Results 61 to 70 of about 1,344 (132)

Wind pollination and propagule formation in Rhizophora mangle L. (Rhizophoraceae): resource or pollination limitation?

open access: yesAnais da Academia Brasileira de Ciências, 2014
Rhizophora mangle is considered as a self-compatible mangrove, and is pollinated by wind and insects. However, there is no information about fruit production by autogamy and agamospermy and on the foraging behavior of its flower visitors.
TARCILA L. NADIA, ISABEL C. MACHADO
doaj   +1 more source

APPLE BREEDING PROGRAMS AND METHODS: THEIR DEVELOPMENT AND IMPROVEMENT

open access: yesВавиловский журнал генетики и селекции, 2015
Long-term studies of apple development features allowed breeding intensification and shortening of the time of cultivar development from 36–48 years to 23–27 or even 13–17 years. It is noted that requirements for cultivar are constantly toughened.
E. N. Sedov
doaj  

Variability of the data indicating the fertility of different plum varieties

open access: yesInternational Journal of Horticultural Science, 2003
Self-fertility and fertility at conditions of open pollination in plum varieties is strictly determined by genetic factors. However, rates of fruit set are highly variable according to growing sites as well as to seasons, which may result from a couple ...
Z. Szabó, J. Nyéki
doaj   +1 more source

A New Breeding Technique for F1 Hybrid Production From Self‐Incompatible Species

open access: yes
Plant Biotechnology Journal, Volume 24, Issue 6, Page 4061-4063, June 2026.
Rowan P. Herridge   +4 more
wiley   +1 more source

Autogamy vs. Allogamy: Biotic-Dependent Populations Reveal Shift in the Reproduction System of an Essentially Autogamous Vanilla

open access: yesDiversity
Flowering plants have evolved a wide range of strategies to avoid self-fertilization. Although allogamy is common among members of the genus Vanilla, V. lindmaniana is widely known for its ability to self-fertilize, resulting in fruit-set rates of 83–100%
Emerson R. Pansarin
doaj   +1 more source

Genetic variability studies for yield and its component traits in newly developed sunflower (Helianthus annuusL.) hybrids

open access: yesElectronic Journal of Plant Breeding, 2020
The present study was conducted in order to estimate the genetic variability and variability parameters among the parental lines and crosses for 18 characters in sunflower.
K. Varalakshmi, S. Neelima, R. Narasimha Reddy and K.N. Sreenivasulu
doaj   +1 more source

Pollinator availability, mating system and variation in flower morphology in a tropical savanna tree

open access: yesActa Botânica Brasílica
Widely distributed organisms face different ecological scenarios throughout their range, which can potentially lead to micro-evolutionary differentiation at specific localities.
André Rodrigo Rech   +3 more
doaj   +1 more source

Estrategia reproductiva de una hierba perenne: Hypoxis decumbens (Hypoxidaceae)

open access: yesRevista de Biología Tropical, 1998
Se estudió la estrategia reproductiva de Hypoxis decumbens L. (Hypoxidaceae), una hierba perenne con flores hermafroditas, para comprobar las relaciones que se establecen entre sistema reproductivo, forma de vida, ambiente, sistema de polinización y ...
Elena Raimúndez U, Nelson Ramirez
doaj  

Reproductive Ecology of Maxillaria carinulata and Maxillaria meridensis (Orchidaceae) in the Andes of Caquetá, Colombia: Breeding System, Floral Visitors, Floral Compounds, and Pollen Transfer

open access: yesEcologies
Maxillariinae is one of the most diverse Neotropical orchid groups, yet little is known about its reproduction and pollination. We studied Maxillaria carinulata and Maxillaria meridensis on the eastern slope of the Cordillera Oriental in Caquetá ...
Laura S. Cupitra-Vargas   +4 more
doaj   +1 more source

Inter-generational nuclear crosstalk links the control of gene expression to programmed genome rearrangement during the Paramecium sexual cycle. [PDF]

open access: yesNucleic Acids Res, 2023
Bazin-Gélis M   +6 more
europepmc   +1 more source

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