Results 41 to 50 of about 1,617 (146)

Spikelet sterility in rice genotypes affected by temperature at microsporogenesis

Revista Brasileira de Engenharia Agrícola e Ambiental
This study evaluated the effect of temperatures during the phase of microsporogenesis on spikelet sterility of paddy rice and identified genotypes tolerant to low temperatures at this growth stage.
Natalia M. de Souza, Rubens Marschalek, Luis Sangoi, Francieli S. Weber   +3 more
doaj   +1 more source

Влияние цитомиксиса на ход микроспорогенеза и образование нередуцированных пыльцевых зерен у однодольных

Фактори експериментальної еволюції організмів, 2017
Aim. Despite significant progress in the investigation of cytomixis its functional role and effect on the course of meiosis as well as mechanisms of 2n pollen grains formation is still not completely clear.
E. A. Kravets, S. H. Plohovskaya, I. I. Horyunova, A. I. Emets, Ya. B. Blume   +4 more
doaj   +1 more source

Comparative insights into molecular pathways influencing germline development in early‐divergent angiosperms

The Plant Journal, Volume 125, Issue 2, January 2026.
SUMMARY The molecular and genetic mechanisms regulating female germline development remain largely unknown in basal and early‐divergent angiosperms. This contrasts with recent progress in model eudicots such as Arabidopsis thaliana and monocots, such as rice, barley, and maize. In this study, we investigate the genetic pathway governing female germline
Jorge Lora, Matthew R. Tucker, Neil J. Shirley, Chao Ma, José I. Hormaza   +4 more
wiley   +1 more source

CARACTERIZACION MORFOLOGICA Y CROMOSOMICA DE COMMELINA BENGHALENSIS L. (COMMELINACEAE) DE ARGENTINA MORPHOLOGICAL AND CHROMOSOMAL CHARACTERIZATION OF COMMELINA BENGHALENSIS L. (COMMELINACEAE) FROM ARGENTINA

Gayana: Botanica, 2009
Commelina benghalensis es una hierba pequeña, nativa de Africa y Asia tropical, aunque en la actualidad crece en casi todo el mundo. En América se la reporta creciendo en campo abierto, borde de bosques y áreas cultivadas (sur de USA, México, Antillas ...
Mauro Grabiele, Ana I Honfi, Marina Grabiele, Humberto J Debat, Julio R Daviña   +4 more
doaj  

Irregularities in the development of male and female gametophytes in the greenhouse carnation (Dianthus caryophpllus L. cv. William Sim.)

Acta Agrobotanica, 2015
It was found that numerous teratological transformations of the pistils and stamens account for the complete or partial female and male sterility in D. caryaphyllus L. cv. William Sim.
M. A. Zenkteler, E. Hauzińska, J. Dmochowska   +2 more
doaj   +1 more source

Influence of Foliar Application of Boron and Humic Acid on Yield of Black Gram at Acid Soil of Moulvibazar

International Journal of Agronomy, Volume 2026, Issue 1, 2026.
Black gram (Vigna mungo L.) productivity in the acidic soils of northeastern Bangladesh is constrained by micronutrient deficiency and poor nutrient availability. However, evidence on the combined foliar use of boron and humic acid under such conditions remains limited. A field experiment was conducted at Moulvibazar using a split‐plot with four levels
Md. Abdul Mazed Miah, Md Sarowar Alam, S. M. Kamran Ashraf, Saleha Khatun Ripta, Md. Shaheenuzzamn, Md Haider Hossain, Nidhi Chaudhary   +6 more
wiley   +1 more source

Chemical mutagenesis in head cabbage (Brassica oleracea var.capitata L.): III effect of ethyl methane sulphonate on mycosporogenesis and pollen fertility [PDF]

Selekcija i Semenarstvo, 2006
The aim of present investigation was to study the effect of different ethyl methane sulfonate (EMS) concentrations (0.5, 0.6 and 0.7%) on microsporogenesis and on the expression of pollen fertility in M1 plants, obtained from treated cabbage seeds ...
Nikolova Vesselina, Antonova Galina, Tomlekova Nasia, Petkova Valentina   +3 more
doaj  

Meiotic irregularities associated to cytomixis in Buddleja iresinoides (Griseb.) Hosseus. (Buddlejaceae) and Castilleja arvensis Schltdl. & Cham. (Orobanchaceae)

Caryologia, 2019
The current paper analyzes the male meiotic behavior in wild populations of Buddleja iresinoides and Castilleja arvensis from Piedmont areas of the Northwest Region of Argentina. Castilleja arvensis showed tetraploid number of chromosome of 2n = 24.
Aldo Ruben Andrada, Valeria de los Ángeles Páez, M.S. Caro, P. Kumar   +3 more
doaj   +1 more source

Oregon Wolfe barley genetic stocks – Research and teaching tools for next generation scientists

Journal of Plant Registrations, Volume 19, Issue 3, September/December 2025.
Abstract The Oregon Wolfe Barley (OWB) mapping population (Reg. no. MP‐4, NSL 554937 MAP) is a resource for genetics research and instruction. The OWBs are a set of doubled haploid barley (Hordeum vulgare L.) lines developed at Oregon State University from the F1 of a cross between Dr. Robert Wolfe's dominant and recessive marker stocks.
Margaret R. Krause, Juan David Arbelaez, Åsmund Asdal, Ramzi Belkodja, Nancy Boury, Victoria C. Blake, Patrick J. Brown, Ana Casas, Luis Cistué, Alba Farré‐Martínez, Scott Fisk, Gregory S. Fuerst, Estela Giménez, Carla Guijarro‐Real, Katy Guthrie, Margaret Halstead, Laura Helgerson, Hiroshi Hisano, Ernesto Igartua, Morten Lillemo, Marina Martínez‐García, Mariona Martínez‐Subirà, Susan McCouch, Laurie McGhee, Travis Nickols, Nick Peters, Raymond Porter, Ignacio Romagosa, Anja Karine Ruud, Kazuhiro Sato, Silvio Salvi, Giuseppe Sangiorgi, Rebekka Schüller, Taner Z. Sen, José Miguel Soriano, Robert M. Stupar, To‐Chia Ting, Kelly Vining, Maria von Korff, Agatha Walla, Diane R. Wang, Robbie Waugh, Roger P. Wise, Robert Wolfe, Eric Yao, Patrick M. Hayes   +45 more
wiley   +1 more source

Dynamic patterns of repeats and retrotransposons in the centromeres of Humulus lupulus L.

New Phytologist, Volume 247, Issue 6, Page 2766-2780, September 2025.
Summary The centromere has a conserved function across eukaryotes; however, the associated DNA sequences exhibit remarkable diversity in both size and structure. In plants, some species possess well‐defined centromeres dominated by tandem satellite repeats and centromeric retrotransposons, while others have centromeric regions composed almost entirely ...
Lucie Horáková, Pavel Jedlička, Radim Čegan, Pavla Navrátilová, Hiroyuki Tanaka, Atsushi Toyoda, Takehiko Itoh, Takashi Akagi, Eiichiro Ono, Vojtěch Hudzieczek, Josef Patzak, Jan Šafář, Roman Hobza, Václav Bačovský   +13 more
wiley   +1 more source