scholarly journals Effect of Environment and Sugar Beet Genotype on Root Rot Development and Pathogen Profile During Storage

2016 ◽  
Vol 106 (1) ◽  
pp. 65-75 ◽  
Author(s):  
Sebastian Liebe ◽  
Mark Varrelmann
Keyword(s):  
Sugar Beet ◽  
Environmental Influence ◽  
Sugar Content ◽  
Management Strategies ◽  
Genetic Resistance ◽  
Invert Sugar ◽  
Sugar Accumulation ◽  
Strongly Correlated ◽  
Content Understanding ◽  
Storage Rots

Storage rots represent an economically important factor impairing the storability of sugar beet by increasing sucrose losses and invert sugar content. Understanding the development of disease management strategies, knowledge about major storage pathogens, and factors influencing their occurrence is crucial. In comprehensive storage trials conducted under controlled conditions, the effects of environment and genotype on rot development and associated quality changes were investigated. Prevalent species involved in rot development were identified by a newly developed microarray. The strongest effect on rot development was assigned to environment factors followed by genotypic effects. Despite large variation in rot severity (sample range 0 to 84%), the spectrum of microorganisms colonizing sugar beet remained fairly constant across all treatments with dominant species belonging to the fungal genera Botrytis, Fusarium, and Penicillium. The intensity of microbial tissue necrotization was strongly correlated with sucrose losses (R2 = 0.79 to 0.91) and invert sugar accumulation (R2 = 0.91 to 0.95). A storage rot resistance bioassay was developed that could successfully reproduce the genotype ranking observed in storage trials. Quantification of fungal biomass indicates that genetic resistance is based on a quantitative mechanism. Further work is required to understand the large environmental influence on rot development in sugar beet.

Susceptibility to root tip breakage increases storage losses of sugar beet genotypes

2016 ◽  
pp. 625-632 ◽  
Author(s):  
Christa Hoffmann ◽  
Katharina Schnepel
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Close Correlation ◽  
Invert Sugar ◽  
Root Tip ◽  
Sugar Accumulation ◽  
Genotypic Differences ◽  
Storage Losses ◽  
Controlled Conditions ◽  
Sugar Loss

Good storability of sugar beet is of increasing importance, not only to reduce sugar losses, but also with regard to maintaining the processing quality. Genotypic differences are found in storage losses. However, it is not clear to which extent damage may contribute to the genotypic response. The aim of the study was to quantify the effect of root tip breakage on storage losses of different genotypes. For that purpose, in 2012 and 2013, six sugar beet genotypes were grown in field trials at two locations. After lifting roots were damaged with a cleaning device. They were stored for 8 and 12 weeks, either under controlled conditions in a climate container at constant 8°C, or under ambient temperature in an outdoor clamp. The close correlation underlines that storage losses under controlled conditions (constant temperature) can well be transferred to conditions in practice with fluctuating temperature. The strongest impact on invert sugar accumulation and sugar loss after storage resulted from storage time, followed by damage and growing environment (year × growing site). Cleaning reduced soil tare but increased root tip breakage, in particular for genotypes with low marc content. During storage, pathogen infestation and invert sugar content of the genotypes increased with root tip breakage, but the level differed between growing environments. Sugar loss was closely related to invert sugar accumulation for all treatments, genotypes and environments. Hence, it can be concluded that root tip breakage contributes considerably to storage losses of sugar beet genotypes, and evidently genotypes show a different susceptibility to root tip breakage which is related to their marc content. For long-term storage it is therefore of particular importance to avoid damage during the harvest operations and furthermore, to have genotypes with high storability and low susceptibility to damage.

Development of the sugar beet quality in the Netherlands since 1980 and introduction of invert sugar as a new parameter for beet quality assessment

2015 ◽  
pp. 95-103 ◽  
Author(s):  
Dirk P. Vermeulen
Keyword(s):  
The Netherlands ◽  
Sugar Beet ◽  
Quality Assessment ◽  
Sugar Content ◽  
Quality Parameters ◽  
Invert Sugar ◽  
Internal Quality ◽  
Glucose Content ◽  
Thick Juice ◽  
Trial Phase

The technological beet quality has been always important for the processors of sugar beet. An investigation into the development of the beet quality in the Netherlands since 1980 has shown that beet quality has improved significantly. Internal quality parameters that are traditionally determined in the beet laboratory, i.e. sugar content, Na, K and -aminoN, all show an improving trend over the years. In the factories, better beet quality has led to lower lime consumption in the juice purification and significantly higher thick juice purity. In 2013, Suiker Unie introduced the serial analysis of the glucose content in beet brei as part of the routine quality assessment of the beet. The invert sugar content is subsequently calculated from glucose content with a new correlation. The background, the trial phase and the first experiences with the glucose analyzer are discussed.

Effect of agronomic factors on invert sugar accumulation in sugar beet

2016 ◽  
pp. 765-769
Author(s):  
Martijn Leijdekkers
Keyword(s):  
Early Stage ◽  
Sugar Content ◽  
Frost Damage ◽  
Field Trials ◽  
Invert Sugar ◽  
Control Measures ◽  
Sugar Accumulation ◽  
Laboratory System ◽  
Glucose Content ◽  
Substantial Impact

Since 2013, the glucose content of all beet samples from beet reception and field trials is routinely analyzed in The Netherlands using a biosensor which is integrated into the automatic beet laboratory system. The invert sugar content is subsequently calculated from the glucose content using a linear conversion factor. This additional information helps to identify beet deliveries with a questionable beet quality at an early stage and provides valuable information on various agronomic factors that increase invert sugar accumulation in the beet. Based on results obtained during the past years, different factors are highlighted that affect the invert sugar content in the beet. Among these factors, beet deterioration following frost damage and the presence of root rot due to infestation by pests and diseases have shown to increase the invert sugar content dramatically. In addition, unfavorable storage conditions and bad harvesting quality had a substantial impact on invert sugar accumulation. Growth conditions and beet variety also influenced the invert sugar content markedly, although to a much lesser extent. Using the obtained data, the most important control measures that enable growers to prevent undesired invert sugar formation and consequent sugar losses in their beet are discussed.

scholarly journals Varietal and environmental influence on the yield and the end-use quality of sugar beet

2006 ◽  
pp. 27-35 ◽  
Author(s):  
Stevan Radivojevic ◽  
Irena Dosenovic
Keyword(s):  
Sugar Beet ◽  
Environmental Factor ◽  
Environmental Influence ◽  
Sugar Content ◽  
Root Yield ◽  
Beet Root ◽  
Genotype Effect ◽  
End Use ◽  
Sugar Beet Root

Environmental factor (location) influenced sugar beet root yield, which was higher by 20.6% on Belgrade location than on Pancevo location. However, when compared the genotype effect, smaller environmental influence was found for root yield, which was not expected. The investigated factors (variety and location) equally contributed to the variation in root sugar content. Significantly higher varietal influence was observed for granulated sugar yield, which was also unexpected. .

Storability as a varietal characteristic of sugar beet? – Results 2016–2018

2020 ◽  
pp. 495-501
Author(s):  
Christine Kenter ◽  
Erwin Ladewig
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Invert Sugar ◽  
Root Mass ◽  
Before And After ◽  
The Mean ◽  
Sugar Loss

The storability of sugar beet varieties grown in Germany has not been specified to date. In 2016–2018, nine storage trials were carried out in order to test the storability of 13 current varieties. The beet were stored in climate containers for approximately 480 °Cd. Root mass and the contents of sugar, invert sugar and marc were determined before and after storage. During storage, the sugar content decreased in all varieties while the invert sugar content increased. The observed sugar loss was most significant (about 10% of the amount before storage) in an environment where the syndrome „basses richesses“ had occurred. Differences among varieties were significant in six environments, but not for the mean of the eight trials without diseases. Variety recommendations concerning the storability of sugar beet are thus currently not possible.

scholarly journals Integrative transcriptomics reveals genotypic impact on sugar beet storability

2020 ◽  
Vol 104 (4-5) ◽  
pp. 359-378
Author(s):  
Silvia Madritsch ◽  
Svenja Bomers ◽  
Alexandra Posekany ◽  
Agnes Burg ◽  
Rebekka Birke ◽  
...  
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Molecular Mechanisms ◽  
Sugar Industry ◽  
Pathogen Resistance ◽  
Invert Sugar ◽  
Sugar Accumulation ◽  
Hub Genes ◽  
Driver Genes ◽  
Sucrose Loss

Abstract Key message An integrative comparative transcriptomic approach on six sugar beet varieties showing different amount of sucrose loss during storage revealed genotype-specific main driver genes and pathways characterizing storability. Abstract Sugar beet is next to sugar cane one of the most important sugar crops accounting for about 15% of the sucrose produced worldwide. Since its processing is increasingly centralized, storage of beet roots over an extended time has become necessary. Sucrose loss during storage is a major concern for the sugar industry because the accumulation of invert sugar and byproducts severely affect sucrose manufacturing. This loss is mainly due to ongoing respiration, but changes in cell wall composition and pathogen infestation also contribute. While some varieties can cope better during storage, the underlying molecular mechanisms are currently undiscovered. We applied integrative transcriptomics on six varieties exhibiting different levels of sucrose loss during storage. Already prior to storage, well storable varieties were characterized by a higher number of parenchyma cells, a smaller cell area, and a thinner periderm. Supporting these findings, transcriptomics identified changes in genes involved in cell wall modifications. After 13 weeks of storage, over 900 differentially expressed genes were detected between well and badly storable varieties, mainly in the category of defense response but also in carbohydrate metabolism and the phenylpropanoid pathway. These findings were confirmed by gene co-expression network analysis where hub genes were identified as main drivers of invert sugar accumulation and sucrose loss. Our data provide insight into transcriptional changes in sugar beet roots during storage resulting in the characterization of key pathways and hub genes that might be further used as markers to improve pathogen resistance and storage properties.

Impact of beet quality on sugar manufacture Part 2. Impact of invert sugar on beet processing

2020 ◽  
pp. 154-160
Author(s):  
Jan Maarten de Bruijn
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Quality Criteria ◽  
Quality Parameters ◽  
Invert Sugar ◽  
Quality Analysis ◽  
Sugar Recovery ◽  
Glucose Content ◽  
Recent Developments ◽  
The Impact

In the earlier SugarProTech Facts1, Part 1, it has been explained that, apart from the traditional beet quality criteria (i.e. sugar content, K, Na, N, soil tare), additional quality criteria should be looked upon too, so to reduce their impact on processing. The invert sugar content of sugar beet is one of the most important quality parameters and thanks to recent developments it is now possible to routinely determine the glucose content of sugar beet in the tarehouse from which the total invert sugar content can be calculated. In Part 2 of this beet quality topic it will be demonstrated that incorporating invert sugar in the (Dutch) formula for predicting the sugar loss to molasses – and so the extractability of sugar from beet – has markedly improved the correlation between beet quality analysis and sugar recovery in factory practice. The impact of the invert sugar content in beet on both sugar recovery and the need of alkali addition to process will be quantified, thereby distinguishing different beet qualities.

Genotypic variability in storage losses of sugar beet

2014 ◽  
pp. 302-310 ◽  
Author(s):  
Katharina Schnepel ◽  
Christa Hoffmann
Keyword(s):  
Sugar Beet ◽  
Storage Conditions ◽  
Invert Sugar ◽  
Sugar Accumulation ◽  
Genotypic Differences ◽  
Genotypic Variability ◽  
Storage Losses ◽  
Genotype Effect ◽  
High Level ◽  
Selection Of

Storage losses of sugar beets are affected by storage conditions, but may also depend on growing site and genotype. The aim of the present study was to quantify the genotype effect on storage losses and to analyze the reasons for genotypic variability in sugar losses and accumulation of invert sugar. In 2011, 36 sugar beet genotypes and in 2012, 18genotypes were cultivated at two growing sites. After harvest beets were stored for 8 and 12 weeks at 8°C and 20°C in climate containers, respectively. Sugar losses increased with thermal time in store and were closely related to invert sugar accumulation. The growing site strongly affected the storage losses and maximum genotypic differences occurred at growing sites with particularly high level of storage losses. Genotypic differences were primarily caused by differences in the level of infestation with microorganisms, but also by differences in the beets’ carbohydrate metabolism. The infestation with microorganisms after storage was related to the marc content of genotypes before storage pointing to a non-specific resistance. The results underline a marked influence of the genotype on storage losses with a proportion of variance of 12%. Thus, selection of varieties with improved storability seems promising to reduce storage losses of sugar beet. But so far, no criteria are available to select for good storability of sugar beet varieties.

scholarly journals Formation of biometric indicators of sugar beet hybrids of domestic breeding

2021 ◽  
Author(s):  
M. V. Roik ◽  
N. O. Kononiuk
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Sugar Accumulation ◽  
Maximum Weight ◽  
Leaf Mass ◽  
Field Laboratory ◽  
Average Group ◽  
Production Conditions ◽  
Mass Formation ◽  
Domestic Breeding

Purpose. Find out the features of biometric indicators formation in sugar beet hybrids of domestic breeding. Methods. Field, laboratory. Results. According to the results of the research, it was determined that in early August, the maximum weight of roots (840 g) was in hybrid ‘ITsB 0904’. Good indicators were observed in hybrids ‘Umanskyi Ch S97’, ‘Soniachnyi’ and ‘Anichka’, 770, 780, and 800 g at the average group indicator of 730 g. It was investigated that the hybrid ‘Maksym’ (15.1%) and ‘Etiud’ (14.9%) were the best in terms of sugar accumulation in roots. Sugar content at the level of 14.8 % was observed in hybrids ‘Umanskyi ChS 97’, ‘Ramzes’, ‘Konstanta’, ‘Soniachnyi’ and ‘Verkhnia’ at the average group value of 14.5%. Conclusions. It is important to continue the study of the dynamics of root and leaf mass formation together with the process of sugar accumulation in roots in terms of establishing individual efficiency of hybrids and developing recommendations for the fullest realization of their potential in production conditions.

Breeding and usage of sugar beet cultivars and hybrids resistant to sugar beet nematode Heterodera schachtii

2015 ◽  
Vol 2 (1) ◽  
pp. 12-22 ◽  
Author(s):  
L. Pylypenko ◽  
K. Kalatur
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Production Capacity ◽  
Nematode Resistance ◽  
Control Measures ◽  
Heterodera Schachtii ◽  
Yield Reduction ◽  
Agricultural Practice ◽  
Germplasm Exchange ◽  
Good Agricultural Practice

Heterodera schachtii Schmidt, 1871 is one of the most economically important pests of sugar beet (Beta vulgaris L.) worldwide. It is also widespread in most sugar beet growing regions in Ukraine causing serious yield reduction and decreasing sugar content of sugar beet in infested fi elds. An advanced parasitic strategy of H. schachtii is employed to support nematode growth, reproduction and harmfulness. In intensive agriculture systems the nematode control measures heavily rely on nematicides and good agricultural practice (crop rota- tion in the fi rst place). But alternative strategies based on nematode resistant sugar beet cultivars and hybrids are required as none of nematicides approved for the open fi eld application are registered in Ukraine. Here we review the achievements and problems of breeding process for H. schachtii resistance and provide the results of national traditional breeding program. Since the beginning of 1980s fi ve sugar beet cultivars (Verchnyatskyi 103, Yaltuschkivska 30, Bilotcerkivska 45, BTs-40 and Yuvileynyi) and seventeen lines partly resistant or toler- ant to H. schachtii have been obtained throughout targeted crossing and progenies assessment in the infested fi elds. The further directions for better utilization of genetic sources for nematode resistance presented in na- tional gene bank collection are emphasized. There is a need for more accurate identifi cation of resistance genes, broader application of reliable molecular markers (suitable for marker-assisted selection of nematode resistant plants in the breeding process) and methods for genetic transformation of plants. Crop cash value and national production capacity should drive the cooperation in this fi eld. Knowledge as well as germplasm exchange are thereby welcomed that can benefi t breeding progress at national and international level.

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