Results 51 to 60 of about 1,471 (114)

SCSBRS126 Dueto: irrigated rice variety resilient to cold and heat at reproductive stage

open access: yesCrop Breeding and Applied Biotechnology, 2023
SCSBRS126 Dueto is a late-maturing high yield performing cultivar released by Epagri/Embrapa/Udesc. It has high tillering capacity, but poor resistance to lodging, medium resistance to blast, with long, slender grains and good sensory/cooking traits, and
Rubens Marschalek   +20 more
doaj  

High-temperature injury and auxin biosynthesis in microsporogenesis.

open access: yesFrontiers in Plant Science, 2013
Plant reproductive development is more sensitive than vegetative growth to many environmental stresses. With global warming, in particular, plant high temperature injury is becoming an increasingly serious problem.
Atsushi eHigashitani
doaj   +1 more source

Heat shock protein 101 safeguards meiotic thermotolerance of male germlines in rice and Arabidopsis

open access: yesCrop Journal
Heat stress induces severe meiotic defects in plants, leading to significant male sterility and substantial yield losses in crops. However, few genes involved in meiotic thermotolerance have been characterized.
Yunfei Li   +10 more
doaj   +1 more source

Polyamines in pollen: from microsporogenesis to fertilization

open access: yesFrontiers in Plant Science, 2016
The entire pollen life span is driven by polyamine (PA) homeostasis, achieved through fine regulation of their biosynthesis, oxidation, conjugation, compartmentalization, uptake, and release.
Iris eAloisi   +3 more
doaj   +1 more source

Apricot flower bud dormancy: main morphological, anatomical and physiological features related to winter climate influence

open access: yesAdvances in Horticultural Science, 2013
This review examines recent advances regarding flower bud dormancy in apricot, focusing on biological, anatomical, and physiological processes which occur during the induction and depth of dormancy.
R. Viti, S. Bartolini, L. Andreini
doaj   +1 more source

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

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   +1 more source

Quality assessment of pollen of pear genotypes for their use in breeding

open access: yesНовые технологии, 2019
The morphological quality indices of pollen of 14 pear genotypes have been studied in the conditions of the humid subtropics of the south of Russia. Viability and fertility have been determined, and variational curves of pollen grain sizes have been ...
N. S. Kiseleva
doaj   +1 more source

Конкурентное и кооперативное поведение клеток в микроспорогенезе покрытосеменных

open access: yesФактори експериментальної еволюції організмів, 2016
Aim. A comparative cytological analysis of intra- and intertissue cytomictic interactions in early microsporogenesis of mono- and dicotyledonous plants was performed using two cellular systems: microsporocytes and tapetum. Methods.
Е. А. Кравец   +7 more
doaj  

Maize Prolonged Prophase 1 is essential for meiotic progression in pollen mother cells

open access: yesCrop Journal
Meiosis, a critical process for sexual reproduction, requires precise regulation to ensure the correct progression of meiotic stages. In yeast and animals, errors in meiotic recombination and homologous chromosomes synapsis bring a surveillance mechanism
Lingling Pan   +6 more
doaj   +1 more source

Anatomía y desarrollo de la flor estaminada, microsporogénesis y microgametogénesis en especies deLophophytum (Balanophoraceae) en la Argentina

open access: yesBoletín de la Sociedad Argentina de Botánica
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.
Héctor A.  Sato , Ana M. Gonzalez
doaj   +1 more source

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