Results 21 to 30 of about 19,459 (297)
Pollen grain recognition through deep learning convolutional neural networks [PDF]
, 2022 Palynology is the study of pollen, in particular, the pollen’s grain type, but the tasks of classification and counting of pollen grains are highly skilled and laborious. Despite the efforts made during the last decades, the manual classification process
Monteiro, Fernando C.
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Segmenting 20 Types of Pollen Grains for the Cretan Pollen Dataset v1 (CPD-1)
Applied Sciences, 2021 Pollen analysis and the classification of several pollen species is an important task in melissopalynology. The development of machine learning or deep learning based classification models depends on available datasets of pollen grains from various plant
Nikos Tsiknakis +6 more
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The effects of nucleotype and genotype upon pollen grain development in Hyacinth and Scilla [PDF]
, 1982 In pollen grains within anthers of a triploid Hyacinthus orientalis the average duration of the mitotic cycle and the average size of pollen grains are directly proportional to the nuclear DNA amount. The average length of chromosomes at metaphase of the
Rees, H., Karp, A., Jewell, A. W.
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Preliminary studies on mustard taxonomy based on pollen morphology
浙江大学学报. 农业与生命科学版, 2006 Pollen grains of 17 mustard subspecies were examined under scanning electron microscope. The result showed that the pollen shapes were nearly spherical, or spheroidal, or super-spheroidal from the equatorial view, depending on cultivars of mustard.
MENG Qiu-feng +3 more
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Toward in vitro fertilization in Brachiaria spp. [PDF]
, 2010 Brachiaria are forage grasses widely cultivated in tropical areas. In vitro pollination was applied to accessions of Brachiaria spp. by placing pollen of non-dehiscent anthers on a solid medium near isolated ovaries.
Willemse, M.T.M. +6 more
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Disturbances in microsporogenesis and pollen grain development in Gagea lutea (L.) Ker. Gaw.
Acta Agrobotanica, 2012 The meiotic division of microsporocytes and pollen grain development in Gagea lutea (L.) Ker.-Gaw. (Liliaceae) with fluorescence microscope (excitation light 400 nm) was observed after squashing the anthers in DAPI solution (fluorochrom dying DNA). Up to
Ewa Szczuka +4 more
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Messenger RNas : their utilization and degradation during pollen germination and tube growth
Acta Societatis Botanicorum Poloniae, 2014 During pollen germination and tube growth at least 230 new proteins are synthesized, as determined by 35S-methionime labeling and two dimensional gel electrophoretic analysis of the labeled proteins.
Joseph P. Mascarenhas, Joann Mermelstein
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Pollen grain analysis and the SBgLR accumulation in pollen grain. [PDF]
, 2013 A and B, I2-KI staining of pollen grain. A, WT; B, OE25. Bar = 100 µm. C, Statistical data of I2-KI staining rate.
Xin Qi (177590) +3 more
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Acta Societatis Botanicorum Poloniae, 2015 The ultrastructure of pollen grain surface in allotetraploid petunias was analyzed by scanning electron microscopy. The pollen grain wall is developed into characteristic pattern of convulations.
S. Muszyński +3 more
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Electronic Journal of Biotechnology, 2018 Background: Pollen development is an important reproductive process that directly affects pollen fertility and grain yield in rice. Argonaute (AGO) proteins, the core effectors of RNA-mediated silencing, play important roles in regulating plant growth ...
Min Yao +5 more
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