Probing the responses of barley cultivars (Hordeum vulgare L.) by chlorophyll a fluorescence OLKJIP under drought stress and re-watering

Drought is one of the major factors limiting wheat yield in many developing countries worldwide. Parameters of chlorophyll a fluorescence kinetics under drought stress conditions have been used to characterize dehydration tolerance in wheat. In the present study, a set of 94 doubled haploid lines obtained from Chinese Spring × SQ1 (CSDH), mapped with 450 markers, was evaluated for yield (grain dry weight/main stem ear), number of grains/main stem ear (NG) and chlorophyll a fluorescence parameters (FC) under moderate and severe drought stress, and compared with results for well-watered plants. quantitative trait loci (QTLs) were identified using Windows QTLCartographer version 2.5 software and the results were analysed using single-marker analysis (SMA) and composite interval mapping (CIM). Analysis using SMA and CIM showed mostly similar QTLs for all traits, though more QTLs were identified by SMA than by CIM. The genetic control of yield, NG and FC varied considerably between drought-stressed and non-stressed plants. Although no major QTL co-locations were found for yield and FC using CIM, the co-location of QTLs for NG, yield and Fv/Fm in drought-stressed plants was observed on chromosome 5A using SMA.

Download Full-text

Classification of cultivated barley (Hordeum vulgare). 1. Historical aspects, and phenetic character analysis of some characters by information theory and by spatial autocorrelation

Canadian Journal of Botany ◽

10.1139/b86-368 ◽

1986 ◽

Vol 64 (11) ◽

pp. 2769-2773

Author(s):

Bernard B. Baum

Keyword(s):

Information Theory ◽

Hordeum Vulgare ◽

Spatial Autocorrelation ◽

Theory Model ◽

Kernel Weight ◽

Hordeum Vulgare L ◽

Department Of Agriculture ◽

Character Analysis ◽

Barley Cultivars

A brief historical sketch of the classification of barley (Hordeum vulgare L.) cultivars is presented along with reference to key reviews on this subject. Characters, utilized in the comprehensive study on the barley cultivars of North America by Aberg and Wiebe (U.S. Department of Agriculture Technical Bulletin 942), were subjected to a series of phenetic character analyses using an information theory model and a spatial autocorrelation model. The ranking of the 48 characters in order of their importance (for classification and identification purposes) from the character analysis by information theory was compared with the previous rating of characters made by Aberg and Wiebe and was found to differ significantly. Numerous trials of character analysis by spatial autocorrelation using various Minkowski distances, setting various values among three parameters, never yielded results comparable with those obtained by Aberg and Wiebe. Among those trials, a few combinations of values for the three parameters (X, Y, and Z) yielded results comparable with those obtained with character analysis by information theory. Those same combinations of values were found by Estabrook and Gates (Taxon, 33: 13–25) in their study of Banisteriopsis in 1984, where they also developed the method of character analysis by spatial autocorrelation. Kernel weight was found to be the most important character.

Download Full-text

Characterizing the molecular structure features of newly developed hulless barley cultivars with altered carbohydrate traits (Hordeum vulgare L.) by globar-sourced infrared spectroscopy in relation to nutrient utilization and availability

Journal of Cereal Science ◽

10.1016/j.jcs.2013.12.013 ◽

2014 ◽

Vol 60 (1) ◽

pp. 48-59 ◽

Cited By ~ 22

Author(s):

Ling Yang ◽

John J. McKinnon ◽

David A. Christensen ◽

Aaron D. Beattie ◽

Peiqiang Yu

Keyword(s):

Molecular Structure ◽

Infrared Spectroscopy ◽

Hordeum Vulgare ◽

Nutrient Utilization ◽

Hordeum Vulgare L ◽

Hulless Barley ◽

Barley Cultivars

Download Full-text

Light response of barley ( Hordeum vulgare L.) and corn ( Zea mays L.) as affected by drought stress, plant genotype and N fertilization

Biocatalysis and Agricultural Biotechnology ◽

10.1016/j.bcab.2017.05.006 ◽

2017 ◽

Vol 11 ◽

pp. 1-8 ◽

Cited By ~ 3

Author(s):

A. Soleymani

Keyword(s):

Zea Mays ◽

Drought Stress ◽

Hordeum Vulgare ◽

Zea Mays L ◽

Light Response ◽

N Fertilization ◽

Plant Genotype ◽

Hordeum Vulgare L

Download Full-text

A comparative study of initiation and development of embryogenic callus from haploid embryos of several barley cultivars. II. Cytophotometry of embryos and callus

Canadian Journal of Botany ◽

10.1139/b86-277 ◽

1986 ◽

Vol 64 (9) ◽

pp. 2107-2112 ◽

Cited By ~ 5

Author(s):

L. S. Kott ◽

S. Flack ◽

K. J. Kasha

Keyword(s):

Hordeum Vulgare ◽

Comparative Study ◽

Ploidy Level ◽

Embryogenic Callus ◽

Hordeum Vulgare L ◽

Barley Cultivars ◽

Haploid Embryos ◽

Diploid Level

Cells of haploid barley embryos (Hordeum vulgare L. 'Bruce', 'Perth', and 'Klages') and callus cells originating from embryos were cytophotometrically examined to determine the ploidy level. Specific embryo tissues regularly exhibited predictable ploidies and smaller embryos had a higher percentage of haploid cells than larger embryos of the same age. The predominantly haploid cells of the scutellar epidermis of the embryo initiated callus which generally, at least initially, was haploid. Monitoring of the ploidy evolution of these haploid calli showed that over a 6-month period each line exhibited its own unique rate of polyploidization, although lines of the same cultivar showed similar trends. Accumulation of cells at the diploid level was often a characteristic of these cultures.

Download Full-text