Results 61 to 70 of about 18,559 (286)

Badania biologii pyłku wytwarzanego przez kwiaty wiśni zakwitajace w różnych fazach kwitnienia [Studies of the biology of pollen formed by sour cherry flowers flowering in different stages of the blooming period]

open access: yesActa Agrobotanica, 2015
During four years (1971-1974), five sour cherry cultivars were examined for the pollen viability, germination and pollen tube growth. Pollen which was taken from the earliest and the last blooming stages had the smaller viability, germination and the ...
Stanisław Wociór
doaj   +1 more source

Development and Optimization of a Germination Assay and Long-Term Storage for Cannabis sativa Pollen

open access: yesPlants, 2020
Pollen viability and storage is of great interest to cannabis breeders and researchers to maintain desirable germplasm for future use in breeding or for biotechnological and gene editing applications.
Daniel Gaudet   +4 more
doaj   +1 more source

Pollen-specific overexpression of GPT1-eYFP rescues the pollen defects of wrky2 wrky34 double mutant plants.

open access: yes, 2019
(A) Viability (as indicated by PI staining), in vitro germination, and lipid accumulation (as indicated by Nile blue A staining) of pollen grains from wrky2 wrky34 and PLAT52:GPT1-eYFP wrky2 wrky34 plants.
Mengmeng Zhang (1507543)   +8 more
core   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen   +5 more
wiley   +1 more source

UJI VIABILITAS SERBUK SARI SECARA In-Vitro KELAPA (Cocos nucifera L.“Rangda”) DENGAN WAKTU DAN SUHU PENYIMPANAN YANG BERBEDA

open access: yesSimbiosis: Journal of Biological Sciences, 2013
This aims of the research was to determine the structure and pollen viability of RangdaCoconut (Cocos nucifera L. “Rangda”) stored at different time and temperatures. Pollen sampleswere collected from Gianyar, Klungkung and Negara.
Sista Nirmala   +2 more
doaj  

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard   +4 more
wiley   +1 more source

Viability and storage of Myrceugenia euosma (O. Berg) D. Legrand and Siphoneugena reitzii D. Legrand (Myrtaceae) pollen

open access: yesRevista de Ciências Agroveterinárias
This study evaluated aspects of the pollen viability of the species Myrceugenia euosma (O. Berg) D. Legrand and Siphoneugena reitzii D. Legrand (Myrtaceae), both native trees with ornamental, medicinal and industrial potential.
Bruno Jan Schramm Corrêa   +4 more
doaj   +1 more source

Morphology and viability of pollen grains from passion fruit species (Passiflora spp.)

open access: yesActa Botânica Brasílica, 2013
The characterization and viability of pollen grains are useful tools to guide crosses in breeding programs. The objective of this study was to describe the morphological patterns and viability of pollen grains from five accessions of Passiflora edulis f.
Taliane Leila Soares   +4 more
doaj   +1 more source

Optimizing pollencounter for high throughput phenotyping of pollen quality in tomatoes

open access: yesMethodsX, 2020
The macro “PollenCounter” in ImageJ was initially developed to assess pollen viability in grapevine. We set out to see if PollenCounter could be used to assess pollen number and viability in tomatoes.
Mathieu Anatole Tele Ayenan   +5 more
doaj   +1 more source

Screening and optimisation of in vitro pollen germination medium for sweetpotato (Ipomoea batatas)

open access: yesPlant Methods, 2023
Background Sweetpotato is an important vegetable and food crop that is bred through sexual crosses and systematic selection. The use of in vitro germination of sweetpotato pollen to test its viability has important theoretical and practical implications ...
Zongkuan Weng   +8 more
doaj   +1 more source

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