Results 41 to 50 of about 14,013 (256)

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

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

American 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, Gashaw T. Abate, Seid Yimam, Rui Benfica, David J. Spielman, Frank Place   +5 more
wiley   +1 more source

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

Plants, 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, Narendra Singh Yadav, Aleksei Sorokin, Andriy Bilichak, Igor Kovalchuk   +4 more
doaj   +1 more source

Aging and longevity in decades‐old genebanked seeds from U.S. endangered plant species: Assessments using survival and RNA integrity assays

American Journal of Botany, EarlyView.
Abstract Premise Seed longevity is critical for successful genebanking, but it is hard to detect or predict. We examined survival of genebanked seeds from species native to the United States to estimate longevity. We tested whether RNA integrity (RIN) can be used to detect aging and predict mortality. Methods Dry seeds from >100 species were stored for
Christina Walters, Katherine D. Heineman, Lisa Hill, Hannah Tetreault, Parker Tyler, Zoe Zingerman, Shaimaa Ibrahim, Joyce Maschinski   +7 more
wiley   +1 more source

Optimizing Wheat Pollen Preservation for Enhanced Viability and In Vitro Germination

Agronomy
Wheat pollen, which is characterized by its short lifespan, exhibits rapid germination after anthesis. The preservation of wheat pollen is contingent upon environmental factors including temperature, relative humidity, light, and wind.
Irum Khan, Muhammad Kashif Naeem, Armghan Shahzad, Zijin Zhang, Jing Chen, Muhammad Sajjad   +5 more
doaj   +1 more source

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]

Acta 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

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

Applications in Plant Sciences, EarlyView.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters, Lisa M. Hill, Katherine D. Heineman, Hannah M. Tetreault, Shaimaa Ibrahim, Katherine Markstein, Cheryl Birker, Kris Freitag, Dustin Wolkis, Michael Kunz, Sheila Murray, Nathaniel Kingsley, Alexandra Seglias, Nicholas Matsumoto, Thomas N. Kaye, Cheryl Peterson, Matthew A. Albrecht, Noah Dell, Stacy Anderson, Steve Blackwell, David Remucal, Wendy Gibble, Anita Tiller, Emily Coffey, Jason Ligon, Laurie Blackmore, Carrie Radcliffe, Heather E. Schneider, Kristen Nelson, David Sollenberger, Jessamine Finch, Kate Wellspring, Robert Jetton, Joyce Maschinski   +33 more
wiley   +1 more source

Determination of Pollen Fertility of Some Cut Rose Varieties in Different Periods

Düzce University Faculty of Forestry Journal of Forestry
In rose breeding by hybridization, the viable pollen and germination rate of the male parent increases the rate of successful pollination. Therefore, a good variety of pollinators is always needed in hybridization studies.
Şüheda Basire Akça Yılmaz, Soner Kazaz   +1 more
doaj   +1 more source

Optimizing pollencounter for high throughput phenotyping of pollen quality in tomatoes

MethodsX, 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, Agyemang Danquah, Charles Ampomah-Dwamena, Peter Hanson, Isaac K. Asante, Eric Yirenkyi Danquah   +5 more
doaj   +1 more source

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

Plant 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, Yitong Deng, Fen Tang, Lukuan Zhao, Lingxiao Zhao, Yuan Wang, Xibin Dai, Zhilin Zhou, Qinghe Cao   +8 more
doaj   +1 more source