Results 21 to 30 of about 13,795 (256)

Pollen Dispersion, Pollen Viability and Pistil Receptivity in Leymus chinensis [PDF]

open access: yesAnnals of Botany, 2004
Leymus chinensis is an economically and ecologically important grass that is widely distributed across eastern areas of the Eurasian steppe. A major problem facing its propagation by man is its low sexual reproductivity. The causes of low fecundity are uncertain, largely because many aspects of the reproductive biology of this species remained unknown ...
Zehao, Huang   +3 more
openaire   +2 more sources

Intra-inflorescence pollen viability in accessions of Brachiaria ruziziensis

open access: yesActa Scientiarum: Biological Sciences, 2014
Knowledge about the pollen viability is important to ensure success in controlled hybridizations and, consequently, support breeding programs. The aims of this study were to evaluate the pollen viability in progenies of artificially induced tetraploid ...
Cristina Maria Pinto de Paula   +3 more
doaj   +1 more source

POLLEN VIABILITY IN QUINCE CULTIVARS

open access: yesJournal of Agricultural, Food and Environmental Sciences, 2018
Pollen viability of eight quince cultivars (ʻLeskovackaʼ, ʻVranjskaʼ, ʻMoravaʼ, ʻPazardzijskaʼ, ʻHemusʼ, ʻAsenicaʼ, ʻPortugalʼ and ʻTriumphʼ), was studied in the two-year period (2011-2012). Testing of pollen viability was performed using two methods: the staining of pollen with acetocarmine (indirect method) and pollen germination in vitro with ...
Radović, Aleksandar   +4 more
openaire   +2 more sources

Different storage temperatures and times on pollen quality in cut rose varieties

open access: yesOrnamental Horticulture, 2022
Pollen parent is one of the most important factors affecting the seed set in conventional breeding. Pollen quality of pollen parents must be known for success in breeding programs.
Selin Seyhan Korkut   +2 more
doaj   +1 more source

Pollen Viability in Rosa

open access: yesHortScience, 1984
Abstract The viability of fresh pollen from 6 Rosa species (Rosa spinosissima L., R. fedtschenkoana Regel, R. pendulina L., R. arkansana Porter, R. Carolina L., R. virginiana Miller), one botanical variety (R. spinosissima altaica Rehd.) and 3 cultivars (‘Betty Bland’, ‘George Will’, ‘Prairie Princess’) were evaluated.
Hugh M. Pearson, Patricia M. Harney
openaire   +1 more source

Higher Temperature at Lower Elevation Sites Fails to Promote Acclimation or Adaptation to Heat Stress During Pollen Germination

open access: yesFrontiers in Plant Science, 2018
High temperatures associated with climate change are expected to be detrimental for aspects of plant reproduction, such as pollen viability. We hypothesized that (1) higher peak temperatures predicted with climate change would have a minimal effect on ...
Lluvia Flores-Rentería   +5 more
doaj   +1 more source

090 Pollen Viability in Inland Saltgrass [PDF]

open access: yesHortScience, 1999
Distichlis spicata var. stricta (Torrey) Beetle is a native grass that tolerates salt, high pH, and some heavy metals. It has been proposed for use in several challenging environments, including mine spoils and salt-impacted areas of golf courses. But, its widespread use has been hindered by several factors, one of which is poor seed set.
Scott Reid   +2 more
openaire   +1 more source

In vitro pollen germination and pollen viability study in brinjal [PDF]

open access: yes, 2022
Abstract For hybrid seed production, it is prerequisite to know the floral biology of the crop and pollen biology is an integral part of flower biology of any crop to understand artificial hybridization more efficiently. After pollination, germination of the viable pollen is important for proper fertilization of ovary and to develop optimum ...
A.V. Ginoya   +2 more
openaire   +1 more source

Metabolomic and transcriptomic analyses reveal that sucrose synthase regulates maize pollen viability under heat and drought stress

open access: yesEcotoxicology and Environmental Safety, 2022
Maize pollen is highly sensitive to heat and drought, but few studies have investigated the combined effects of heat and drought on pollen viability. In this study, pollen's structural and physiological characteristics were determined after heat, drought,
Hongwei Li   +11 more
doaj   +1 more source

Pollen Viability of Aeschynanthus tricolor Hook. [PDF]

open access: yesJournal of Tropical Life Science, 2017
Aeschynanthus (Gesneriaceae) is climbing or trailing epiphytes from the tropical forests of South-East Asia. Several species are widely cultivated for their attractive flowers, which usually scarlet with long corolla tubes and probably bird pollinated.This study was carried out on Aeschynanthus tricolor Hook.
Vitri Garvita Gandadikusumah   +2 more
openaire   +2 more sources

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