搜索结果: 1-15 共查到“作物学 Pollen”相关记录27条 . 查询时间(0.145 秒)
GhGPAT12/25 Are Essential for the Formation of Anther Cuticle and Pollen Exine in Cotton (Gossypium hirsutum L.)
GhGPAT12 GhGPAT25 陆地棉 旁系同源基因
2024/4/16
GhGPAT12和GhGPAT25为一对位于陆地棉A12/D12染色体上编码甘油-3-磷酸酰基转移酶（GPAT）的旁系同源基因。GhGPAT12/25在发育早期的花药中特异表达，其转录本主要富集于绒毡层和花粉外壁。真核表达实验表明GhGPAT12/25具有sn-2酰基转移酶活性。CRISPR/Cas9介导的基因敲除实验发现GhGPAT12和GhGPAT25存在功能冗余，两基因的同时敲除导致彻底的雄...
SCR-22 of pollen-dominant S haplotype class is recessive to SCR-44 of pollen-recessive S haplotype class in Brassica rapa
SCR-22 pollen-dominant S haplotype SCR-44 Brassica rapa
2023/8/9
SCR/SP11 encodes the male determinant of recognition specificity of self-incompatibility (SI) in Brassica species and is sporophytically expressed in the anther tapetum. Based on dominance relationshi...
Dihaploid induction in tetraploid durum wheat (Triticum durum L.) using pollen of Imperata cylindrica
2,4-dichlorophenoxyacetic acid (2,4-D) haploid induction pseudoseed formation wide hybridization
2015/12/29
Doubled haploidy breeding protocols have revolutionized the varietal development programmes in bread wheat, however, the protocols have not proved much efficient in durum wheat. Presently, the durum w...
Ultrastructure of Inoculated Anthers in Relation to the Frequency of Induction of Pollen Callus in Anther Culture of Oryza sativa L
Anther Culture Oryza sativa L Rice Ultrastructure
2009/8/6
The formation of pollen callus was induced when rice anthers, which contained microspores in the mid-uninucleate and late-uninucleate stage, were cultured. The ultrastructure of the microspores was al...
Sterility Caused by Cooling Treatment at the Flowering Stage in Rice Plants:III. Establishment of a method of in vitro pollen germination
Boric acid Incubation temperature In vitro germination Pollen Rice
2009/8/6
Rice pollen grains germinated more than 80% with low variation (standard deviation less than 10%) and their pollen tubes elongated to more than 150μm within one hour with a simple medium composed of 1...
Male Sterility Caused by Cooling Treatment at the Young Microspore Stage in Rice Plants:XXX. Relation between fertilization and the number of engorged pollen grains among spikelets cooled at different pollen developmental stages
Anther Cool injury Cool temperature Microspore Pollen Rice Sterility
2009/8/6
Cooling treatments at different stages of pollen development lowered the percentage of fertilized spikelets through decreasing the number of engorged pollen grains per anther at anthesis. Cooling duri...
Light Microscopic Observations on Pollen and Anther in Rice (Oryza sativa L.):II. Stages from early microspore to mature pollen
Development Germ pore Light microscopy Microspore Mitosis Pollen
2009/8/4
Development of pollen cells as well as the fate of tapetal cells were studied by the glycol methacrylate semithin method for light microscopy. Sections including artificially produced images of pollen...
Influence of Nitrogen Application on Anther Length, Anther Width and Number of Engorged Pollen Grains as Characters Related to Cooling Injury in Rice Plants
Anther legth Anther width Basally applied nitrogen Cooling injury Cooling tolerance Number of engorged pollen grains
2009/7/16
Anther length, anther width, and number of engorged pollens were reported to have a relationship to cooling injury of rice. The effects of nitrogen application on anther size and number of pollens wer...
Identification of Parent-Offspring Correlation and Presumption of Pollen Parent in Lotus with ISSR Markers
Presumption Parent-Offspring Identification Pollen Parent
2009/7/13
Four intraspecific hybrids of Nelumbo nucifera, 3 interspecific hybrids from N. nucifera and N. lutea, 69 N. nucifera and 1 N. lutea cultivars were used for the identification of parent-offspring rela...
Labor-saving Preparation Method of Pollen Suspension for Artificial Pollination of Kiwifruit
Actinidia deliciosa anthesis extender ‘Hayward’
2009/7/8
A new labor-saving method for preparing pollen suspension was developed for spray pollination of kiwifruit. Fresh anthers were dried on paper for anthesis. The dried anthers were directly suspended in...
RESEARCH NOTEDevelopment of Random-mated Populations Using Bulked Pollen Methodology：Cotton as a Model
Random-mated Populations Bulked Pollen Methodology Cotton
2009/4/30
Random mating has been used successfully to break linkages in cross-pollinated crops. In self-pollinated crops, however, the requirements for cross-pollination can markedly influence the feasibility o...
DEFINITION OF MAIN POLLEN SEASON USING A LOGISTIC MODEL
irborne pollen logistic regression main pollen season pollen emission model
2010/12/23
This paper proposes a method to unify the defi nition of the main pollen season based on statistical analysis. For this, an aerobiological study was carried out in Porto region (Portugal), from 2003-2...
ESTIMATION OF POLLEN AND SEED PRODUCTION OF COMMON RAGWEED IN FRANCE
Ambrosia artemisiifolia pollen seed invasive plant
2010/12/23
Common ragweed (Ambrosia artemisiifolia L.) is an invasive weed of fi eld crops and human-disturbed habitats in Europe. As well as in its natural range (North America), common ragweed is a threat to h...
AIRBORNE ALLERGENIC POLLEN IN NATURAL AREAS:HORNACHUELOS NATURAL PARK, CORDOBA, SOUTHERN SPAIN
aerobiology pollen allergy natural areas rural areas
2010/12/23
The present study shows the results of monitoring the atmospheric pollen in the atmosphere of an area of natural vegetation, the Hornachuelos Natural Park, Cordoba,southern Spain, during a six years (...
ALLERGY TO PERIWINKLE POLLEN (CATHARANTHUS ROSEUS G. DON.)
aeroallergen allergen characterization Catharanthus roseus pollen
2010/12/23
Catharanthus roseus G. Don. (CR) or periwinkle plants are widely grown/ cultivated as garden plants in the tropics and subtropics. In spite of its predominantly entomophilous nature, CR pollen had bee...