Results 91 to 100 of about 290,100 (296)

Metabolomic Analysis of Pollen Grains with Different Germination Abilities from Two Clones of Chinese Fir (Cunninghamia lanceolata (Lamb) Hook)

open access: yesMolecules, 2018
Pollen grains produce certain metabolites, which can improve or inhibit germination and tube growth. Metabolomic analysis of germinating and growing Chinese fir pollen has not been reported.
Seif Aldin Dawina Abdallah Fragallah   +4 more
doaj   +1 more source

Pollen characteristics and in vitro pollen germination of Cedrus libani A. Rich

open access: yesAfrican Journal of Biotechnology, 2009
This study aims to determine the germination characteristics, pollen tube developments, effects of germination media and temperature and incubation durations of the pollens obtained from the four clones (11342, 11344, 11345 and 11351) of Cedrus libani A. Rich.
ÇÖLGEÇEN, HATİCE   +2 more
openaire   +5 more sources

‘I like to dance with the flowers!’: Exploring the possibilities for biodiverse futures in an urban forest school

open access: yesChildren &Society, EarlyView.
Abstract This article explores the ways in which ‘forest school’, an educational approach where children engage in creative and play based activities in a ‘natural’ environment, can contribute towards Sustainable Development Goal 15 (SDG 15) by promoting sustainable use of terrestrial ecosystems and by helping address biodiversity loss. Drawing on data
Hannah Hogarth
wiley   +1 more source

Determination of Pollen Fertility of Some Cut Rose Varieties in Different Periods

open access: yesDüzce University Faculty of Forestry Journal of Forestry
In rose breeding by hybridization, the viable pollen and germination rate of the male parent increases the rate of successful pollination. Therefore, a good variety of pollinators is always needed in hybridization studies.
Şüheda Basire Akça Yılmaz   +1 more
doaj   +1 more source

Effects of the biological and chemical agents on the pollen germination of invasive species Impatiens parviflora DC. (Balsaminaceae)

open access: yesІнтродукція Рослин, 2013
Pollen germination of invasive species Impatiens parviflora DC. is investigated in different mediums separately and together with pollen grains of other plants using method in vitro.
O.A. Ihnatiuk, L.P. Gaponova, I.D. Omeri
doaj   +1 more source

II. Researches on the germination of the pollen grain and the nutrition of the pollen tube [PDF]

open access: yesProceedings of the Royal Society of London, 1894
Abstract Many observers, especially Van Tieghem and Mangin, have established the fact that the growth of the pollen tube is a process of true germination, strictly comparable to that of the growth of the prothallus from the spore in the groups of Vascular Cryptogams.
openaire   +2 more sources

Reactive oxygen species, antioxidants and the regulation of plant development

open access: yesThe FEBS Journal, EarlyView.
The regulation of axillary bud outgrowth by the interplay between phytohormone and redox signals. Axillary bud outgrowth is regulated by cellular energy status and the balance between phytohormones, notably abscisic acid (ABA) and gibberellic acid (GA).
Juwita R. Dewi   +2 more
wiley   +1 more source

Bacteriomes, cryptic forms and evolution of a common wireworm pest species, Hypnoidus bicolor

open access: yesInsect Molecular Biology, EarlyView.
Wireworms are important agricultural pests, including Hypnoidus bicolor in the Canadian Prairies. Parthenogenetic and sexual populations of H. bicolor appear associated with different molecular clades. Bacterial community composition and structure were influenced by developmental stage, sampling location and host genetics.
Ivan Drahun   +5 more
wiley   +1 more source

Factors Influencing Date Pollen Viability

open access: yesJournal of Agricultural and Marine Sciences, 1997
Pollen of seven date cultivars was stored at 4.5 -5.0'C using desiccator with or without silica gel and in vials outside the desicator as a control. Germination percentage was determined microscopically with a hemacytometer after harvest and at three and
M. O. El Mardi   +3 more
doaj   +1 more source

Ability of Pollen to Germinate prior to Anthesis and Effect of Desiccation on Germination

open access: yesPlant Physiology, 1984
The ability of pollen to germinate prior to anthesis was tested using Easter lily (Lilium longiflorum L.) and corn (Zea mays L.). Lily pollen normally dries to a low moisture content between anthesis and pollination while corn does not. The corn pollen germinated well (about 73%) when removed from anthers 1 day before anthesis and placed on culture ...
J J, Lin, D B, Dickinson
openaire   +3 more sources

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