Results 1 to 10 of about 89 (87)

Late-acting self-incompatible system, preferential allogamy and delayed selfing in the heteromorphic invasive populations of Ludwigia grandiflora subsp. hexapetala

open access: yesPeer Community Journal, 2022
Breeding system influences local population genetic structure, effective size, offspring fitness and functional variation. Determining the respective importance of self- and cross-fertilization in hermaphroditic flowering plants is thus important to ...
Luis O Portillo Lemus   +2 more
exaly   +3 more sources

Allogamy-Autogamy Switch Enhance Assortative Mating in the Allotetraploid Centaurea seridis L. Coexisting with the Diploid Centaurea aspera L. and Triggers the Asymmetrical Formation of Triploid Hybrids [PDF]

open access: yesPLoS ONE, 2015
Hybridization between tetraploids and their related diploids is generally unsuccessful in Centaurea, hence natural formation of triploid hybrids is rare. In contrast, the diploid Centaurea aspera and the allotetraploid C.
Maria Ferriol   +2 more
exaly   +2 more sources

Yam (Dioscorea rotundata Poir.) Displays Prezygotic and Postzygotic Barriers to Prevent Autogamy in Monoecious Cultivars

open access: yesAgronomy, 2022
Cultivated yam (D. rotundata) is a staple tuber crop in West Africa whose sexual reproduction control remains largely unknown despite its importance for plant breeding programs. In this paper, we compared self-pollination, intracultivar cross-pollination
Narcisse Denadi   +6 more
doaj   +1 more source

Pollination strategy of Gennaria diphylla (Orchidaceae) on the Canary Islands and on Madeira

open access: yesMediterranean Botany, 2022
Gennaria diphylla (Link) Parl. is a terrestrial, inconspicuous green orchid. Its distribution includes the central and western Mediterranean region as well as the Canary Islands and Madeira. Investigations on its pollination biology are scarce.
Jean Claessens   +5 more
doaj   +1 more source

Reproductive Biology of the Two Varieties of Anacyclus pyrethrum L.—Anacyclus pyrethrum var. pyrethrum (L.) Link and Anacyclus pyrethrum var. depressus (Ball.) Maire—An Endemic Endangered Species

open access: yesPlants, 2022
The reproductive system is essential for the structuring and transmission of genetic diversity. Understanding the reproductive biology of threatened endemic species is considered to be a crucial element for the implementation of effective conservation ...
Fatima Zahra Jawhari   +9 more
doaj   +1 more source

The Ecology of Autogamy in Wild Blueberry (Vaccinium angustifolium Aiton): Does the Early Clone Get the Bee?

open access: yesAgronomy, 2020
Wild blueberry, Vaccinium angustifolium Aiton, for the most part requires cross-pollination. However, there is a continuum across a gradient from zero to 100% in self-compatibility. We previously found by sampling many fields that 20–25% of clones during
Francis A. Drummond, Lisa J. Rowland
doaj   +1 more source

Pulasan [(Nephelium ramboutan-ake (Labill.) Leenh.] fruit trees: variations in flower morphology, and associated differences in pollination type

open access: yesInternational Journal of Plant Biology, 2016
Pulasan (Nephelium ramboutan-ake) is a species of Sapindaceae which has hermaphrodite and staminate flowers on different trees. Morphological flower structures and pollination types of the pulasan fruit tree have not previously been reported thoroughly ...
Nina Ratna Djuita   +3 more
doaj   +1 more source

Investigation of the Breeding Mechanism of African Yam Bean [Fabaceae] (Sphenostylis stenocarpa Hochst. Ex. A. Rich) Harms

open access: yesNotulae Scientia Biologicae, 2018
The many reported inherent nutritional potential in African yam bean (Sphenostylis stenocarpa (Hochst. Ex. A. Rich.) Harms) seem to provide platform for the need of its genetic improvement.
Daniel Babasola ADEWALE   +1 more
doaj   +1 more source

Extent of cross-fertilization in Orobanche cumana Wallr.

open access: yesBiologia Plantarum, 2013
Sunflower broomrape (Orobanche cumana Wallr.) is considered a self-fertilizing species, but there is no indication as to whether it is strictly self-fertilized or that it presents some extent of cross-fertilization.
M. I. Rodríguez-Ojeda   +3 more
doaj   +1 more source

Pollination Ecology of Sabatia Campenstris Nutt. (Gentianaceae)

open access: yesOklahoma Native Plant Record, 2016
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
doaj   +1 more source

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