The Tropical Tuber Crops: Yams, Cassava, Sweet Potato and Cocoyams

Kew Bulletin ◽  
1979 ◽  
Vol 34 (2) ◽  
pp. 418 ◽  
Author(s):  
G. E. Wickens ◽  
I. C. Onwueme
Keyword(s):  

2021 ◽  
Vol 12 ◽  
Author(s):  
Dilnur Tussipkan ◽  
Shuga A. Manabayeva

New breeding technologies have not only revolutionized biological science, but have also been employed to generate transgene-free products. Genome editing is a powerful technology that has been used to modify genomes of several important crops. This review describes the basic mechanisms, advantages and disadvantages of genome editing systems, such as ZFNs, TALENs, and CRISPR/Cas. Secondly, we summarize in detail all studies of the CRISPR/Cas system applied to potato and other tuber crops, such as sweet potato, cassava, yam, and carrot. Genes associated with self-incompatibility, abiotic-biotic resistance, nutrient–antinutrient content, and post-harvest factors targeted utilizing the CRISPR/Cas system are analyzed in this review. We hope that this review provides fundamental information that will be useful for future breeding of tuber crops to develop novel cultivars.



1979 ◽  
Vol 2 ◽  
pp. 179-180
Author(s):  
M. Flach
Keyword(s):  


2004 ◽  
Vol 70 (1) ◽  
pp. 60-66 ◽  
Author(s):  
J. Allemann ◽  
S.M. Laurie ◽  
S. Thiart ◽  
H.J. Vorster ◽  
C.H. Bornman


2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
M. Nedunchezhiyan ◽  
S. K. Jata ◽  
G. Byju ◽  
S. S. Veena

A pot culture experiment on vermicomposting of cassava and sweet potato wastes/byproducts was conducted for March–May (season I) and June–August (season II) during 2010 at the Regional Centre of Central Tuber Crops Research Institute, Bhubaneswar, Orissa. The study revealed that the vermicompost prepared from biomass and byproducts of tuber crops had fairly higher levels of nitrogen (1.12–2.23%), phosphorus (0.26–0.88%), and potassium (0.33–1.29%) compared to initial status. The vermicompost prepared from sweet potato dry leaves had the highest nitrogen (2.23% and 2.03%), phosphorus (0.88% and 0.69%), and potassium (1.29% and 0.84%) content during both the years of study. Cassava thippi (tuber residue) required 40–43 days for the complete conversion into vermicompost, whereas all other biomass and byproducts needed more time (43–65 days). The rate of increase of earthworm weight and population was higher in vermicompost made from cassava and sweet potato thippi. Microbial counts indicated that populations of bacteria and fungi were higher in season I, whereas actinomycetes were higher in season II. The study indicated that all the biomass and byproducts of tuber crops can be effectively converted into high-value vermicompost.



2020 ◽  
Vol 22 (2) ◽  
pp. 94
Author(s):  
Evy Latifah ◽  
PER Prahardini

<p>The programs to increased food diversification through policies to accelerate diversification of food consumption based on local resources as a substitute for rice. The tubers that have been widely used by the community are cassava, sweet potato and potato. However, there are still many other yam plants that have not been maximally utilized and developed<strong>.  </strong>Thus it is necessary to carry out research aimed at knowing the identification and description of tuber crops, especially in several sub-districts in Trenggalek Regency. The determination of the research area was carried out by using purposive sampling method by coordinating with the Trenggalek Regency Agriculture Office, then to obtain data on the potential area of tubers was carried out by sampling using the snowball sampling method. From the results of the study, it is known that Munjungan sub-district is one of the districts that has the most land area (154.80 km2) compared to other sub-districts in Trenggalek Regency so that it is able to produce the production of several tuber commodities including uwi, gembili, gadung, suweg and bentoel so it needs development for this tubers in the region.<strong></strong></p>



Author(s):  
Warnita Warnita ◽  
Nalwida Rozen ◽  
Aisman Aisman

Tuber crops  (cassava and sweet potato) are potential sources of food that are widely used by the community. The demand for large quantities of potatoes increases every year. Therefore,we need to increase productivity. The purpose of this  action research  is to encourage student empathy to contribute and  solve the problem in society by applying research results to improve the yield of tubers (cassava and sweet potato) through community service program which is named KKN-PPM.  The methods applied by encouraging and motivating farmer groups, community leaders and small-processing industries.  The activities are: 1) counseling, 2) training and 3) demonstration of compost application on sweet potato cultivation and cassava in farmer's land 4) manufacturing of various cassava processed products and 5) the application of packaging to products. The results of this KKN-PPM program are: 1) Increased awareness and empathy of students on economic, social and cultural issues so as to increase the income of the people; 2) The occurrence of partnerships between students who have various skills and technology so that can be realized a good cooperation to empower the community in cultivation of tubers and its processing; 3. increasing knowledge and technology among the cultivators and processors of tuber crops and packaging improvements so as to increase the selling price. 4. Positive response which is  given by the community in the form of active participation and enthusiasm in following the activity from the beginning to end of the implementation.



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