Results 71 to 80 of about 488 (157)

Pollination and floral biology of Adonis vernalis L. (Ranunculaceae) – a case study of threatened species

Acta Societatis Botanicorum Poloniae, 2014
Although the knowledge of pollination systems of rare and threatened species is one of the principles for development of optimal conservation and management strategies, the data about their pollination requirements are scarce or incomplete.
Bożena Denisow, Małgorzata Wrzesień, Anna Cwener   +2 more
doaj   +1 more source

Influence of pollen limitation and inbreeding depression in the maintenance of incomplete dichogamy in Salvia elegans

Ecology and Evolution, 2017
AbstractThe widespread presence of incomplete dichogamy (i.e., partial separation in time between male and female phases) in flowering plants is a long‐standing question in floral evolution. In this study, we proposed four scenarios in which depending on the particular combination of pollen limitation and inbreeding depression, the presence of complete
Víctor Rosas‐Guerrero, Diego Hernández, Eduardo Cuevas   +2 more
openaire   +2 more sources

‘Seneca’ Pecan: A Compact Cultivar for the Northern Growing Region

HortScience, 2022
Xinwang Wang, Warren Chatwin , Keith Kubenka , Angelyn Hilton , Braden Tondre, Tommy Thompson , LJ Grauke   +6 more
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Inflorescences of Cliffortia L. (Rosaceae) and related vegetative branch­ing patterns

Bothalia: African Biodiversity & Conservation, 2003
The inflorescence construction of eight species, representative of the types found in the 119 species of the rosaceous genus Cliffortia L. is described, based on stereo microscopic examination of fresh and dried specimens, combined with extensive field ...
A. C. Fellingham, H. P. Linder
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‘Zuni’ Pecan: A Cultivar of Large Nuts for the Central and Western Growing Regions

HortScience, 2022
Xinwang Wang, Warren Chatwin, Keith Kubenka, Angelyn Hilton , Braden Tondre , Tommy Thompson , LJ Grauke   +6 more
doaj   +1 more source

II.Notes on some recent Researchers regarding Dichogamy and other allied subjects [PDF]

Transactions of the Botanical Society of Edinburgh, 1873
n ...
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Pollen biological characteristics and breeding system of Primulina guizhongensis

Xibei zhiwu xuebao
[Objective] This paper aims to investigate the characteristics of Primulina guizhongensis pollen and the influence of the breeding system on its sexual reproduction, to uncover its reproduction mechanism and providing theoretical references for the ...
HUANG Jiajun, XIE Meishi, JIANG Guiyun, LIU Juanxu, YU Yixun   +4 more
doaj   +1 more source

Annual Variation in Flowering Phenology, Pollination, Mating System, and Pollen Yield in Two Natural Populations of Schima wallichii (DC.) Korth

The Scientific World Journal, 2013
Background. Schima wallichii is a highly valuable tree of tropical forest in north-east Himalaya region that grows naturally in a wide range of altitudes between 750 and 2400 m asl with varying environments.
Vinod Prasad Khanduri, C. M. Sharma, K. S. Kumar, S. K. Ghildiyal   +3 more
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Phenology, pollen synchronization and fruit characteristics of european hazelnut (Corylus avellana L.) cv. tonda de Giffoni in three sites of central Chile

Revista de la Facultad de Ciencias Agrarias, 2019
Phenology, pollen synchronization and fruit characteristics were studied during the season 2011-2012 for European hazelnut (Corylus avellana L.) cv.
Eduardo von Bennewitz, Catalina Ramírez, Diego Muñoz, Rodrigo Cazanga-Solar, Tomas Lošak, Jhonny Edison Alba-Mejía, Iván Maureira-Butler   +6 more
doaj  

Flowering biology and breeding system of Panax notoginseng

Guangxi Zhiwu
Panax notoginseng is a precious traditional Chinese medicine, it faces the challenges of low reproduction rate and extinction of wild resources. In order to explore the characteristics of its flowering biology and breeding system, and to clarify the ...
Flowering biology and breeding system of Panax notoginseng
doaj   +1 more source