Results 21 to 30 of about 123 (61)
To clarify events occurring during pollen grain formation in yellow passion-fruit (Passiflora edulis f. flavicarpa), floral buds were collected at different stages of development. After bracket, petal and sepal removal the anthers were fixed, dehydrated,
Margarete Magalhães de Souza +1 more
doaj +1 more source
Microsporogenesis was analyzed in an interspecific hybrid between an artificially tetraploidized sexual accession of Brachiaria ruziziensis (2n=4x=36) and a natural apomictic tetraploid accession of B. decumbens.
Andréa Beatriz Mendes-Bonato +2 more
doaj +1 more source
Anther and pollen development in some species of Poaceae (Poales)
Anther and pollen development were studied in Olyra humilis Nees, Sucrea monophylla Soderstr, (Bambusoideae), Axonopus aureus P. Beauv., Paspalum polyphyllum Nees ex Trin. (Panicoideae), Eragrostis solida Nees, and Chloris elata Desv.
AT. Nakamura +2 more
doaj +1 more source
Chromosome studies on Brazilian cerrado plants
Cerrado is the Brazilian name for the neotropical savanna, which occurs mainly in Brazilian Central Plateau, composed of herbaceous-subshrubby and shrubby-arboreal floras, both of which are heliophilous, highly diverse and regionally differentiated ...
Eliana Regina Forni-Martins +1 more
doaj +1 more source
Resumo: A microsporogênese é o estágio reprodutivo mais afetado pela ocorrência de baixas temperaturas. Este estudo teve como objetivo analisar os efeitos da ocorrência de baixas temperaturas durante o estágio reprodutivo em linhagens promissoras de ...
Diane Simon Rozzetto +4 more
doaj
U. humidicola (Rendle) Morrone & Zuloaga [syn. Brachiaria humidicola (Rendle) Schweick.] é uma espécie forrageira, de origem africana, que se adapta bem a solos pobres e mal drenados como os do Pantanal brasileiro.
Vidal, Ítalo José de Araújo +6 more
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Anther and pollen development were studied in Olyra humilis Nees, Sucrea monophylla Soderstr, (Bambusoideae), Axonopus aureus P. Beauv., Paspalum polyphyllum Nees ex Trin. (Panicoideae), Eragrostis solida Nees, and Chloris elata Desv.
AT. Nakamura +2 more
doaj
Microsporogenesis is the reproductive stage most affected by the occurrence of low temperatures. This study aimed to evaluate the effects of low temperatures during the reproductive stage in inbreed rice lines from Epagri.
Rubens Marschalek +9 more
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Almost 90% of species of the genus Passiflora are native to the American continent, with high commercial value due to the fact that some species are used for human food while others have ornamental and medical qualities.
Paulo Roberto Peres Kiihl +4 more
doaj
Comportamento citológico atípico durante a microsporogênese em Brachiaria ruziziensis e B. decumbens. [PDF]
Em gramíneas forrageiras do gênero Brachiaria, populações poliplóides naturais são abundantes e geralmente apomíticas, enquanto as diploídes, que se reproduzem sexualmente, são raras.
VALLE, C. B. do +3 more
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