Identification of Stress Tolerance Traits in Sugar Beet

Clarke, N.; Hetschkun, H. M.; Jones, Christopher M.; Boswell, E. H.; Marfaing, Hélène

doi:10.1007/978-3-642-78533-7_32

Cited by 21 publications

(15 citation statements)

References 12 publications

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“…However, the efficiency of the sugar extraction process depends on the concentration of solutes other than sucrose such as univalent ions or a-amino compounds. The interrelationship among the accumulation of sucrose and these, so-called, impurities is an important determinant of root quality (Clarke et al 1993). On the other hand, these solutes are important factors in osmotic adjustment induced by low water potential conditions as was proved above.…”

Section: Resultsmentioning

confidence: 99%

Influence of long-term drought stress on osmolyte accumulation in sugar beet (Beta vulgaris L.) plants

et al. 2008

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Accumulation of various osmolytes was examined in plants of sugar beet cv. Janus grown under two soil water treatments: control (60% of the field water capacity; FWC) and drought (30-35% FWC). The water shortage started on the 61st day after emergence (DAE), at the stage of the beginning of tap-roots development and was imposed for 35 days. Osmotic potential of sugar beet plant organs, particularly tap-roots, was decreased significantly as a consequence of a long-term drought. Water shortage reduced univalent (K + , Na + ) cations concentrations in the petioles and divalent (Ca 2+ , Mg 2+ ) ions level in the mature and old leaves. Cation concentrations in the taproots were not affected by water shortage. The ratio of univalent to divalent cations was significantly increased in young leaves and petioles as a consequence of drought. Long-term water deficit caused a significant reduction of inorganic phosphorus (P i ) concentration in young and old leaves. Under the water stress condition, the concentration of proline was increased in all individual plant organs, except proline concentration in the youngest leaves. Drought treatment caused a significant increase of glycine betaine content in shoot without any change in tap-roots. Glucose concentrations were significantly increased only in tap-roots as the effect of drought. In response to water shortage the accumulation of sucrose was observed in all the examined leaves and tap-roots. Overall, a long-term drought activated an effective mechanism for osmotic adjustment both in the shoot and in the root tissues which may be critical to survival rather than to maintain plant growth but sugar beet organs accumulate different solutes as a response to water cessation.

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Section: Resultsmentioning

confidence: 99%

Influence of long-term drought stress on osmolyte accumulation in sugar beet (Beta vulgaris L.) plants

et al. 2008

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“…Our aim here was to investigate the drought effect on the final yield and quality on aspects of plant growth and assimilate partitioning. Cessation of watering for a period at least 27days at different stage of plant development, imposed moderate water stress and resulted in the reduction of the RWC of young and old leaves as demonstrated previously by Clarke et al (1993), and Kevrešan et al (1997Kevrešan et al ( /1998. It is declined by about 3-6%, which corresponded to decrease in leaf water potential of 0.2-0.3 MPa from -0.8 to -1.0 MPa -calculated according to Milford and Lawlor (1976).…”

Section: Discussionmentioning

confidence: 57%

“…Sugar beet plants possess an effective mechanism for osmotic adjustment (Clarke et al 1993). Unfortunately, α-amino-N compounds, glycine betaine and proline (Gzik 1996, Rover andButtner 1999), along with sodium and potassium which accumulate in sugar beet taproot following water stress, are principal impurities that reduce sugar beet quality for processing by inhibiting crystallisation during processing (Clarke et al 1993).…”

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confidence: 99%

Growth and dry matter partitioning in sugar beet plants (Beta vulgaris L.) under moderate drought

Choluj¹,

Karwowska²,

Jasińska³

et al. 2004

Plant Soil Environ.

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Growth response of sugar beet plants to drought stress applied at different growth stages has been investigated. Cessation of watering imposed moderate water stress and resulted in the reduction of the relative water content of young and old leaves maximally by 6%. However, water content in taproot was more drastically decreased than in the shoot. Water withholding reduced dry ma�er accumulation and leaf assimilatory expansion when imposed at successive growth stages, especially in the case of earlier stress application. Substantial change in distribution pa�ern was observed when stress affected foliar development, more than 80% of dry ma�er was accumulated in the taproots. Water shortage negatively influenced both taproot and sugar yield by 16-52%, depending on the stress timing in the season. Drought stress did not change the sucrose concentration but when occurred in foliar and early stage of root development, decreased the contents of important non-sugar compounds like potassium and α-amino-N solutes in the final yield. Overall, data concerning the different water status in particular organs implies that a hydrodynamic equilibrium does not exist within the sugar beet plant as a response to water stress. Drought imposed on the earlier stage, most drastically influenced plant growth and final yield. When water stress occurs at the end of crop cycle, sugar beet plants had a higher ability to recovery their growth.Keywords: Beta vulgaris L.; drought; dry ma�er partitioning; growth; leaf area; water content; yield quantity and quality Supported in the frames of KBN Grant 5 PO6A 028 18.

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“…In sugar beet, water shortage greatly affects beet root quality (Pidgeon et al, 2001;Bagatta et al, 2004) and to a less degree affects root yield. Despite the drastic influence of drought on sugar beet shoot, the taproot yield mainly remains less affected since an effective osmotic adjustment mechanism is present (Clarke et al, 1993;Abdollahian-Noghabi and Froud-Williams, 1998;Hsiao, 2000;Shaw et al, 2002). However in an earlier report, a reduction of 16.1-51.6% in both root yield and sugar yield was noted upon water stress depending on the drought timing during the growth season (Choluj et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

“…These impurities inhibit the crystallization of sucrose and increase the molasses production rate (Dunham and Clark, 1992;Harvey and Dutton, 1993). The rate of these non-sugar compounds usually increases upon drought stress, lowering the sugar beet quality (Clarke et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Sequential path analysis of some yield and quality components in sugar beet grown in normal and drought conditions

Firouzabadi

Farrokhi²,

Parsaeyan

2012

Ital J Agronomy

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Through biometrical analyses of yield and its components selection indices can be generated and be used in future breeding programs. Sugar yield components were considered as the first order variables (FOV) in previous path analyses studies, while white sugar yield (WSY) and its related traits were the FOV here. Three lines of sugar beet (7219-P.69, BP-Karaj, 7112) were evaluated in drought and nondrought conditions. Two sequential path models were used for analysis of associations among WSY and its related traits by arraying the independent variables in first-, second-, and third-order paths on the basis of their maximum direct effects and minimal collinearity. Four first-order variables, namely root diameter, sugar yield, molasses content and sugar content, revealed highest direct effects on WSY under normal condition, while root length, α-amino-N, root yield, crown dry weight, water use efficiency and Na + were found to fit as second-order variables. Three first-order variables, namely sugar content, sugar yield and molasses content, revealed highest direct effects on white sugar yield under drought-stress condition. In this case, sugar yield had the highest direct effect on WSY. In general, the sequential path analysis efficiently demonstrated the effects of predictor variables.

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Identification of Stress Tolerance Traits in Sugar Beet

Cited by 21 publications

References 12 publications

Influence of long-term drought stress on osmolyte accumulation in sugar beet (Beta vulgaris L.) plants

Influence of long-term drought stress on osmolyte accumulation in sugar beet (Beta vulgaris L.) plants

Growth and dry matter partitioning in sugar beet plants (Beta vulgaris L.) under moderate drought

Sequential path analysis of some yield and quality components in sugar beet grown in normal and drought conditions

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