scholarly journals Some physiological changes in Waldsteinia trifolia (Roch.) leaves in different months of the year

2012 ◽  
Vol 61 (2) ◽  
pp. 85-91
Author(s):  
Renata Wojciechowska ◽  
Tadeusz Kobyłko ◽  
Anna Hostyńska
Keyword(s):  
Chlorophyll A ◽  
Electrolyte Leakage ◽  
Dry Matter ◽  
Climatic Conditions ◽  
Matter Content ◽  
Carotenoid Content ◽  
Anthocyanin Content ◽  
Dry Matter Content ◽  
Leaf Discs ◽  
High Dry Matter

The study concerned an evergreen herbal plant <i>Waldsteinia trifolia</i> Roch. This species can be found more and more often in garden plantings in Poland. The aim of the study was to estimate the content of photosynthetic pigments, anthocyanins and dry matter as well as the permeability of cytoplasmatic membranes of <i>Waldsteinia</i> leaves. Plants grew in an ornamental plant collection at the premises of the Faculty of Horticulture of the Agricultural University in Kraków. The study was conducted in 2006 and 2007 in the following months: March, May, June, September, October and November. The permeability of cytoplasmatic membranes was estimated based on electrolyte leakage from leaf discs at 20°C in relation to total electrolytes in the tissue after unfreezing. The first days with temperature drops down to around 0°C in autumn resulted in a decrease in chlorophyll a, b and carotenoid content, but significantly increased anthocyanin content. The ratio of chlorophyll a to b and the ratio of total chlorophylls to carotenoids did not change in particular months. In both years of study, similar changes in dry matter content of the <i>Waldsteinia</i> leaves were observed. Dry matter content significantly increased in June and November and decreased in May and October. In June and in autumn, after first slight frosts, an increase of electrolyte leakage from the leaf discs was observed. However, high dry matter content (40.3%) was accompanied by lower permeability of the cytoplasmatic membranes of the leaves after winter during March. These results have shown good adaptation of <i>Waldsteinia trifolia</i> plants to the climatic conditions in Poland.

scholarly journals CHANGE OF MAINTENANCE OF DRY SUBSTANCES AND STARCH IN TUBERS OF POTATO IN DEPENDENCE ON TERMS OF TILL

2019 ◽  
pp. 80-83
Author(s):  
V. K. Serderov ◽  
T. G. Chanbabaev ◽  
D. V. Serderova
Keyword(s):  
Dry Matter ◽  
Starch Content ◽  
Potato Industry ◽  
Climatic Conditions ◽  
Matter Content ◽  
Dry Matter Content ◽  
Potato Tubers ◽  
Scientific Center ◽  
High Dry Matter ◽  
High Level

Potatoes is the most important food crop, one of the main crops grown throughout the world. A way to improve the profitability of the potato industry is processing. The processing production requires special varieties of potatoes. Tests were carried out by the department of vegetable breeding «Agrarian scientific center of republic of Dagestan» in 2017-2018 with the purpose of study the effect of soil-climatic conditions of Dagestan highlands on dry matter and starch content in potato tubers for production of processed potato products. Processing of potatoes is one of the methods to increase profitability of industry. One of the quality indexes of the use of potato varieties for their processing is high level of dry matter and starch. As a result of the research, the following varieties were identified: high-yielding are Impala, Irbit, Zhukovsky Ranniy, Manifesto, Matushka, Nevsky, Primabella, Rosara, Silvana, Spiridon and Udacha; high dry matter content are Alena, Vektor, Dzhokonda, Desiree, Matushka, Nart, Primabella and Rossi; high in starch: Desiree - 23%, Vector and Primabella - 22.2% each. The results of the present investigation revealed that climate of the mountainous areas of Dagestan republic promotes the increase of dry matter and starch content in potato tubers by 3-4%.

scholarly journals Genome-wide association mapping of correlated traits in cassava: dry matter and total carotenoid content

2017 ◽  
Author(s):  
Ismail Y. Rabbi ◽  
Lovina I. Udoh ◽  
Marnin Wolfe ◽  
Elizabeth Y. Parkes ◽  
Melaku A. Gedil ◽  
...  
Keyword(s):  
Association Mapping ◽  
Negative Correlation ◽  
Dry Matter ◽  
Matter Content ◽  
Genome Wide Association ◽  
Carotenoid Content ◽  
Dry Matter Content ◽  
Root Crop ◽  
Genome Wide ◽  
The Tropics

ABSTRACTCassava (Manihot esculenta (L.) Crantz) is a starchy root crop cultivated in the tropics for fresh consumption and commercial processing. Dry matter content and micronutrient density, particularly of provitamin A – traits that are negatively correlated – are among the primary selection objectives in cassava breeding. This study aimed at identifying genetic markers associated with these traits and uncovering the potential underlying cause of their negative correlation – whether linkage and/or pleiotropy. A genome-wide association mapping using 672 clones genotyped at 72,279 SNP loci was carried out. Root yellowness was used indirectly to assess variation in carotenoid content. Two major loci for root yellowness was identified on chromosome 1 at positions 24.1 and 30.5 Mbp. A single locus for dry matter content that co-located with the 24.1 Mbp peak for carotenoid content was identified. Haplotypes at these loci explained a large proportion of the phenotypic variability. Evidence of mega-base-scale linkage disequilibrium around the major loci of the two traits and detection of the major dry matter locus in independent analysis for the white- and yellow-root subpopulations suggests that physical linkage rather that pleiotropy is more likely to be the cause of the negative correlation between the target traits. Moreover, candidate genes for carotenoid (phytoene synthase) and starch biosynthesis (UDP-glucose pyrophosphorylase and sucrose synthase) occurred in the vicinity of the identified locus at 24.1 Mbp. These findings elucidate on the genetic architecture of carotenoids and dry matter in cassava and provides an opportunity to accelerate genetic improvement of these traits.CORE IDEASCassava, a starchy root crop, is a major source of dietary calories in the tropics.Most varieties consumed are poor in micronutrients, including pro-vitamin A.These two traits are governed by few major loci on chromosome one.Genetic linkage, rather than pleiotropy, is the most likely cause of their negative correlation.

scholarly journals Quality characterization, phenolic and carotenoid content of new orange, cream and yellow-fleshed sweetpotato genotypes

2021 ◽  
Vol 39 (3) ◽  
pp. 299-304
Author(s):  
Lucimeire Pilon ◽  
Jaqueline S Guedes ◽  
Bruna S Bitencourt ◽  
Raphael Augusto de C Melo ◽  
Larissa PC Vendrame ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Ipomoea Batatas ◽  
Dry Matter ◽  
Matter Content ◽  
Soluble Solids ◽  
Carotenoid Content ◽  
Total Phenolic ◽  
Dry Matter Content ◽  
Total Carotenoids ◽  
Β Carotene

ABSTRACT Sweetpotato (Ipomoea batatas) is a root crop grown in many countries. This tuberous root is a source of energy, nutrients, and phytochemicals. In this study, bioactive compounds and physical and physicochemical qualities of sweetpotato genotypes were evaluated. Eight new genotypes of sweetpotato produced by Embrapa Hortaliças (orange-fleshed: MD09026-OF and MD09024-OF; cream-fleshed: MD09011-CF, MD09004-CF, MD10039-CF, and MD10004-CF; yellow-fleshed: MD09017-YF and MD12002-YF) and two cultivars used as controls (Beauregard and Brazlândia Roxa) were evaluated for color, soluble solids, dry matter, phenolic compounds, total carotenoids and β-carotene. Hue angles differed even between those sweetpotatoes with the same flesh color. The orange-fleshed genotypes MD09024-OF, MD09026-OF, and Beauregard, had the lowest L*, showing to be darker than the others. These sweetpotatoes also had the brightest flesh colors with higher C*. The orange-fleshed genotypes MD09026-OF and MD09024-OF were sweeter (10.55oBrix and 9.23oBrix) than Beauregard (5.12oBrix). Brazlândia Roxa had the highest dry matter content (38.05%), followed by the genotypes MD10004-CF, MD09017-YF, MD09026-OF MD10039-CF, and MD09011-CF, which showed similarity, ranging from 32.33% to 29.12%. The highest contents of total carotenoids were found for the orange-fleshed genotypes MD09026-OF (80.06 mg g-1) and MD09024-OF (70.56 mg g-1) and Beauregard (73.12 mg g-1). These same genotypes showed the highest total phenolic compounds (0.815 mg g-1 and 0.686 mg g-1, respectively). MD09026-OF showed the highest content of β-carotene (46.47 mg g-1). MD09026-OF was the most prominent genotype among those evaluated, as it showed the highest total carotenoid, β-carotene, phenolic compounds, and soluble solids content, in addition to a high dry matter content.

Studies on the aerobic deterioration of whole-crop cereal silages

1982 ◽  
Vol 98 (3) ◽  
pp. 529-535 ◽  
Author(s):  
M. K. Woolford ◽  
K. K. Bolsen ◽  
Lesley A. Peartt
Keyword(s):  
Filamentous Fungi ◽  
Butyric Acid ◽  
Dry Matter ◽  
Antimicrobial Agents ◽  
Matter Content ◽  
Dry Matter Content ◽  
Antimicrobial Effects ◽  
High Dry Matter ◽  
Proteolytic Bacteria ◽  
Barley Silage

SUMMARYAs a result of the treatment of made whole-crop barley silage with antimicrobial agents which are specifically inhibitory to fungi or bacteria, it was shown that the subsequent aerobic deterioration was essentially caused by yeasts. These microorganisms were instrumental in the rise in pH, the increase in temperature and the loss of dry matter observed. The filamentous fungi, like one group of bacteria (the streptomycetes), apparently had no part in the process. Bacteria, such as the lactobacilli and particularly proteolytic bacteria, may have had a role in the terminal stages of deterioration, although it was considered more likely that the yeasts again were involved.The whole-crop wheat silage employed in this work was stable in air, a factor attributed to the combined antimicrobial effects of butyric acid present and the relatively high dry-matter content.

scholarly journals Enzymatic hydrolysis at high dry matter content: The influence of the substrates’ physical properties and of loading strategies on mixing and energetic consumption

2018 ◽  
Vol 250 ◽  
pp. 191-196 ◽  
Author(s):  
Federico Battista ◽  
Mélanie Gomez Almendros ◽  
Romain Rousset ◽  
Serge Boivineau ◽  
Pierre-Antoine Bouillon
Keyword(s):  
Enzymatic Hydrolysis ◽  
Physical Properties ◽  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Content ◽  
High Dry Matter

Effect of seed stimulation on germination and sugar beet yield

2013 ◽  
Vol 27 (2) ◽  
pp. 195-201 ◽  
Author(s):  
U. Prośba-Białczyk ◽  
H. Szajsner ◽  
E. Grzyś ◽  
A. Demczuk ◽  
E. Sacała ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Laser Irradiation ◽  
Chlorophyll A ◽  
Dry Matter ◽  
Laser Light ◽  
Positive Influence ◽  
Matter Content ◽  
Dry Matter Content ◽  
Saccharose Content ◽  
Positive Effect

Abstract Germination and sugar beet yield after seed stimulation were investigated. The seeds came from the energ'hill technology and were subject to laser irradiation. The experiments were conducted in the laboratory and field conditions. Lengthening of germinal roots and hypocotyls was observed. A positive effect of the stimulation on the morphological features was observed for the Eh seeds and laser irradiation applied in a three-fold dose. The energ'hill seeds exhibited a significantly higher content of carotenoids in seedlings and an increase in the content of chlorophylls. Laser light irradiation favourably modified the ratio of chlorophyll a to b. The leaves and roots of plants developed from the energ'hill and irradiated seeds were characterized by higher dry matter content thanin non-stimulated seeds. Seed stimulation had a positive influence on yielding and the saccharose content.

scholarly journals Polyethylene glycol as marker in piglet diets with a high dry-matter content

1968 ◽  
Vol 22 (3) ◽  
pp. 515-526 ◽  
Author(s):  
M. J. Manners ◽  
D. E. Kidder
Keyword(s):  
Molecular Weight ◽  
Small Intestine ◽  
Polyethylene Glycol ◽  
Dry Matter ◽  
Matter Content ◽  
Low Molecular Weight ◽  
Dry Matter Content ◽  
Casein Diet ◽  
High Dry Matter ◽  
Weight Substance

1. Polyethylene glycol (PEG) of high molecular weight, used as a dietary marker, did not distribute uniformly in the water present in a high-casein diet as did glucose, a low-molecular-weight substance.2. This distribution effect also occurred with the contents of the stomach and, to a smaller extent, with the contents of the first quarter of the small intestine of piglets given such a diet.

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