Results 81 to 90 of about 68,887 (307)
Image analysis in automatic system of pollen recognition
Acta Agrobotanica, 2012 In allergology practice and research, it would be convenient to receive pollen identification and monitoring results in much shorter time than it comes from human identification.
Piotr Rapiejko +3 more
doaj +1 more source
Exploratory Pollen Analysis of Hargrove Lake, Davy Crockett National Forest Houston County, Texas [PDF]
, 2002 The objectives of this exploratory pollen analysis of selected samples from a sediment core taken at Hargrove Lake, Davy Crockett National Forest, Houston County, Texas, are to ascertain the quality of pollen preservation in the lake bottom matrix and to
Kelso, Gerald K.
core +1 more source
Cytoskeleton, EarlyView.ABSTRACT Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large vegetative cell and a small generative cell. Polarized nuclear migration and positioning during PMI are important for successful pollen development ...
Yoko Mizuta +5 more
wiley +1 more source
BMC Plant Biology, 2012 Background The pollen grain contains the male gametophyte that extends a pollen tube that grows through female tissues in order to deliver sperm to the embryo sac for double fertilization. Growing pollen tubes form periodic callose plugs that are thought
Qin Peng +3 more
doaj +1 more source
Effect of temperature on the growth and development of quinoa plants (Chenopodium quinoa Willd.): A review on a global scale [PDF]
, 2020 The increase in temperature and constant changes in climate negatively affects the development of the plants, which has resulted in an alarming situation for many of the different crops of agricultural and food interest.
Bazile, Didier +5 more
core
Angiosperm pollen grains from the Cuayuca Formation (Late Eocene to Early Oligocene), Puebla, Mexico [PDF]
, 2015 Systematic descriptions and illustrations of the best preserved angiosperm pollen grains (Monocotyledonae or Liliopsida: n= 7 and Dicotyledonae or Magnoliopsida: n= 41) recovered from Cuayuca Formation (late Eocene-early Oligocene), Puebla State ...
Martínez Hernández, Enrique +2 more
core +1 more source
Buck Wheat: Nutritional, Bioactive Characteristics, Health Benefits, and Side Effects
Future Postharvest and Food, EarlyView.ABSTRACT Micronutrient deficits have resulted from an over‐reliance on a small number of cereal crops for food security. The agricultural sector faces severe sustainability issues due to the rapid growth of the world's population and sudden climatic changes.
Momina Farooq +2 more
wiley +1 more source
, 2017 A knowledge of pollen functions and its development in the genus Rosa is often of the greatest importance to the rose breeders and scientists when planning a hybridization program and research. The following paragraphs, therefore, brings together all the available scientific information from pollen formation to fertilization and its management.
openaire +2 more sources
Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces
InfoMat, EarlyView.A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley +1 more source
A method to search for optimal field allocations of transgenic maize in the context of co-existence [PDF]
, 2008 Spatially isolating genetically modified (GM) maize fields from non-GM maize fields is a robust on-farm measure to keep the adventitious presence of GM material in the harvest of neighboring fields due to cross-fertilizations below the European ...
Cougnon, Mathias +3 more
core +1 more source