Results 61 to 70 of about 68,887 (307)
The Anatomical Record, EarlyView.Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis +4 more
wiley +1 more source
Determination of cardinal temperatures for sugar apple ( Annona squamosa L.)
Ciência e Agrotecnologia, 2016 The sugar apple is highly dependent on the pollination and fruit tree pollen performance is crucial for successful fertilization and fruit set. The objective of this study was to determine the cardinal temperatures for in vitro pollen grains germination ...
Bruno Rafael Alves Rodrigues +5 more
doaj +1 more source
Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Acta Scientiarum: Technology, 2021 The success in the application of artificial pollination techniques, aspects of floral biology should receive special attention, especially regarding the viability studies of pollen grains.
Digelma Camila Barros Araújo +7 more
doaj +1 more source
Effects of Gamma Radiation on Salix nigra Marsh Cuttings [PDF]
, 1985 Dormant cuttings of Salix nigra Marsh, were exposed to gamma radiation from a cobalt-60 source at a dose rate of 1110 roentgens (r) per minute. Exposure doses ranged from 50 r through 100 Kr with 100% mortality at 10 Kr.
Gehring, Roy Z.
core +2 more sources
Developmental biology of dispersed pollen grains
The International Journal of Developmental Biology, 2020 Professor Panchanan Maheshwari served as Professor and Head of the Department of Botany, University of Delhi, from 1950 to 1966 and built an internationally reputed School of integrated plant embryology. Studies carried out during and after Maheshwari’s period from this School have enormously advanced our knowledge of the structural, developmental and ...
Kundaranahalli R, Shivanna +1 more
openaire +3 more sources
Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells
Carbon Energy, EarlyView.This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood +16 more
wiley +1 more source
International Journal of Plant Biology, 2016 In this work we conducted a quantitative analysis of the nuclear DNA-content of developing sperm cells of the plant Brassica campestris L. The sperm cells were in young pollen grain, mature pollen grain and pollen tubes. When generative cells, at the pre-
Hua Deng
doaj +1 more source
Frontiers in Plant Science, 2020 Improving the development of inferior grains is important for increasing maize yield under high-density conditions. However, the effect of micronutrients, especially zinc (Zn), on the development of inferior grains and maize yield under field conditions ...
Dun-Yi Liu +6 more
doaj +1 more source
Palynostratigraphy and palynofacies of the early Eocene Gurha lignite mine, Rajasthan, India [PDF]
, 2016 A 105 m early Eocene section exposed in the Gurha mine in the Nagaur-Ganganagar Basin, Rajasthan, India, archiving remains of equatorial vegetation at a time of extreme global warmth and close to the onset of the India-Eurasia collision, is investigated ...
Aggarwal +50 more
core +1 more source