Results 21 to 30 of about 1,617 (146)

Disturbances in microsporogenesis and pollen grain development in Gagea lutea (L.) Ker. Gaw.

open access: yesActa Agrobotanica, 2012
The meiotic division of microsporocytes and pollen grain development in Gagea lutea (L.) Ker.-Gaw. (Liliaceae) with fluorescence microscope (excitation light 400 nm) was observed after squashing the anthers in DAPI solution (fluorochrom dying DNA). Up to
Ewa Szczuka   +4 more
doaj   +1 more source

Microsporogenesis of Apricot Cultivars in Hungary

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2013
Like all phenological processes, microsporogenesis is mainly determined genetically, but its phenotypical expression is greatly influenced by environmental factors, particularly the temperature.
Veronika HAJNAL   +4 more
doaj   +1 more source

Variations of total protein content and protein synthesis during microsporogenesis in Larix europaea L.

open access: yesActa Societatis Botanicorum Poloniae, 2014
The variations of the total protein content and protein synthesis were analyzed in successive stages of microsporogenesis in Larix europaea L. Pure fractions of microsporocytes containing the cells in successive phases of meiosis and fractions of the ...
Wiesława B. Chwirot   +1 more
doaj   +1 more source

Esterilidade de espiguetas e produção de grãos de genótipos de arroz irrigado submetidos a baixas temperaturas na microsporogênese

open access: yesAgropecuária Catarinense, 2019
Resumo - Baixas temperaturas reduzem o rendimento do arroz, especialmente quando ocorrem na microsporogênese da cultura. Este trabalho objetivou identificar genótipos tolerantes ao estresse ocasionado pelo frio na microsporogênese.
Francieli Weber Stürmer   +3 more
doaj   +1 more source

RETAMA CAPACITY ASSESSMENT FERTILE (Spartium junceum) [PDF]

open access: yes, 2022
      En el presente estudio se han establecido comparaciones entre el modelo estándar de la gametogénesis masculina o microsporogénesis para plantas angiospermas, que sigue una pauta o regla de formación que puede ser monitoreada, y ...
Suasnabar Astete, Carlos   +1 more
core   +2 more sources

CARACTERIZACION MORFOLOGICA Y CROMOSOMICA DE COMMELINA BENGHALENSIS L. (COMMELINACEAE) DE ARGENTINA [PDF]

open access: yes, 2020
Commelina benghalensis es una hierba pequeña, nativa de Africa y Asia tropical, aunque en la actualidad crece en casi todo el mundo. En América se la reporta creciendo en campo abierto, borde de bosques y áreas cultivadas (sur de USA, México, Antillas ...
Daviña,Julio R   +4 more
core   +2 more sources

Cytogenetic studies in the Eragrostis curvula Complex

open access: yesBothalia: African Biodiversity & Conservation, 1977
Cytogenetic studies were undertaken in the  Eragrostis curvula Complex. Three plants were studied at each of 16 collecting points. The overall morphology and embryo sac development of all plants were evaluated, while the chromosome number and ...
T. B. Vorster
doaj   +1 more source

Estudios cromosómicos en Acmella bellidioides (Sm.) R.K.Jansen (Asteraceae) del nordeste de Argentina

open access: yes, 2020
Acmella bellidioides es una hierba perenne pequeña, que crece naturalmente en las provincias del nordeste de Argentina, en Brasil, Paraguay y Uruguay.
Daviña,Julio R   +2 more
core   +1 more source

Microsporogénesis y ultraestructura de los granos de polen de la mora andina Rubus glaucus (Rosaceae) [PDF]

open access: yes
Resumen Introducción: Los estudios sobre la microsporogénesis de Rubus glaucus son inexistentes y poco es conocido sobre la ultraestructura del polen.
Cuarán,Viviana-Lucia   +5 more
core   +1 more source

Advancing Thermotolerance in Beans: Integrating Physiology, Genomics, and Breeding for Climate Adaptation

open access: yesLegume Science, Volume 8, Issue 3, September 2026.
ABSTRACT Rising global temperatures increasingly threaten bean production and the food security of millions of people who depend on these protein‐rich legumes. Heat stress during the reproductive stages induces pollen sterility, flower abscission, and disruptions in source–sink relationships, resulting in yield losses of 30%–40% or more when critical ...
Aastha Sharda   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy