Results 11 to 20 of about 44,714 (260)

Relation between nuclear DNA content and rate of cell growth during interphase in four species of Angiospermae

open access: yesActa Societatis Botanicorum Poloniae, 2015
Among four species of Angiospermae with known nuclear DNA content (Cucurbita pepo - 2.6 pg, Helianthus annuus - 12.0 pg, Vicia faba — 38.0 pg, and Tulipa kaufmanniana - 93.7 pg) the cell growth in the intermitotic period of the cell cycle has been ...
K. Marciniak   +3 more
doaj   +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

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

???? ???? ???? ??????? ???????? ???? ?????? ??????? ??????? 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

The repetitive component of the sunflower genome

open access: yesCurrent Plant Biology, 2014
The sunflower (Helianthus annuus) and species belonging to the genus Helianthus are emerging as a model species and genus for a number of studies on genome evolution. In this review, we report on the repetitive component of the H.
T. Giordani, A. Cavallini, L. Natali
doaj   +1 more source

Glyphosate inhibition of ferric reductase activity in iron deficient sunflower roots [PDF]

open access: yes, 2007
Iron (Fe) deficiency is increasingly being observed in cropping systems with frequent glyphosate applications. A likely reason for this is that glyphosate interferes with root uptake of Fe by inhibiting ferric reductase in roots required for Fe ...
Cakmak, Ismail   +10 more
core   +3 more sources

Pollen from multiple sunflower cultivars and species reduces a common bumblebee gut pathogen [PDF]

open access: yesRoyal Society Open Science, 2019
Pathogens are one of the factors driving pollinator declines. Diet can play an important role in mediating pollinator health and resistance to pathogens. Sunflower pollen (Helianthus annuus) dramatically reduced a gut pathogen (Crithidia bombi) of Bombus
George M. LoCascio   +3 more
doaj   +1 more source

Helianthus annuus L.

open access: yes, 2021
Published as part of Info Flora, 2021,
openaire   +2 more sources

In vivo Analgesic activity of methanolic extract of Helianthus annuus seeds [PDF]

open access: yes, 2016
The sunflower seed is the seed of the sunflower (Helianthus annuus). The methanol extract of seeds of Helianthus annuus were screened for analgesic activity in mice model to systematically explore the medicinal values of the plant.
Islam, Rubab Tarannum, Islam, Tanjimul
core   +1 more source

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

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