Phenotypic Variation Analysis of Sweet Potato Germplasm Resources from Different Agro-climate Zones in the World

2016 ◽  
Vol 13 (6) ◽  
pp. 1-13 ◽  
Author(s):  
Wenjin Su ◽  
Yi Liu ◽  
Jian Lei ◽  
Lianjun Wang ◽  
Shasha Chai ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Phenotypic Variation ◽  
Germplasm Resources ◽  
Variation Analysis ◽  
Climate Zones ◽  
Potato Germplasm ◽  
The World

scholarly journals Morpho-agronomic characterization of sweet potato germplasm

2017 ◽  
Vol 35 (4) ◽  
pp. 534-541 ◽  
Author(s):  
Rodrigo P Alves ◽  
Arie F Blank ◽  
Alisson Marcel S Oliveira ◽  
Aléa Dayane D Santana ◽  
Vanderson S Pinto ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Agronomic Traits ◽  
Phenotypic Variability ◽  
Block Design ◽  
Leaf Shape ◽  
Dry Mass ◽  
Good Prospect ◽  
Aboveground Part ◽  
Potato Germplasm

ABSTRACT Sweet potato (Ipomoea batatas) spreads mainly by vegetative propagation, and therefore this vegetable may have duplicate accessions in germplasm banks. The authors aimed to characterize morpho-agronomically the sweet potato germplasm from the Active Germplasm Bank (AGB) of Universidade Federal de Sergipe (UFS).The experiment was carried out at the Research Farm “Campus Rural da UFS”. The experimental design was a randomized block design, testing 73 sweet potato accessions with two replicates and four plants per plot. Morpho-agronomic traits of aboveground part and roots were evaluated. We observed that the leaf lobe type, the number of lobes per leaf, shape of central lobe, and general leaf shape were traits which provided the most variability among the accessions. For damage caused by soil insects, 52 accessions showed tolerance. The accessions presented a range from 0.33 to 2.71 t/ha for dry mass of aboveground part and from 1.20 to 10.89 t/ha for the total productivity of the roots. The high phenotypic variability of this crop shows good prospect for breeding programs.

scholarly journals EVALUATION OF SWEET POTATO GERMPLASM FOR RESISTANCE TO SWEETPOTATO WEEVIL, 2005

2006 ◽  
Vol 31 (1) ◽  
Author(s):  
Richard N. Story ◽  
M. J. Murray ◽  
A. M. Hammond ◽  
D. R. LaBonte
Keyword(s):  
Sweet Potato ◽  
Sweetpotato Weevil ◽  
Potato Germplasm

scholarly journals EVALUATION OF SWEET POTATO GERMPLASM FOR RESISTANCE TO SWEETPOTATO WEEVIL, 2003

2004 ◽  
Vol 29 (1) ◽  
Author(s):  
R. N. Story ◽  
A. M. Hammond ◽  
M. J. Murray ◽  
D. R. LaBonte
Keyword(s):  
Sweet Potato ◽  
Sweetpotato Weevil ◽  
Potato Germplasm

scholarly journals ZIK VIRUS AS A PRIME EXAMPLE OF EMERGENT INFECTIONS

2020 ◽  
Vol 20 (2) ◽  
pp. 265-270
Author(s):  
Yu.V. Chumak ◽  
H. A. Loban ◽  
M. M. Ananieva ◽  
M. O. Faustova
Keyword(s):  
Infectious Diseases ◽  
Viral Infection ◽  
Zika Virus ◽  
Rapid Expansion ◽  
Infected Mosquito ◽  
Temperate Climate ◽  
Subtropical Climate ◽  
Transplacental Transmission ◽  
Climate Zones ◽  
The World

The recent development of technologies of the laboratory systems in microbiology, providing detailed genome sequencing, has paved the ways for isolating new pathogens and carrying out in-depth study of long-known microorganisms. Moreover, the progressing of science and technology contributes to study changes in the ecology of microorganisms and the epidemiological characteristics of their spreading over the world. These advances enable scientists to find out some "new" diseases, known as emergent infectious diseases. Emergent diseases have emerged as a new type of rapidly evolving, long-known infectious diseases. A prime example of an emergent infection is the Zika virus (ZIKV). ZIKV belongs to the family Flaviviridae of the Flavivirus genus. It was first isolated from the blood of a rhesus macaque in 1947 in East Africa (Uganda), in the Zika forest, where its name came from. A year later, in the same area, ZIKV was detected in mosquitoes of the Aedes africanus genus. For a long time following the initial isolation of ZIKV, isolated sporadic cases of the disease caused by this pathogen were recorded in Asia and Africa. In 2007, an ZIKV outbreak was reported on the island of YAP (Micronesia). This was the first outbreak outside Asia and Africa. Zika virus is primarily transmitted by the bite of an infected mosquito from the Aedes genus in tropical and subtropical regions. But according to literature data, this virus can be spread by 17 species of mosquitoes of this genus. AE. aegypti and Ae. Albopictus have been known a leading role of spreading the infection. Considering that these mosquitoes are not only carriers of ZIKV, but also some other flavivirusiv representatives, their wide geographical distribution has become an issue of great concern. AE. aegypti mosquitoes are thermophilic and live only in tropical and subtropical climate zones and this fact has played as significant rope in the ZIKV spread. Ae. albopictus mosquitoes promote the circulation of this pathogen and cause a rapid expansion of the virus in the world, since this species has become widely distributed in countries of subtropical and temperate climate zones. To date, besides the main vector-borne transmission of the virus, there are a number of reports about ZIKV transplacental transmission from an infected mother to the foetus. ZIKV caused viral infection during the pregnancy results in microcephaly, a congenital condition associated with incomplete brain development and abnormally small size of the skull. This viral infection can also lead to such complications as miscarriage, stillbirth, and premature birth. According to the literature, there is the connection between ZIKV and not congenital CNS abnormalities, but also with Guillain-Barre syndrome. There have been publications on not only ZIKV mosquito transmission and transplacental transmission, but a few reports on ZIKV sexual transmission when no barrier contraceptives are used. ZIKV can be isolated from ejaculate within 14-28 days from the onset of the first symptoms of the disease.

scholarly journals INVENTARISASI DAN KARAKTERISASI PLASMA NUTFAH PERTANAMAN UBI JALAR (Ipomoea batatas L.) DI PULAU LOMBOK

2020 ◽  
Vol 8 (1) ◽  
pp. 136
Author(s):  
Sumarjan Sumarjan ◽  
Lestari Ujianto ◽  
Agung Bagus Darma
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Food Sources ◽  
Sweet Potatoes ◽  
Local Varieties ◽  
Potato Plants ◽  
Potato Germplasm ◽  
High Level ◽  
Descriptive Method ◽  
Lombok Island

Lombok Island as an area that still has a high level of food insecurity is deemed necessary to develop tuber crops such as sweet potatoes, this is to support the diversity of existing food sources. This study aims to determine: 1) sweet potato germplasm cultivated on Lombok Island; and 2) the characteristics of sweet potato germplasm on Lombok Island. This research uses a descriptive method. Inventarization is carried out by the exploration method, and using cluster analysis which is then displayed in the form of a phenogram. The results showed: 1) obtained 17 accessions of sweet potato plants spread in 4 districts of Lombok Island; 2) the accessions found consisted of accessions of Sweet Potato KLU, Honey KLU, Purple 04 KLU, Orange Lobar, White Lobar, Purple 01 Lobar, Purple 02 Lobar, Purple 03 Lobar, Ornamental Attic, Attic Yellow, Attic White, Purple 01 Attic, Purple 02 Attic, Honey Lotim, Sokan Lotim, Purple 05 Lotim, and Purple 06 Lotim; 3) the cause of the differences in the characteristics of all observed accessions is genetic factors that are supported by different growing environmental conditions. In the accession of Sweet Potato Beduk KLU and Sokan Lotim are local varieties of sweet potato from Lombok Island, so it needs to be developed to maintain local superior sweet potato varieties from Lombok Island.

scholarly journals Selection of Dried and Table Apricots in Nevsehir and Nigde Regions, Turkey

2019 ◽  
Vol 11 (4) ◽  
pp. 428-433
Author(s):  
Veyis YURTKULU ◽  
Ali KÜDEN ◽  
Ayzin B. KÜDEN
Keyword(s):  
Fruit Weight ◽  
Germplasm Resources ◽  
Stone Fruits ◽  
Wide Range ◽  
The World ◽  
Long Time ◽  
Brix Value ◽  
Apricot Tree ◽  
Different Characteristics ◽  
Selection Of

Apricot, for which Turkey is recognized as a top producer and the leading country in the world, is one of the most produced stone fruits in Turkey. For long time ago, apricot has been grown with the nursery plants obtained from the seeds in Nevsehir and Nigde provinces caused a wide range of germplasm resources in this area (Cappadocia area). Each apricot tree shows different characteristics and could be a variety candidate. With this study, phenological and pomological characters of 91 genotypes were determined and among them 15 of the best promising genotypes were given in this paper. Considering the experimented 15 genotypes, 8 genotypes gave higher Brix value (SSC) (27-31%) than ‘Hacihaliloglu’ variety (25-26%) which was the most common dried apricot variety in Turkey. Regarding the fruit weight, which is an important aspect for both dried and table fruits, high valued genotypes were also determined. The fruit weight of 11 genotypes were higher than 50 g with the values between 51.45 g and 84.02 g. As a result of this study, candidates for dried and table apricot genotypes were identified.

scholarly journals Key features of climate-neutral energy systems for municipalities in different climate zones

2021 ◽  
Vol 2042 (1) ◽  
pp. 012044
Author(s):  
Gerhard Stryi-Hipp ◽  
Annette Steingrube ◽  
Marc-André Triebel ◽  
Vicky Albert-Seifried
Keyword(s):  
Energy Supply ◽  
Strong Influence ◽  
Energy Systems ◽  
Energy System ◽  
Development Stage ◽  
Climate Zones ◽  
The World ◽  
Key Features ◽  
Supply Systems ◽  
Energy Supply Systems

Abstract The conditions for cities to supply themselves with climate-neutral energy sources vary greatly around the world and depend on many parameters such as the climate, settlement density, intensity of land use, geographical conditions and the economic development stage of the country. Climate-neutral energy system solutions for 7 cities and counties in Europe, Asia and Africa were calculated and compared to identify climate zone-depending patterns for the structures of climate-neutral energy systems. It could be demonstrated that climate zones have a strong influence on the design of climate-neutral energy supply systems, both in terms of renewable energy provision (e.g. solar radiation) and energy consumption (e.g. space heating demand).

scholarly journals Eucalypts for Tropical Rainforest (Af) climate

2021 ◽  
Vol 70 (1) ◽  
pp. 170-183
Author(s):  
Arno Brune
Keyword(s):  
Genetic Diversity ◽  
Vegetative Propagation ◽  
Tropical Rainforest ◽  
Equatorial Region ◽  
Potential Productivity ◽  
Climate Zones ◽  
The World ◽  
Soil Depletion ◽  
Tropical Monsoon ◽  
Leaf Blights

Abstract The equatorial region of the world includes areas of Tropical Rainforest (Af) and Tropical Monsoon (Am) climate zones, which are distinguished by high temperatures and high rainfall, but soils which are often deficient. Potential productivity of plantation forestry in this area is high, and so are the pest and disease dangers which threaten it. This paper describes the Eucalyptus and Corymbia species which are adapted to this situation and also resistant to the main diseases like leaf blights. Based on the highly adapted E. biterranea and E. deglupta and several more, hybridization combined with vegetative propagation is discussed as an excellent alternative to obtain quick gains in short rotations while maintaining wide genetic diversity in such plantations. Management remedies are given for the possible backlash of quick soil depletion.

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