Results 11 to 20 of about 1,617 (146)

Comportamiento meiótico de diferentes especies de lulo, Solanum sp [PDF]

open access: yesActa Agronómica, 2010
Se realizó un análisis del comportamiento meiótico de las especies de lulo S. hirtum, S. quitoense y S. sessiliflorum, siguiendo la metodología convencional para los estudios de microsporogénesis.
Nancy Maricela Pareja Ordóñez   +3 more
doaj   +3 more sources

MICROSPOROGÉNESIS DE TRES ESPECIES DEL SUBGÉNERO PASSIFLORA (PASSIFLORA, PASSIFLORACEAE) DE PARAGUAY [PDF]

open access: yesDarwiniana, 2016
El presente trabajo tuvo por objeto caracterizar cariológicamente las especies del género Passiflora L., subgénero Passiflora, del Distrito Félix Pérez Cardozo, Guairá, Paraguay.
Claudia Pereira Sühsner   +3 more
doaj   +3 more sources

Structure of staminate flowers, microsporogenesis, and microgametogenesis in Helosis cayennensis var. cayennensis (Balanophoraceae) [PDF]

open access: yesAnales del Jardín Botánico de Madrid, 2013
We analyzed the microgametogenesis and microsporogenesis of the male flowers of the holoparasitic Helosis cayennensis (Sw.) Spreng. var. cayennensis using optical and scanning electron microscopy.
Ana María González   +2 more
doaj   +2 more sources

Microsporogénesis y ultraestructura de los granos de polen en la planta del cacao, Theobroma cacao (Malvaceae) [PDF]

open access: yes, 2023
Introducción: No conocemos estudios sobre la microsporogénesis de la planta de cacao, y poco se sabe sobre la ultraestructura de sus granos de polen. Objetivo: Describir la microsporogénesis y ultraestructura de los granos de polen en T. cacao.
Viviana-Lucia Cuarán   +14 more
core   +1 more source

Microsporogénesis y micromorfología del polen de la planta Alcea rosea (Malvaceae) [PDF]

open access: yes, 2021
Introduction: Studies on microsporogenesis, micromorphology and structure of pollen grains in Malvaceae are scarce. Objectives: To describe the process of microsporogenesis and micromorphological aspects of pollen grains in A. rosea.
Zarate, Diego A   +17 more
core   +1 more source

High Temperature Has Negative Impact on Pollen Development in Chili Pepper (Capsicum annuum L.) cv. Tanjung-2

open access: yesJurnal Ilmu Pertanian Indonesia, 2020
The development of male reproductive organ in plants is seriously affected by the adverse abiotic stresses. In this study, we investigated pollen development, particularly at microsporogenesis and micro gametogenesis stages of chili pepper (Capsicum ...
Iriawati, Isqim Oktaviani, Ahmad Faizal
doaj   +1 more source

The relation of meiotic behaviour to hybridity, polyploidy and apomixis in the Ranunculus auricomus complex (Ranunculaceae)

open access: yesBMC Plant Biology, 2020
Background Hybridization and polyploidization are powerful evolutionary factors that are associated with manifold developmental changes in plants such as irregular progression of meiosis and sporogenesis.
Birthe H. Barke   +3 more
doaj   +1 more source

Anatomía y desarrollo de la flor estaminada, microsporogénesis y microgametogénesis en especies de lophophytum (balanophoraceae) en la Argentina [PDF]

open access: yes, 2013
Se estudió la anatomía y desarrollo de la flor estaminada, microsporogénesis y microgametogénesis de Lophophytum leandrii y Lophophytum mirabile subsp. bolivianum, a fin de aportar datos para el conocimiento y taxonomía del género.
González, Ana María   +1 more
core   +2 more sources

Microsporogenesis of peach (Prunus persica L. Batsch) varieties

open access: yesInternational Journal of Horticultural Science, 2002
Bud dormancy during winter is a critical factor in peach production in Hungary. The yield is determined basically by the survival rate of flower buds during winter frosts and by their ability to develop normal floral organs.
L. Szalay, B. Timon, Z. Szabó, J. Papp
doaj   +1 more source

The development rhythm of the flower-bud in some Papilionaceae species. Part II. Microsporogenesis, macrosporogenesis and early gametogenesis in Pisum sp. forms against the background of bud development

open access: yesActa Societatis Botanicorum Poloniae, 2015
The process of microsporogenesis and development of pollen grains was found to occur in an identical rhythm in 14 examined forms of Pisum sp. as compared with the development of the perianth. In the 3 forms studied in detail: Pisum sativum L.
W. Wojciechowska
doaj   +1 more source

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