Results 1 to 10 of about 37,069 (247)

Biological features of Amaranthus blitum L. and A. retroflexus L. invading potato plantings

open access: yesActa Biologica Sibirica, 2022
The paper addressed the study of some biological features of two weed species of Amaranthus L. – a widespread species A. retroflexus L. confined to Siberia and a rare species Amaranthus blitum L. Plants of different vital status were found in populations
Svetlana I. Mikhailova   +3 more
doaj   +1 more source

Inheritance of disc flower color in Helianthus petiolaris [PDF]

open access: yes, 2009
Disc flowers of Helianthus petiolaris (Asteraceae) are usually purple reddue to anthocyanin pigments in corolla lobes, style and stigma. However, yellow-flowered plants are occasionally found.
Delucchi, C.   +2 more
core   +1 more source

Gene banks for wild and cultivated sunflower genetic resources☆

open access: yesOilseeds and fats, crops and lipids, 2020
Modern breeding of sunflower (Helianthus annuus L.), which started 100 years ago, increased the number and the diversity of cultivated forms. In addition, for more than 50 years, wild sunflower and other Helianthus species have been collected in North ...
Terzić Sreten   +16 more
doaj   +1 more source

???? ???? ???? ??????? ???????? ???? ?????? ??????? ??????? Composite ?? ??? ??? Erysiphe graminis f.sp. tritici L. ??????? ?? ????? ???? ?????? Triticum aestivum L. ?????? ??????

open access: yesمجلة علوم ذي قار, 2019
This study aimed to examine the activity of aqueaos extract of  Helianthus annuus L. , Tagetes patula L. and Artemisia herba_alba L. on spore germination and the growth of Erysiphe graminis f.sp. tritici that isolated from Triticum aestivum L.
حيدر راضي
doaj   +4 more sources

Ecogeography and utility to plant breeding of the crop wild relatives of sunflower (Helianthus annuus L.)

open access: yesFrontiers in Plant Science, 2015
Crop wild relatives (CWR) are a rich source of genetic diversity for crop improvement. Combining ecogeographic and phylogenetic techniques can inform both conservation and breeding.
Michael Benjamin Kantar   +12 more
doaj   +1 more source

Supplemental macronutrients and microbial fermentation products improve the uptake and transport of foliar applied zinc in sunflower (Helianthus annuus L.) plants. Studies utilizing micro X-ray florescence. [PDF]

open access: yes, 2014
Enhancing nutrient uptake and the subsequent elemental transport from the sites of application to sites of utilization is of great importance to the science and practical field application of foliar fertilizers.
Cliff eRamsier   +9 more
core   +2 more sources

Helianthus annuus L. hybrid ideotype

open access: yesTAURIDA HERALD OF THE AGRARIAN SCIENCES, 2021
The issue of determining the ideotype of sunflower varieties and hybrids is relevant not only for breeding but also for cultivation in new environmental conditions. The aim of our research was to evaluate the genotypes according to ecological adaptability and establish the parameters of the sunflower ideotype for the arid conditions of the Crimean ...
E.V. Kostenkova, A.S. Bushnev
openaire   +1 more source

Oviposition by the Banded Sunflower Moth, \u3ci\u3eCochylis Hospes\u3c/i\u3e (Lepidoptera: Cochylidae) in Response to \u3ci\u3eHelianthus Annuus\u3c/i\u3e Pollen [PDF]

open access: yes, 2017
Oviposition on an artificial substrate by the banded sunflower moth Cochylis hospes Walsingham was examined in response to sunflower pollen (Helianthus annuus) and sunflower pollen extract.
Barker, John F, Grugel, Sharon
core   +2 more sources

Tamaño representativo de la parcela experimental para girasol (Helianthus annuus L.) en la Región de los Ríos, Tabasco

open access: yesEcosistemas y Recursos Agropecuarios, 2014
Con el propósito de determinar el tamaño de la parcela expermental para girasol (Helianthus annuus L.) en la región de los Ríos, Tabasco,
Avinadad Hernández Jiménez   +1 more
doaj   +1 more source

Evaluation of Argentine wild sunflower biotypes for drought stress during reproductive stage [PDF]

open access: yes, 2012
As in several regions where sunflower production has moved to areas with limiting water availability, the search for water-stress tolerant genotypes has been intensified. Helianthus annuus ssp. annuus L.
Cantamutto, Miguel Ángel   +3 more
core   +1 more source

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