Results 71 to 80 of about 570,641 (183)

On special quadratic birational transformations of a projective space into a hypersurface

open access: yes, 2012
We study transformations as in the title with emphasis on those having smooth connected base locus, called "special". In particular, we classify all special quadratic birational maps into a quadric hypersurface whose inverse is given by quadratic forms ...
A Alzati   +28 more
core   +1 more source

Soybean varieties suitability in agroforestry system with kayu putih under influence of soil quality parameters

open access: yesRevista Ceres, 2020
The existence of soybean varieties and soil type interaction causes differences in productivity of soybean varieties in agroforestry systems with kayu putih.
Taufan Alam   +6 more
doaj   +1 more source

ECOLOGICAL STABILITY OF GRAIN CROP VARIETIES AND TASKS OF BREEDING

open access: yesЗерновое хозяйство России, 2018
The article presents the results of the comparative study of the new and old varieties of six grain crops (winter rye, winter and spring wheat, winter triticale, spring barley, oats), conducted among the crops according to the range of environmental ...
A. A. Goncharenko
doaj   +2 more sources

Variability of resistance to common bunt of wheat

open access: yesPlant Protection Science, 1999
During 1997-1998, the reaction of the collections of winter and spring wheat varieties to Tilletia caries was determined. In both years the most diseased winter varieties were Simona and Sparta, the least diseased were Samara and Ilona.
Antonín Pospisil   +2 more
doaj   +1 more source

Special elements in lattices of semigroup varietie [PDF]

open access: yesActa Scientiarum Mathematicarum, 2015
We survey results concerning special elements of nine types (modular, lower-modular, upper-modular, cancellable, distributive, codistributive, standard, costandard and neutral elements) in the lattice of all semigroup varieties and certain its sublattices, mainly in the lattices of all commutative varieties and of all overcommutative ones. Several open
openaire   +2 more sources

Specialization of endomorphism rings of abelian varieties [PDF]

open access: yesBulletin de la Société mathématique de France, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

The features of formation of grain crops seed market

open access: yesЗерновое хозяйство России, 2018
The features of formation of grain crops seed market The article considers the peculiarities of the seed market. The special attention is focused on the fact that seeds, as a commodity, have a market value and a consumer demand, and the seed market is a ...
S. A. Raeva
doaj   +1 more source

Influence of Garmsil and High Temperature on Cotton Productivity [PDF]

open access: yesBIO Web of Conferences
For the first time in the Republic, a special device was developed to create an artificial harmsel with different wind speeds (2; 4; 6; 8; 10 m/sec) and high temperatures (+48-50°C).
Rakhmankulov Saidakbar   +2 more
doaj   +1 more source

The content of some of the essential elements in the fruit of the (Diospyros L.) persimmon of the Nikitsky Botanical Garden collection

open access: yesPlant Varieties Studying and Protection, 2013
The article mentions that the special attention is deserved by such persimmon varieties being included into the collection of Garden: Nikita Burgundy – the most famous of the hardiest varieties, widely used in industrial horticulture grade foreign ...
С. Ю. Хохлов   +1 more
doaj   +1 more source

NEW SERBIAN LEGISLATION ON RECOGNITION AND PROTECTION OF PLANT VARIETIES

open access: yesEkonomika Poljoprivrede (1979), 2010
From the year 2009, in the Republic of Serbia the legislation on recognition and protection of plant varieties has been largely harmonized with relevant international legislation, especially with the EU legislation.
Dušan Dabović
doaj  

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