Results 21 to 30 of about 1,363 (176)
Explosive pollination includes a rapid release of floral sexual elements that are enclosed in modified petals, and a subsequent contact with pollinators’ body.
Thiago Amorim +3 more
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THE EVOLUTION OF AUTOGAMY IN SPECIES OF THE MUSTARD GENUSLEAVENWORTHIA [PDF]
In about 80% of all species of hermaphroditic flowering plants the pollen is incapable of germinating on the styles of the flowers that produce it, a condition known as selfincompatibility (Fryxell, 1960). The genetic control is usually simple, one-locus, and multiallelic (Lewis, 1954) although more complex two-locus systems are known (Lundquist, 1975).
Otto T, Solbrig, Reed C, Rollins
openaire +2 more sources
Pollination Ecology of Sabatia Campenstris Nutt. (Gentianaceae)
Flower timing studies in June and July (1972) on populations of Sabatia campestris Nutt. show this plant to be allogamous (out crossing) under natural field conditions.
Constance E. Taylor
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Induction of autogamy by treatment with trypsin in Paramecium Caudatum [PDF]
ABSTRACT Firmly united conjugant pairs of P. caudatum were easily separated by treatment with trypsin, 0 · 025–1 · 0 mg/ml in 2 mM phosphate buffer at pH 7 · 2. Cytological observations showed that pairs separated by this means undergo normal meiosis and subsequent prezygotic divisions.
K, Mikami, S, Koizumi
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This study investigated pollination mechanisms and breeding systems in five Commelina variants: two subspecies of Commelina diffusa (C. diffusa subsp. aquatica and C. diffusa subsp. montana, each having two staminodes); two variants of C.
Matthew Oziegbe +2 more
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Preventing self-fertilization: Insights from Ziziphus species
The fitness of self-progeny individuals is inferior to that of their outcrossed counterparts, resulting in a reduction in a plant population’s ability to survive and reproduce.
Noemi Tel-Zur
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Domestication is an evolutionary process with an impact on plant reproduction. Many domesticated plants are self-compatible (i.e., they lack mechanisms to reject their own pollen), but few domesticated plants are fully or partially self-incompatible.
Lislie Solís-Montero +5 more
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Self-fertility studies of some sweet cherry (Prunus avium L.) cultivars and selections
Fruit set of two sweet cherry cultivars (Alex' and 'Stella' ) and four Hungarian selections have been studied over two years following open pollination, unassisted self-pollination (autogamy) and artificial self-pollination (geitonogamy).
Zs. Békefi
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The Mating System of the Wild-to-Domesticated Complex of Gossypium hirsutum L. Is Mixed
The domestication syndrome of many plants includes changes in their mating systems. The evolution of the latter is shaped by ecological and genetic factors that are particular to an area.
Rebeca Velázquez-López +7 more
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Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima +3 more
wiley +1 more source

