Results 51 to 60 of about 73,698 (304)
The sequence of conceptual information in instruction and its effect on retention [PDF]
, 1991 Two experiments were carried out to study the effect of the sequencing of the information in an instructional program. In both experiments, two different ordering principles were used. These principles were based on the relation between the to be learned
Ranzijn, Frederik J.A.
core +2 more sources
Advancing European Plant Variety Registration: Data‐Driven Insights and Stakeholder Perspectives
Agribusiness, EarlyView.ABSTRACT Efficient plant variety registration is crucial for fostering innovation in the European Union, yet the current regulatory framework is complex and faces calls for reform. This study provides data‐driven evidence to inform the ongoing legislative debate by employing a mixed‐methods approach.
Sergio Urioste Daza +2 more
wiley +1 more source
Effect of low storage temperature on pollen viability of fifteen herbaceous peonies
Biotechnology Reports, 2019 In order to develop rich new varieties of peony flowers and solve the problems associated with non-synchronised flowering, a study was conducted to investigate pollen viability of fifteen herbaceous peony cultivars.
Guangcong Du +7 more
doaj +1 more source
Agronomy, 2021 Among many challenges in chrysanthemum cross-breeding, the access to viable pollen for hybridization of cultivars distant in location and different in flowering time is required.
Natalia Miler, Anita Wozny
doaj +1 more source
The limitations of the methods of identifying the floral source of honeys [PDF]
, 1998 The pollen grains in honey reveal the types of plants that were around when the bees produced the honey, thus it is valid to use melissopalynology to determine the geographical origin of honeys, but there are several reasons why it is less valid for ...
Molan, Peter C.
core +1 more source
In vitro germination and pollen conservation of sorne Musa species [PDF]
, 2011 The yield ofbanana and plantain which is an important food is affected especially by black leaf streak disease. Pollen from resistant wild types is used by conventional breeding to create new hybrids resistant to black leaf streak disease.
Fonbah, Cletus +3 more
core +1 more source
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 +4 more
wiley +1 more source
Flowering phenology and pollen characteristics of cultivated populations of Paeonia ostii ‘Feng dan’ at different altitudes [PDF]
Ciência Rural: From a pollination biology standpoint, this study compared modifications in the flowering phenology, soluble sugar and protein content of pollen, antioxidant enzyme system, and storage traits of five cultivated populations of Paeonia ostii ‘Feng dan ...
Xinwei Li +5 more
doaj +1 more source
Estudio de distintos métodos de conservación de polen de calabacín (Curcubita pepo L.) [PDF]
, 2013 Breeding programmes in zucchini (Cucurbita pepo) are focused in obtaining genetic variability by mutant population induced with chemical agent as ethyl methanesulfonate.
Pomares Viciana, Teresa
core +1 more source
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 +7 more
wiley +1 more source