of fertilizer to be used in sweet potato production has been established in different countries. Examples are shown in Table 4. Overall the sweet potato plant requires soils with a high moisture content. For vegetative growth its needs are moderate, though during the first month of growth when the tubers are developing the moisture requirement increases.

During the final days of the cycle the moisture requirement reduces. Furrow and sprinkler irrigation techniques can be used. It is best to carry out one irrigation before planting if the soil is not moist. This should be stopped about 15 days before harvest INRA, The sweet potato plant is not seriously affected by fungus diseases or virus attacks.

Though it can suffer from insect attack. Tetuan Cylas formicarius elegantulus S. The female lays its eggs in stems and roots and the larvae make galleries in the tubers which affects flavour Dias Sanchez, This is achieved by distributing its colonies or nests around the fields at a rate of 13 per ha. Distribution of the fungus Blauberia bassiana Bal.

Nematodes in general do not constitute a serious problem. The principal species are Rotylenchulus remiformis Lenford and Oliveira. Overall, biological control, complimented by agronomic practices such as crop rotation is the best way to achieve success in sweet potato cultivation. The time of harvest largely depends upon the variety and soil moisture content during the first month of plant development. However the actual commercial varieties used take different times to harvest, for example:.

The growth cycle of any variety can be altered by an excess of moisture in the first 3 months after planting. This produces an intense foliar development and a late formation of tubers. Often in these cases the number of tubers are reduced. The manual method is the simplest. It is usually used by the small scale producers and involves the use of a digging stick to lever the tubers out of the ground.

The elimination of foliage must be carried out 24 hours before harvesting. After the foliage is removed a double mould board plough is passed down the centre of the hill leaving a ridge in between the original two and ensuring that the soil does not cover part of the adjacent ridges. The tubers exposed after the first pass are picked up by hand and removed prior to making a second pass.

Tubers are then again collected by hand. Mechanical : This system is not ideally suited to the conditions of Cuba. With this equipment the tubers can be collected in bulk in the field or on a trailer running along side the harvester. The tubers of sweet potato can be conserved in good condition for some time if they are stored in good conditions; for example:. Storage should be carried out in 45 Kg bags in store rooms with good ventilation and low humidity. The bags should be raised off the ground on wooden pallets.

In this way the tubers can be stored for 4 to 6 months. Cairo, P. Editorial Pueblo y Educacion Habana Cuba. Carballo, N. Effect of soil humidity on the sub - period of growing in the cultivation of sweet potato Ipomoea batata L I Forum cienific technic. Santa Clara, Cuba. Del Carpio. The genetic imp rovement of sweet potato in Peru. Vida Agricola Peru. Dias Sanchez, J. Determination of the fly activity of Cylas formicarius elegantulus F using a light trap.

Irrigiation standards. Technical collective of Irigation. La Havana, Cuba. Jacob, A. Ferti lization. Edicion revolucionaria. Instituto del Libro. Lopez Zada, M. Comparative study of sweet potato yield with different times of foliar nitrogen application. Centro Agricola Fac. Universidad Central de las Villas. Ministry of Agriculture.

Screening cultivated eggplant and wild relatives for resistance to bacterial wilt Ralstonia solanacearum. Asia accounts for 86 percent of world sweetpotato production, with China alone contributing 80 percent. Understanding patterns of abiotic and biotic stress resilience to unleash the potential of crop wild relatives for climate-smart legume breeding. School gardens can help. Improved OSFP seed system methods. Personalised recommendations.

Asian development potato research sweetpotato

Asian development potato research sweetpotato

Asian development potato research sweetpotato

Asian development potato research sweetpotato

Asian development potato research sweetpotato

Asian development potato research sweetpotato. A SEED IS A TIME CAPSULE

The future of coffee and cocoa agroforestry in a warmer Mesoamerica. Understanding patterns of abiotic and biotic stress resilience to unleash the potential of crop wild relatives for climate-smart legume breeding. Inheritance of resistance to cucurbit powdery mildew in bitter gourd.

HortScience 54 6 : Connecting genebanks to farmers in East Africa through the distribution of vegetable seed kits : Genebanks explore new partnerships with farmers and other user groups to provide smallholder farmers in Africa with better access to crop diversity for improved nutrition. International vegetable breeding: A strategy to create development impact at scale. Counting the beans: quantifying the adoption of improved mungbean varieties in South Asia and Myanmar: The adoption of improved varieties is an important indicator of the effectiveness of agricultural research.

This study quantified the adoption of improved mungbean Vigna radiata L. Wilczek varieties and agricultural practices in Bangladesh, India, Myanmar and Pakistan using an expert elicitation approach. Annual Report : The World Vegetable Center invites you to view our progress and projects for the year! Germinating ideas. Amazing things happen when private seed companies interact with public sector scientists to expand research horizons and explore joint opportunities for growth.

It represents the hopes and desires of farmers who produce crops, and people like you, who consume those crops. Training to suit your needs! The World Vegetable Center Genebank maintains a large collection of public domain germplasm for the current and future use of all humankind. We distribute seed samples of our germplasm accessions and advanced breeding lines worldwide. Revista Latinoamericana de la Papa Vol. Horton, D. Kim, B.

Hahn, KK. Kim, I. Mok, and B. Kokab, A. Marketing Potatoes in Pakistan. Pakistan - Swiss Potato Development Project. Islamabad: Pakistan Agricultural Research Council. Konjing, C. Konjing, M. Chaowakul, M. Thongjiem, and S. Wiersema Rhoades, R.

Guide for personal computers. Version 6, Edition, pp. Scott, G. In : Economie Agricole et Agro-Alimentaire — Wong, and M. In : Ecology of Food and Nutrition — Vander Zaag, P.

Hesen, J. G; and Turken- steen, L. Acta Horticulturae. Wageningen, Netherlands — Woolfe, J. The Potato in the Human Diet. Cambridge: Cambridge University Press, p. Scott 1 1. CIP Lima Peru. Personalised recommendations. Cite article How to cite? ENW EndNote.

Advancing research on new potato varieties in Central Asia and the Caucasus

Widely thought as the 'second bread' in many countries worldwide, it is also one of the highest research priority commodities for the Consultative Group on International Agricultural Research CGIAR. Evaluation trials were conducted under in-vitro laboratories and in open field in highland and lowland conditions in Uzbekistan and Tajikistan. Evaluation trials in Uzbekistan were carried in Pskem highland and Zangi-ota near Tashkent lowland. Following the field trials, on October 12, , the Institute also organized a cooking quality contest of the potato clones from highland of Pskem.

Rusudan Mdivani. Through preliminary evaluation of score sheets filled by the participants, the cooking quality contest revealed 3 clones out of 10, especially the clone In addition to conducting the contest, participants also attended a presentation seminar on field works in Pskem and Tashkent, and visited the field trials station at the Institute. Having established close research collaboration with other Central Asian countries and the Caucasus, CIP-bred potato clones tested in Uzbekistan were also tested in Georgia during , i.

While every effort has been made to ensure the accuracy of the information, the Program Facilitation Unit CGIAR-CAC cannot accept any responsibility for the consequences of the use of this information. Address P.

Asian development potato research sweetpotato