Results 61 to 70 of about 16,212 (143)

UNUSUAL GROWTH OF POLLEN TUBES IN THE OVARY OF QUINCE (Cydonia oblonga Mill.)

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2017
This paper presents the results of a three-year research (2010–2012) of unusual growth of pollen tubes in the ovary in eight cultivars of quince in two pollination variants (self-pollination and open-pollination). Unusual behavior of pollen tubes growth
Aleksandar Radović   +5 more
doaj  

Selfing strategy in the mixed mating system of Tulipa sinkiangensis in unstable pollination environment in early spring

open access: yesXibei zhiwu xuebao
[Objective] In unstable pollination environments, bisexual flowering plants often possess potential selfing ability. Given the mating cost of selfing, investigating selfing strategies in different environments are critical for the understanding of ...
JIAO Fangfang   +3 more
doaj   +1 more source

Effect of pollen source on germination of Vanilla planifolia, V. pompona (Orchidaceae), and their interspecific hybrids

open access: yesBotan‪ical Sciences
Background: Vanilla planifolia and V. pompona exhibit low seed germination rates. Although their fruits are obtained through manual self-pollination, the effect of intra- and interspecific cross-pollination on their fruits and seeds remains unknown ...
José Martín Barreda-Castillo   +5 more
doaj   +1 more source

Improving yields in self-pollinated crops

open access: yesCalifornia Agriculture, 1962
Some mixtures of pure-line varieties of self-pollinated crops show promise of improving yields and stabilizing productivity, as compared to the pure lines.
openaire   +1 more source

Precocious genotypes and homozygous tendency generated by self-pollination in walnut. [PDF]

open access: yesBMC Plant Biol, 2018
Chen L   +7 more
europepmc   +1 more source

Effects of Self-Pollination in the Genus Pinus

open access: yes, 1980
The problems of self-pollination among trees are a major concern to foresters. Silvicultural practices have an effect on the frequency of self-pollination.For example, a cut, such as a shelterwood or seed tree, reduces the number of individuals in the breeding population and increases the distance between individual trees.
openaire   +3 more sources

Self-pollination in the genus Erica

open access: yes, 2009
The ability of flowers to self-pollinate was investigated in eight species of the diverse Erica genus. Self-pollination was found to occur in five out of the eight species, with mainly bird pollinated species having a high degree of selfing. The use of a broken anther ring as an indication of visitation and pollination of the flowers was also ...
openaire   +1 more source

Can and do Ericas self pollinate?

open access: yes, 2011
Within the Cape Floristic Region many lineages are characterised by large floral diversity. The genus Erica is one of these lineages, making up -7% of the CFR. Surprisingly, even though pollinators have been suggested to be a driving force of floral morphology, the role of pollinators in the floral diversification and speciation of this genus is not ...
openaire   +1 more source

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