scholarly journals Characterization of Sorghum germplasm for various qualitative traits

2017 ◽  
Vol 9 (2) ◽  
pp. 1002-1007
Author(s):  
Rajani Verma ◽  
B. R. Ranwah ◽  
Baudh Bharti ◽  
Ramesh Kumar ◽  
Ram Kunwar ◽  
...  
Keyword(s):  
Grain Shape ◽  
Leaf Sheath ◽  
College Of Agriculture ◽  
Plant Vigour ◽  
Qualitative Traits ◽  
Glume Colour ◽  
Dark Green ◽  
Endosperm Texture ◽  
Sorghum Germplasm

Present study was performed to characterize 750 germplasm lines with 4 checks namely CSV17, CSV20, CSV27 and CSV21F for various qualitative traits of Sorghum. These 754 genotypes were sown in augmented RBD with 30 replications during Kharif 2014 at Instructional Farm, Rajasthan College of Agriculture, Udaipur. Majority of the accessions showed poor early plant vigour (40.2 %), dark green leaf (88.6 %), non- tan leaf sheath pigmentation (60 %), drooping leaves (100 %), white midrib colour (51.6 %), senescence (60 %), loose panicle density (31.5 %), elliptical panicle shape (66.5 %), straw glume colour (48.2 %), 3/4 glume coverage (42.9 %), absence of awns (59.5 %), creamy straw seed (39.9 %), oval grain shape (48.8 %), medium seed size (43.7 %), non-lustrous seed (62.0 %), intermediate endosperm texture (50.3 %) and bicolor race (49.6 %). Very good early plant vigour, tan type leaf sheath pigmentation, drooping leaf orientation, straw glume colour, ½ glume covering, oval grain shape, intermediate endosperm texture appeared in all the 4 check. The results of this study indicated that considerable genetic diversity exists among the sorghum accessions.

Characterization of β-tubulin 4 regulated by gibberellins in rice leaf sheath

2009 ◽  
Vol 53 (3) ◽  
pp. 422-428 ◽  
Author(s):  
G. Yang ◽  
A. Jan ◽  
S. Komatsu
Keyword(s):  
Leaf Sheath ◽  
Rice Leaf ◽  
Β Tubulin

scholarly journals Dilatometric Characterization of Foundry Sands

2012 ◽  
Vol 12 (2) ◽  
pp. 9-14 ◽  
Author(s):  
M. Břuska ◽  
J. Beňo ◽  
M Cagala ◽  
V Jasinková
Keyword(s):  
Physical Chemistry ◽  
Grain Shape ◽  
Linear Character ◽  
Foundry Sands ◽  
Theoretical Assumptions ◽  
Shape And Size

Dilatometric Characterization of Foundry Sands The goal of this contribution is summary of physical - chemistry properties of usually used foundry silica and no - silica sands in Czech foundries. With the help of dilatometry analysis theoretical assumptions of influence of grain shape and size on dilatation value of sands were confirmed. Determined was the possibility of dilatometry analysis employment for preparing special (hybrid) sands with lower and/or more linear character of dilatation.

scholarly journals Characterization of the ‘Oat-Like Rice’ Caused by a Novel Allele OsMADS1Olr Reveals Vital Importance of OsMADS1 in Regulating Grain Shape in Oryza sativa L.

Rice ◽  
2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Penghui Li ◽  
Hui Li ◽  
Zhijian Liu ◽  
Yong Zhuang ◽  
Ming Wei ◽  
...  
Keyword(s):  
Transgenic Plants ◽  
Point Mutation ◽  
Grain Shape ◽  
Dominant Negative Effect ◽  
Mads Box ◽  
Grain Development ◽  
Seed Setting ◽  
Seed Setting Rate ◽  
Novel Allele

Abstract Background Grain shape is a critical agronomic trait affecting grain yield and quality. Exploration and functional characterization of grain shape-related genes will facilitate rice breeding for higher quality and yield. Results Here, we characterized a recessive mutant named Oat-like rice for its unique grain shape which highly resembles oat grains. The Oat-like rice displayed abnormal floral organs, an open hull formed by remarkably elongated leafy lemmas and paleae, occasionally formed conjugated twin brown rice, an aberrant grain shape and a low seed setting rate. By map-based cloning, we discovered that Oat-like rice harbors a novel allele of OsMADS1 gene (OsMADS1Olr), which has a spontaneous point mutation that causes the substitution of an amino acid that is highly conserved in the MADS-box domain of the MADS-box family. Further linkage analysis indicated that the point mutation in the OsMADS1Olr is associated with Oat-like rice phenotype, and expression analysis of the OsMADS1 by qRT-PCR and GUS staining also indicated that it is highly expressed in flower organs as well as in the early stages of grain development. Furthermore, OsMADS1Olr-overexpressing plants showed similar phenotypes of Oat-like rice in grain shape, possibly due to the dominant negative effect. And OsMADS1-RNAi plants also displayed grain phenotypes like Oat-like rice. These results suggested that OsMADS1Olr is responsible for the Oat-like rice phenotype including aberrant grain shape. Moreover, the expression levels of representative genes related to grain shape regulation were apparently altered in Oat-like rice, OsMADS1Olr-overexpressing and OsMADS1-RNAi transgenic plants. Finally, compared with Oat-like rice, OsMADS1Olr-overexpressing and OsMADS1-RNAi plants, mild phenotype of seed-specific OsMADS1-RNAi transgenic plants indicated that OsMADS1 may has has a direct regulation role in grain development and the grain phenotypes of Oat-like rice, OsMADS1Olr-overexpressing and OsMADS1-RNAi plants are majorly caused by the abnormal lemma and palea development. Conclusions Altogether, our results showed that grain shape and a low seed setting rate of the notable ‘Oat-like rice’ are caused by a spontaneous point mutation in the novel allele OsMADS1Olr. Furthermore, our findings suggested that OsMADS1 mediates grain shape possibly by affecting the expression of representative genes related to grain shape regulation. Thus, this study not only revealed that OsMADS1 plays a vital role in regulating grain shape of rice but also highlighted the importance and value of OsMADS1 to improve the quality and yield of rice by molecular breeding.

scholarly journals Green Synthesis and Characterization of Copper Nanoparticles Using Fortunella margarita Leaves

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4364
Author(s):  
Rutaba Amjad ◽  
Bismillah Mubeen ◽  
Syed Shahbaz Ali ◽  
Syed Sarim Imam ◽  
Sultan Alshehri ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Color Change ◽  
Metal Oxide Nanoparticles ◽  
Visual Observation ◽  
X Ray Diffraction ◽  
Synthesis Of Nanoparticles ◽  
Characteristic Absorption Peak ◽  
Bluish Green ◽  
Dark Green

The use of biomaterials in the synthesis of nanoparticles is one of the most up-to-date focuses in modern nanotechnologies and nanosciences. More and more research on green methods of producing metal oxide nanoparticles (NP) is taking place, with the goal to overcome the possible dangers of toxic chemicals for a safe and innocuous environment. In this study, we synthesized copper nanoparticles (CuNPs) using Fortunella margarita leaves’ extract, which reflects its novelty in the field of nanosciences. The visual observation of a color change from dark green to bluish green clearly shows the instant and spontaneous formation of CuNPs when the phytochemicals of F. margarita come in contact with Cu+2 ions. The synthesis of CuNPs was carried out at different conditions, including pH, temperature, concentration ratio and time, and were characterized with UV-Vis absorption spectra, scanning electron microscope (SEM) and X-ray diffraction (XRD). The UV-Vis analysis reveals the surface plasmon resonance property (SPR) of CuNPs, showing a characteristic absorption peak at 679 nm, while SEM reveals the spherical but agglomerated shape of CuNPs of the size within the range of 51.26–56.66 nm.

CHARACTERIZATION OF SOME QUALITATIVE TRAITS IN DIFFERENT PERILLA CULTIVARS

2012 ◽  
pp. 301-308 ◽  
Author(s):  
L. Martinetti ◽  
A. Ferrante ◽  
A. Bassoli ◽  
G. Borgonovo ◽  
A. Tosca ◽  
...  
Keyword(s):  
Qualitative Traits

scholarly journals The Vesuvianite Gems of the Val d’Ala (Piedmont, Italy)

Minerals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 535
Author(s):  
Franca Piera Caucia ◽  
Luigi Marinoni ◽  
Maurizio Scacchetti ◽  
Maria Pia Riccardi ◽  
Omar Bartoli
Keyword(s):  
Inductively Coupled Plasma ◽  
Major Elements ◽  
Western Alps ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Gran Paradiso ◽  
Dark Green ◽  
Ree Patterns

In Val d’Ala (Western Alps in Piedmont, Italy), the most interesting rocks for mineralogical research are represented by rodingite (rich in mineralized veins and fractures) associated with serpentinite in the eclogitized oceanic crust of Piedmont Zone, south of Gran Paradiso Massif. Among the vein-filling minerals, vesuvianite is well appreciated for its potential as gem-quality materials, even though it has never been characterized in detail. This study provides a gemological characterization of eleven vesuvianite crystals from different localities of the Val d’Ala. The refractive index (1.717–1.708) and density (1.705–1.709) values of our vesuvianite are in the range of those in the literature. Scanning electron microscopy with energy-dispersive spectroscopy (SEM/EDS) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) established that the samples are pretty compositionally homogeneous in terms of major elements, while trace and rare earth elements (REE) contents are more variable. All REE patterns are characterized by pronounced positive Eu anomalies. The variations in color (from olive green to dark green with chocolate (reddish-brown color shades and polychrome bands) are due to the relevant presence of Fe and, to a lesser extent, Ti and Cr. The X-ray powder diffraction (XRPD) analyses and SEM/EDS quantitative study indicate that the other phases associated with vesuvianite are represented by diopside, garnet, clinochlore.

CsNaTe - Darstellung und Charakterisierung von Cäsiumnatriumtellurid / CsNaTe - Preparation and Characterization of Cesium Sodium Telluride

1996 ◽  
Vol 51 (4) ◽  
pp. 605-606 ◽  
Author(s):  
Karsten Fischer ◽  
Elisabeth Feldbaum-Möller ◽  
Petra Vogt ◽  
Volker Winter ◽  
Horst Sabrowsky
Keyword(s):  
Structure Type ◽  
X Ray ◽  
Tetragonal Lattice ◽  
Dark Green

Abstract The dark green compound CsNaTe has been prepared. The characterization by X-ray powder methods leads to a tetragonal lattice (P4/nmm) with a = 530.8 (4), c = 853.2 (1) pm and Z = 2. The structure ist related to the PbFCl structure type.

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