Results 71 to 80 of about 27,354 (256)
OENO One, 1993 Chez Vitis vinifera L. var. Chardonnay, le développement normal des ovules est de type Polygonum, mais les antipodes sont éphémères. Un grand nombre d'ovules ne peuvent suivre une ontogénie normale et involuent plus ou moins précocement.
Monique Fougère-Rifot +3 more
doaj +1 more source
Apomixis in Genista salzmannii DC. (Fabaceae) [PDF]
, 1991 Genista apomixis is described for the first time in two populations of Genista salzmannii DC.: the first is diploid and the second one tetraploid. There was no female meiosis and the megaspore mother cell functioned as an unreduced megaspore, which led ...
Diana, Silvana +1 more
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Evolution and relationships of the conifer seed cone telemachus: Evidence from the triassic of antarctica [PDF]
, 2010 The seed cone Telemachus is known from several Triassic localities in Gondwana. New specimens from two localities in Antarctica provide additional information about the type species, Telemachus elongatus, based on details of morphology and anatomy ...
Decombeix, Anne-Laure +3 more
core +4 more sources
Taxonomic reappraisal of the mangrove genus Avicennia (Acanthaceae) in India
Nordic Journal of Botany, EarlyView.A taxonomic reappraisal of the mangrove genus Avicennia in India was undertaken through extensive field surveys and critical examination of herbarium specimens. Three taxa, Avicennia alba, Avicennia marina subsp. marina, and Avicennia officinalis, are described in detail. A synonymic list was compiled using the World Checklist of Vascular Plants (WCVP)
Subrata Mondal, Saikat Naskar
wiley +1 more source
PlantsThe third largest angiosperm family, Leguminosae, displays a broad range of reproductive strategies and has an exceptional practical value. Whereas annual legume species are mostly planted as crops, there is a significant interest in breeding and ...
Andrey Sinjushin +2 more
doaj +1 more source
Assessing the Genotypic Differences for Seed Set and Seed Abortion in Tomato Genotypes [PDF]
, 2009 Tomato (_Lycopersicon esculentum_ Mill.) is one of the most popular fruit vegetable around the world. Seed abortion where in only a small proportion of ovules in an ovary develops into matured seeds, is a wide spread phenomenon in multi-ovulated species.
Chalapathy K. Reddy +2 more
core +1 more source
Nordic Journal of Botany, EarlyView.Based on morphological evidence three new deciduous species of Berberis are proposed – Berberis pseudovirescens, Berberis orbicularis and Berberis tawangensis,the types being collected in the Tawang and West Kameng districts of Arunachal Pradesh, India.
Bipankar Hajong +2 more
wiley +1 more source
Optimising the seed production cycle of Delphinium elatum L. : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Plant Biology at Massey University, Palmerston North [PDF]
, 2005 Delphinium elatum L. (Ranunculaceae) hybrids are developed by Dowdeswell's Delphiniums located at 692 Brunswick Road. Wanganui (www.delphinium.co.nz), who grow delphiniums for seed export. Development of new cultivars is important for commercial purposes,
Bedford, Katharine
core
Ovule development: genetic trends and evolutionary considerations [PDF]
, 2009 Much of our current understanding of ovule development in flowering pants is derived from genetic and molecular studies performed on Arabidopsis thaliana.
Kelley, Dior R., Gasser, Charles S.
core +1 more source
Nordic Journal of Botany, EarlyView.Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes +4 more
wiley +1 more source