scholarly journals QTL Mapping and Phenotypic Variation for Seedling Vigour Traits in Barley (Hordeum vulgare L.)

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1149
Author(s):  
Ludovic J. A. Capo-chichi ◽  
Sharla Eldridge ◽  
Ammar Elakhdar ◽  
Takahiko Kubo ◽  
Robert Brueggeman ◽  
...  
Keyword(s):  
Grain Yield ◽  
Biomass Yield ◽  
Selection Process ◽  
Dry Weight ◽  
Leaf Biomass ◽  
Dart Markers ◽  
Hordeum Vulgare L ◽  
Seedling Vigour ◽  
Seed Vigour ◽  
Significant Qtls

Seed vigour is considered a critical stage for barley production, and cultivars with early seedling vigour (ESV) facilitate rapid canopy formation. In this study, QTLs for 12 ESV-related traits were mapped using 185 RILs derived from a Xena x H94061120 evaluated across six independent environments. DArT markers were used to develop a genetic map (1075.1 cM; centimorgans) with an average adjacent-marker distance of 3.28 cM. In total, 46 significant QTLs for ESV-related traits were detected. Fourteen QTLs for biomass yield were found on all chromosomes, two of them co-localized with QTLs on 1H for grain yield. The related traits: length of the first and second leaves and dry weight of the second leaf, biomass yield and grain yield, had high heritability (>30%). Meanwhile, a significant correlation was observed between grain yield and biomass yield, which provided a clear image of these traits in the selection process. Our results demonstrate that a pleiotropic QTL related to the specific leaf area of the second leaf, biomass yield, and grain yield was linked to the DArT markers bPb-9280 and bPb-9108 on 1H, which could be used to significantly improve seed vigour by marker-assisted selection and facilitate future map-based cloning efforts.

scholarly journals EFFECT OF PRIMING WITH SILVER FIR AND OREGANO ESSENTIAL OILS ON SEED GERMINATION AND VIGOUR OF SILENE SENDTNERI

2021 ◽  
Vol 50 (1) ◽  
pp. 27-32
Author(s):  
Erna Karalija ◽  
Fatima Pustahija ◽  
Adisa Parić
Keyword(s):  
Essential Oils ◽  
Water Content ◽  
Germination Rate ◽  
Photosynthetic Pigment ◽  
Dry Weight ◽  
Seed Priming ◽  
Silver Fir ◽  
Seedling Vigour ◽  
Seed Vigour ◽  
Oregano Oil

UDK: 582.661.51:631.53.027]:547.913 In order to investigate the effects of seed priming with silver fir and oregano essential oils on certain important seedling characteristic and seed vigour of interesting endemic and horticultural species Silene sendtneri, an experiment was conducted based on randomized completely design with three replications. Traits such as germination rate, water content, dry weight, vigour index and photosynthetic pigments were analysed. Results revealed that the seedlings obtained with priming seeds showed increased growth, water content, vigour and photosynthetic pigment contents but decreased germination rate and dry weight compared with that obtained with non-primed seeds. Analysis of seed priming effects had demonstrated even germination rate is smaller the seedling vigour is slightly higher especially with all oregano oil treatments. We suggest that oregano oil has a potential as a priming agent for improvement of seedling synchrony, although at lower rate of germination.

A reappraisal of stem reserve contribution to grain yield in spring barley (Hordeum vulgare L.)

1982 ◽  
Vol 98 (2) ◽  
pp. 347-355 ◽  
Author(s):  
R. W. Daniels ◽  
M. B. Alcock ◽  
D. H. Scarisbrick
Keyword(s):  
Grain Yield ◽  
Spring Barley ◽  
Dry Weight ◽  
Reserve Capacity ◽  
Hordeum Vulgare L ◽  
Grain Yields ◽  
Plant Parts ◽  
Commercial Practice ◽  
Barley Cultivars ◽  
Stem Reserves

SUMMARYPre-anthesis stem reserve contribution to grain yield was assessed in two spring barley cultivars of contrasting height. It was greatest in the taller, but final grain yields were similar. Partitioning of total reserve capacity to various plant parts showed that the leaf and sheath below the peduncle were most important, followed by stem internodes which had increasing reserve capacity up to internode 4.It is suggested that stem reserves are valuable for yields commonly achieved in U.K. commercial practice.High grain yields were associated with large positive increases in stem dry weight after anthesis. This would indicate that the source capacity to boost yield is more than proportional to that required to fill the grain alone.

scholarly journals Major QTLs for seedling traits in barley using a DArT-based linkage map

2019 ◽  
Author(s):  
Ludovic Capo-chich ◽  
Sharla Eldridge ◽  
Ammar Elakhdar ◽  
Toshihiro Kumamaru ◽  
Anthony O. Anyia
Keyword(s):  
Selection Process ◽  
Seed Vigor ◽  
Seedling Vigour ◽  
Significant Qtls ◽  
Seedling Traits ◽  
Adjacent Marker ◽  
Pleiotropic Qtl ◽  
High Heritability ◽  
Early Seedling ◽  
Marker Distance

AbstractSeed vigor is considered as the most critical stage for barley production, and cultivar with high early seedling vigour (ESV) allow plants to form a canopy more quickly. In this study, the QTLs of seedling vigour related-traits were investigated using 185 RILs derived from Xena and H94061120 using DArT approach. In total, 46 significant QTLs for ESV related-traits were detected. The total map length was 1075.1 cM with an average adjacent-marker distance of 3.28 cM. Fourteen QTLs for BY were found on all chromosomes, two of them co-located with QTLs on 1H for GY. The related-traits; LL1, LL2, LA1 and LDW1 had high heritability (>60%). Meanwhile, a significant correlation was observed between GY and BY, which provide the clear image of these traits in the selection process. Our results demonstrate that a pleiotropic QTL related to SLA2, BY, and GY was linked to to the DArT markers bPb-9280 and bPb-9108 on 1H, which could be used to significantly improve the seed vigor by marker-assisted selection and possible future map-based cloning of the gene of intrest.

scholarly journals Weed-Competitive Ability of Teff (Eragrostis tef (Zucc.) Trotter) Varieties

Agronomy ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 108 ◽  
Author(s):  
Haftamu Gebretsadik Gebrehiwot ◽  
Jens Bernt Aune ◽  
Jan Netland ◽  
Ole Martin Eklo ◽  
Torfinn Torp ◽  
...  
Keyword(s):  
Grain Yield ◽  
Weed Management ◽  
Competitive Ability ◽  
Biomass Yield ◽  
Dry Weight ◽  
The Other ◽  
Eragrostis Tef ◽  
Economic Returns ◽  
Methods Development ◽  
Hand Weeding

Teff is a staple and well adapted crop in Ethiopia. Weed competition and control have major effects on yields and economic returns of the crop in the country. Among the weed management methods, development and use of weed competitive teff varieties remain the cheapest and most sustainable weed management option. Ten teff varieties were tested for their weed competitive ability in two locations. Treatments were applied using a split plot design with three blocks at each location for two consecutive seasons. Hand weeding and non-weeded treatments were applied to whole plot treatments with teff varieties assigned as split plots within the whole plot. The main objective was to determine relative competitive ability among teff varieties. Results showed that teff varieties showed significant variation in their weed competitive abilities. The varieties ‘Kora’ and ‘DZ-Cr-387’ significantly reduced weed density, dry weight, and cover more than the other teff varieties. They also had the lowest yield losses with a loss of 6% in biomass yield and 18% in grain yield recorded from ‘Kora’ and a loss of 17% in biomass yield and 21% in grain yield recorded from ‘DZ-Cr-387’. Therefore, they showed the highest weed competitive ability compared to the other varieties.

Influence of soil pH and climate on the tolerances of barley and wheat to chlorsulfuron

1990 ◽  
Vol 30 (5) ◽  
pp. 629 ◽  
Author(s):  
D Lemerle ◽  
AR Leys ◽  
CR Kidd ◽  
BR Cullis
Keyword(s):  
Grain Yield ◽  
Soil Ph ◽  
Climatic Factors ◽  
Acid Soil ◽  
Acid Soils ◽  
Dry Weight ◽  
Triticum Aestivum L ◽  
Annual Rainfall ◽  
Yield Reduction ◽  
Hordeum Vulgare L

The effects of soil pH and seasonal conditions on the responses of barley (Hordeum vulgare L.) and wheat (Triticum aestivum L.) to chlorsulfuron were investigated at 3 sites in southern New South Wales in 1986, 1987 and 1988. The sites varied in soil pH (4.3-6.2) and annual rainfall (360-560 mm). In addition to the variation in soil pH between sites, 2 surface pH levels were obtained at each site by the addition of lime. The effect of post-emergence applications of 7.5, 15.0, 22.5, 30.0 and 37.5 g a.i./ha chlorsulfuron on the yield of weed-free barley and wheat varied with season, site and the addition of lime. The yield reduction was greatest in 1986, and the extent of the reduction was always greater in barley than wheat. In 1986, a recommended rate of chlorsulfuron (15 g a.i./ha) significantly (P<0.05) reduced the grain yield of barley at all sites by up to 18% and of wheat by up to 13%. Therefore, the reduced tolerance of barley and wheat to chlorsulfuron in some seasons was not restricted to the acid soils. Significant lime x chlorsulfuron interactions occurred with barley in 3 of the 9 trials, but the interactions were not consistent. At Ariah Park in 1986, grain yield reductions were greatest in unamended soils, while at both Ariah Park and Goolgowi in 1987, grain yield reductions were greatest with the limed plots. There were no significant interactions for wheat. In pot trials the effect of chlorsulfuron on the shoot dry weight of barley varied with soil type. However, there was no direct relationship between soil pH and dry weight reduction. When the pH of an acid soil was amended by liming to give soils with pH of 4.1-7.3, there was a trend to more damage at pH values of 5-6. With 4 soils of different pH and texture, there was less damage in the barley grown in soils of pH 7.3 and 7.4 than in soils of pH 4.1 and 6.0. While these results suggest that soil pH affects the tolerance of barley to chlorsulfuron, it is likely that soil pH is of less importance than other edaphic or climatic factors.

Influence of Seed Biopriming with Microbial Inoculants on Seed Quality Parameters in Soybean [Glycine max (L.) Merril]

2020 ◽  
Author(s):  
Pramod Sharma ◽  
Arun Bhatt ◽  
Rajesh Kanwar
Keyword(s):  
Seed Germination ◽  
Seed Quality ◽  
Dry Weight ◽  
Positive Influence ◽  
Quality Parameters ◽  
Quality Parameter ◽  
Seedling Vigour ◽  
Seed Vigour ◽  
Seedling Length ◽  
Vigour Index

The present investigation was carried out in the Department of Seed Science and Technology, College of Forestry, Ranichauri, Tehri Garhwal, Uttarakhand during 2015. A laboratory experiment was conducted to find out the influence of bio-priming on seed germination and seedling vigour. Seed germination was reported maximum for Psf-173 (93.66%) while minimum was reported for control (65.66%). Seed vigour parameter viz. root length (11.01 cm), shoot length (7.96 cm), seedling length (18.98 cm), fresh weight (8.00 g) and dry weight (1.31 g), vigour index I (1666.80) and vigour index II (115.56) was found higher for PSB treatment. Shilajeet variety had recorded significant higher values for most of the germination and vigour parameters. Shilajeet bio-primed with PSB attained higher values for majority of the quality parameters. Under laboratory condition results suggested that seed germination and seed vigour were greatly affected by different bio-agents. Among all the bio-agents, PSB showed positive influence on most of the quality parameter. However, other bio-agents had also showed significant effect over control.

scholarly journals Organic Seed Hydration-Dehydration Techniques Improve Seedling Quality of Organic Tomatoes

2016 ◽  
Vol 44 (2) ◽  
pp. 399-403 ◽  
Author(s):  
H. Özkan SIVRITEPE ◽  
Nuray SIVRITEPE
Keyword(s):  
Seed Quality ◽  
Germination Rate ◽  
Seed Viability ◽  
Dry Weight ◽  
Seed Moisture Content ◽  
Seedling Vigour ◽  
Seed Vigour ◽  
Tomato Production ◽  
Tomato Seeds ◽  
And Performance

The use of pre-sowing organic hydration-dehydration techniques to improve quality and performance of organic seeds has already been lacking in the literature as well as in the organic farming regulations of different countries. Hence, this study was conducted to investigate the effects of organic hydration (hydropriming and organic priming) and dehydration treatments on germination and early seedling growth in organic tomato seeds. Following each priming treatment, the seeds were surface dried and divided into two sub-groups. First part of the seeds was taken to the germination tests immediately while the second part was dried back until the original seed moisture content was reached before the germination tests were set up. Then, responses of organic tomato seeds to organic hydration and dehydration treatments were observed on the bases of viability (normal germination rate) and different vigour parameters such as mean germination time, germination index, seedling dry weight and seedling vigour index. When the overall data were assessed, the best results were obtained from the hydropriming and organic priming with 250 ppm seaweed extract solution followed by both dehydration treatments in organic tomato seeds. Consequently, these results suggested that hydropriming and organic priming could be used both in seed and seedling industries to improve organic seed quality and performance. Furthermore, the results indicated that the addition of these organic hydration-dehydration protocols to the current procedures of the regulations of organic tomato production could be a useful strategy.Key words: Lycopersicon esculentum, Ascophyllum nodosum, hydropriming, organic priming, seed viability, seed vigour

RELATIONSHIPS BETWEEN VEGETATIVE GROWTH, GRAIN YIELD AND GRAIN PROTEIN CONTENT IN SIX WINTER BARLEY CULTIVARS

1985 ◽  
Vol 65 (3) ◽  
pp. 523-532 ◽  
Author(s):  
L. F. GARCIA DEL MORAL ◽  
J. M. RAMOS ◽  
L. RECALDE
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Protein Content ◽  
Nitrogen Fertilizer ◽  
Dry Weight ◽  
Winter Barley ◽  
Grain Weight ◽  
Hordeum Vulgare L ◽  
Vegetative Period ◽  
Barley Protein

The relationship between the protein content of grain, plant grain yield and yield components (number of ears per plant, number of grains per ear, and 1000-grain weight) was determined for six cultivars of winter barley, four six-rowed (Hordeum vulgare L.) and two two-rowed (H. distichon L.), grown in Granada (Spain) during 1979, 1980 and 1981. Each cultivar was grown with two levels of nitrogen fertilizer (25 and 40 kg/ha) applied both at seeding and as a top-dressing. Protein content of the grain, grain yield and number of ears per plant varied significantly with genotype, level of nitrogen fertilizer applied at seeding and year. Protein content of the grain was positively correlated with plant grain yield. Both factors were correlated principally with the number of ears per plant, and to a lesser extent with grains per ear and grain weight. The protein content and grain yield depended on the crop dry weight or biomass during the vegetative period (source capacity) which was in turn, related to the leaf area index.Key words: Barley, protein content, grain yield, Hordeum vulgare L., Hordeum distichon L.

DEFOLIATION ENHANCES GREEN FORAGE PERFORMANCE BUT INHIBITS GRAIN YIELD IN BARLEY (HORDEUM VULGARE L.)

2015 ◽  
Vol 52 (3) ◽  
pp. 391-404
Author(s):  
XIAODONG CHEN ◽  
BIN ZHAO ◽  
LIANG CHEN ◽  
RUI WANG ◽  
CHANGHAO JI
Keyword(s):  
Grain Yield ◽  
Calcium Content ◽  
Dry Weight ◽  
Kernel Weight ◽  
Forage Yield ◽  
Hordeum Vulgare L ◽  
Barley Cultivars ◽  
Growing Seasons ◽  
Grain Number Per Spike ◽  
One Year

SUMMARYTo evaluate the effects of defoliation on green forage performance and grain yield (GY) variation in barley, five barley genotypes were imposed on three levels of defoliation treatments over two consecutive growing seasons in this study. The results indicated that green forage yields were significantly improved by repeated defoliation. The traits of green forage quality, including the ratio of dry weight to fresh weight, crude ash and calcium content were improved, while crude protein and crude fat were reduced, and crude fiber and phosphorus contents appeared not to be influenced by repeated defoliation. Plant height (PH), GY and other yield components, grain number per spike and thousand kernel weight, were significantly reduced by defoliation over the two growing seasons, while internode length below spike was less affected. Reduction in spike length and the number of spikes per plant were identified in only one year. Correlation analysis revealed that only PH exhibited a positive correlation with GY. Effects of genotype, interaction between genotype and defoliation, and environments on changes of forage yield and quality and GY were also discussed. Our current work provides a feasible approach to select elite barley cultivars with optimal defoliation treatments for both forage and grain uses in barley breeding programme.

Using AMMI approach to delineate genotype by environment interaction and stability of barley (Hordeum vulgare L.) genotypes under northern Indian shivalik hill conditions

2020 ◽  
Vol 80 (03) ◽  
Author(s):  
Om Prakash Yadav ◽  
A. K. Razdan ◽  
Bupesh Kumar ◽  
Praveen Singh ◽  
Anjani K. Singh
Keyword(s):  
Hordeum Vulgare ◽  
Grain Yield ◽  
Principal Component ◽  
Genotype By Environment Interaction ◽  
Environment Interaction ◽  
Hordeum Vulgare L ◽  
Genotype By Environment ◽  
Biplot Analysis ◽  
Principal Component Axis ◽  
Ammi Analysis

Genotype by environment interaction (GEI) of 18 barley varieties was assessed during two successive rabi crop seasons so as to identify high yielding and stable barley varieties. AMMI analysis showed that genotypes (G), environment (E) and GEI accounted for 1672.35, 78.25 and 20.51 of total variance, respectively. Partitioning of sum of squares due to GEI revealed significance of interaction principal component axis IPCA1 only On the basis of AMMI biplot analysis DWRB 137 (41.03qha–1), RD 2715 (32.54qha–1), BH 902 (37.53qha–1) and RD 2907 (33.29qha–1) exhibited grain yield superiority of 64.45, 30.42, 50.42 and 33.42 per cent, respectively over farmers’ recycled variety (24.43qha–1).

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