TERRITORIAL UTILIZATION OF RESISTANCE SOURCES FROM THE WORLD COLLECTION OF THE VAVILOV INSTITUTE FOR WHEAT AND BARLEY BREEDING

1977 ◽  
Vol 287 (1 The Genetic B) ◽  
pp. 29-34 ◽  
Author(s):  
V. I. Krivchenko
Keyword(s):  
Resistance Sources ◽  
Barley Breeding ◽  
Vavilov Institute ◽  
World Collection ◽  
The World

Latitudinal Adaptation of Flowering Response to Photoperiod and Temperature in the World Collection of Sorghum Landraces

Crop Science ◽  
2018 ◽  
Vol 58 (3) ◽  
pp. 1265-1276
Author(s):  
Hari D. Upadhyaya ◽  
Kothapally Narsimha Reddy ◽  
Mani Vetriventhan ◽  
Mohammed Irshad Ahmed ◽  
Mulinti Thimma Reddy
Keyword(s):  
Flowering Response ◽  
World Collection ◽  
The World

scholarly journals Yield evaluation of varieties from the world collection of birdsfoot trefoil (Lotus corniculatus L.)

2011 ◽  
Vol 48 (No. 6) ◽  
pp. 265-270
Author(s):  
J. Pelikán
Keyword(s):  
Seed Yield ◽  
Lotus Corniculatus ◽  
Field Trials ◽  
Birdsfoot Trefoil ◽  
Local Varieties ◽  
World Collection ◽  
The World ◽  
Herbage Yield ◽  
Second Year ◽  
Good Productivity

In field trials in 1998–2000, ten varieties of the world collection of birdsfoot trefoil (Lotus corniculatus) were evaluated for herbage and hay yields. In all the years of testing yields from three cuttings and total annual production were evaluated. In 1999, seed yield was also recorded. As a control, alfalfa (Medicago sativa) variety was included in the experiment. The test varieties showed good productivity in the first and especially in the second year of testing, most of them exceeded alfalfa in herbage yield in individual cuttings and in total productions. As for hay yield, the differences were not so great. Local varieties showed very good productivity, predominantly in herbage yields. Of foreign varieties, the best herbage, hay and seed yielder was the Hungarian variety Puszta. There were no statistical differences in seed yield between the varieties. The yields were, however, relatively low.

scholarly journals Vitamin C and reducing sugars in the world collection of Capsicum baccatum L. genotypes

2016 ◽  
Vol 202 ◽  
pp. 189-198 ◽  
Author(s):  
Venu Perla ◽  
Padma Nimmakayala ◽  
Marjan Nadimi ◽  
Suresh Alaparthi ◽  
Gerald R. Hankins ◽  
...  
Keyword(s):  
Vitamin C ◽  
Reducing Sugars ◽  
Capsicum Baccatum ◽  
World Collection ◽  
The World

scholarly journals Evaluation of the cucumber gene pool of the VIR collection on precocity and fruiting period under the conditions of the Lower Volga region

2020 ◽  
pp. 16-21
Author(s):  
T. M. Piskunova ◽  
E. Kh. Sukhanberdina
Keyword(s):  
Gene Pool ◽  
Relative Resistance ◽  
Term Study ◽  
Lower Volga Region ◽  
Long Term Study ◽  
Research Material ◽  
World Collection ◽  
The World ◽  
Early Ripening

Relevance. In connection with the annual epiphytotic development of peronosporosis (Pseudoperonospora cubensis (Berk. and Curt.) Rostow. on cucumber and the absence varieties immune to this disease, it is advisable to create and cultivate precocious varieties and hybrids that can form the main part of the yield before the period of mass spread of the disease. In order to rationally use the cucumber gene pool long-term research of the world collection is carried out to search of sources of yield, precocity and resistance to peronosporosis.Material and methods. The studies were conducted at Volgograd Experimental Station of VIR (Volgograd province). The research material was 370 cucumber accessions from the world collection of VIR. Evaluation of accessions on a complex of signs was carried out according to methodical guidelines of VIR.Results and conclusions. Long-term study of cucumber accessions of various geographical origin showed that the duration of the interphase period "mass seedlings - the first harvest of fruits" did not differ significantly in samples of different geographical groups, most of them belong to the early ripening. It was found that the duration of the fruiting period depended on the degree of resistance of plants to peronosporosis: the higher the resistance of the variety or hybrid, the longer the fruiting period. A number of precocious, yielding hybrids and varieties, as well as samples with a long period of fruiting and relative resistance to peronosporosis, were allocated. The perspective material for the decision of separate problems in breeding of a cucumber is recommended.

Bioconversion of Vegetable, Animal, and Industrial Wastes by Means of Fungi Mycelia in an Artificial Rumen

1986 ◽  
Vol 8 (1) ◽  
pp. 1-6
Author(s):  
Atanas Torev
Keyword(s):  
Large Range ◽  
Industrial Wastes ◽  
Submerged Cultivation ◽  
World Collection ◽  
The World ◽  
Micro Organisms

In nature there are several thousand different higher fungi species, but not all of them have mycelia whose characteristics are in optimum combinations. Many of these fungi cannot be subjected to submerged cultivation, do not assimilate a large range of substrates, synthesize only a small amount of protein, and have an unsatisfactory degree of protein assimilation and other limitations. The V. Kolarov Higher Institute of Agriculture in Plovdiv, Bulgaria, has isolated strains of higher fungi mycelia that combine the most desirable biological, technological, and nutritive characteristics. A strain called PS-64 is especially promising. It was isolated in 1964, patented, and registered in the world collection of micro-organisms. PS-64 is available for license.

ASTER YELLOWS RESISTANCE EN FLAX

1961 ◽  
Vol 41 (2) ◽  
pp. 316-319 ◽  
Author(s):  
A. L. D. Martin ◽  
R. A. Frederiksen ◽  
P. H. Westdal
Keyword(s):  
Virus Disease ◽  
Breeding Program ◽  
Resistant Parent ◽  
Aster Yellows ◽  
World Collection ◽  
The World ◽  
Selection Of

A search for a source of resistance in flax to the virus disease called aster yellows was initiated in 1958. The variety Abyssinian (C.I. 302) from the World Collection of flax contributed a greater number of plants free from aster yellows symptoms than other varieties tested. Selection of plants free from symptoms after exposure to caged leafhoppers was carried out for five generations. A selected strain of Abyssinian was produced with a higher degree of aster yellows resistance. This strain is considered satisfactory as an aster yellows resistant parent in a breeding program.

scholarly journals Hotspots and gaps in the world collection of subterranean clover (Trifolium subterraneum L.)

2014 ◽  
Vol 153 (6) ◽  
pp. 1069-1083 ◽  
Author(s):  
K. GHAMKHAR ◽  
P. G. H. NICHOLS ◽  
W. ERSKINE ◽  
R. SNOWBALL ◽  
M. MURILLO ◽  
...  
Keyword(s):  
Phenotypic Diversity ◽  
Meta Analysis ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
Habitat Diversity ◽  
Morphological Data ◽  
Collection Site ◽  
Ecological Data ◽  
World Collection ◽  
The World

SUMMARYSubterranean clover (Trifolium subterraneum L.) is the most important annual pasture legume in the winter-dominant rainfall areas of Southern Australia. Systematic germplasm collections of subterranean clover from its centre of origin have been made since the 1950s, particularly by Australian scientists, in order to broaden the genetic base of the species. The present study reports on a meta-analysis of the distribution of the world collection of subterranean clovers and their relationships to eco-geographic variables of the collection sites in their native habitat. Diversity hotspots (areas rich in number of accessions and containing a high diversity of sub-species) and also gaps (areas with particular traits un- or under-represented in collections) were identified. This was achieved using a stratified data system to evaluate eco-geographical and agro-morphological data which incorporated three tiers of information for the subterranean clover collection: (1) information from each collection site, including ecological data; (2) information on the phenotypic diversity within each collection site; and (3) plant agro-morphological data from each sample grown under controlled conditions. Correlations were found between some eco-geographic conditions and agronomic performance. These included correlations between latitude and flowering time, mean temperature in winter and winter productivity and precipitation in summer and seed dormancy. The present study concluded that subterranean clover versatility is greater than suggested in the past. The results of the current analysis provide a guide for future collecting missions to specific regions towards areas of maximum diversity (hotspots) and unknown diversity (gaps).

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