Results 21 to 30 of about 293,125 (165)

Identification of chromosome ploidy and analysis of breeding system of different Rosa odorata

open access: yesXibei zhiwu xuebao
[Objective] Rosa odorata is an important germplasm resource of Rosa, which has high value of appreciation and utilization. In order to promote the development and utilization of the germplasm resources, the chromosome ploidy, floral synthesis, and ...
HOU Qiumei   +5 more
doaj   +1 more source

Reproductive success of four species of Eugenia L. (Myrtaceae) Successo reprodutivo de quatro espécies de Eugenia L. (Myrtaceae)

open access: yesActa Botânica Brasílica, 2009
Eugenia uniflora,E. punicifolia,E. neonitida and E. rotundifolia are perennial species, usually shrubs, which occur in the restinga of the Grumari Natural Municipal Park, in western Rio de Janeiro, Brazil.
André Luiz Gomes da Silva   +1 more
doaj   +1 more source

Evolution of Plant Breeding Systems [PDF]

open access: yesCurrent Biology, 2006
Breeding systems are important, and often neglected, aspects of the natural biology of organisms, affecting homozygosity and thus many aspects of their biology, including levels and patterns of genetic diversity and genome evolution. Among the different plant mating systems, it is useful to distinguish two types of systems: 'sex systems ...
openaire   +2 more sources

Pollination and breeding system in Adesmia bijuga Phil. (Fabaceae), a critically endangered species in Central Chile Polinización y sistema reproductivo en Adesmia bijuga Phil. (Fabaceae), una especie en peligro crítico en Chile central

open access: yesGayana: Botanica, 2012
Adesmia bijuga Phil. is an endemic shrub in central Chile, classified as a critically endangered species of plant. After more than 100 years since its original description by R. A.
PERSY GÓMEZ P   +2 more
doaj  

Phenology, reproductive biology and growing degree days of the grapevine ‘Isabel’ (Vitis labrusca, Vitaceae) cultivated in northeastern Brazil

open access: yesBrazilian Journal of Biology
Phenology and reproductive biology of cultivated species are important for the comprehension of the requirements for fruit and seed production and the management of pollinators.
N. A. S. Nunes   +2 more
doaj   +1 more source

Adaptive capacity of female rabbits submitted to a change in breeding practices

open access: yesWorld Rabbit Science, 2016
The aim of this study was to test the consequences of a change in breeding practices on 219 multiparous rabbit does over 2 reproductive cycles (5th and 6th insemination).
M. Theau.Clément   +4 more
doaj   +1 more source

Breeding Systems in Cortaderia (Gramineae) [PDF]

open access: yesEvolution, 1973
Male sterility has long been known in the grass genus Cortaderia and the species have traditionally been described as dioecious (Stapf, 1897; Pilger, 1906; Hitchcock, 1927; Conert, 1961). However, Connor and Penny (1960) described gynodioecism in one New Zealand species, and it was later shown that all New Zealand Cortaderias are gynodioecious, as well
openaire   +2 more sources

Not Only Hummingbirds: Reproductive Biology and Pollinators of the High-Andean Endangered Puya raimondii (Bromeliaceae)

open access: yesInternational Journal of Plant Biology
Puya raimondii, an endangered high-Andean species, exhibits life-history traits that may strongly influence its reproductive strategy; however, its reproductive biology remains poorly understood. Here, we assessed its floral biology, breeding system, and
Fernando H. Calderon-Quispe   +2 more
doaj   +1 more source

BREEDING SYSTEM POLYMORPHISM IN A HETEROSTYLOUS SPECIES [PDF]

open access: yesEvolution, 1976
Heterostylous breeding systems have been the subject of continued interest since the work of Hildebrand (1866, 1871, 1887) and Darwin (1865, 1877) revealed the association of floral heteromorphism with an incompatibility system enforcing outcrossing.
openaire   +2 more sources

The Spring of Systems Biology-Driven Breeding

open access: yesTrends in Plant Science, 2018
Genetics and molecular biology have contributed to the development of rationalized plant breeding programs. Recent developments in both high-throughput experimental analyses of biological systems and in silico data processing offer the possibility to address the whole gene regulatory network (GRN) controlling a given trait. GRN models can be applied to
Lavarenne, J.   +4 more
openaire   +4 more sources

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