Assessment of the physiological vigour of new potato cultivars in Switzerland

Reust, W.; Winiger, F. A.; Hebeisen, Thomas; Dutoit, J. P.

doi:10.1007/bf02360282

Cited by 11 publications

(9 citation statements)

References 2 publications

(1 reference statement)

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“…The method for describing physiological ageing must be simple, easy to use, precise, accurate and have predictive value. The use of thermal time as the basis of an ageing clock as it pertains separately to seed tubers and the developing sprouts (MacKerron, 1998) has potential practical use in comparative evaluations of cultivars (Reust, 1998) although there are serious limitations as noted previously.…”

Section: Future Directionsmentioning

confidence: 99%

Physiological ageing of potato tubers: A Review

Coleman

2000

Annals of Applied Biology

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Numerous theories have been proposed to describe the complex process of ageing in biological systems. Two general groups of ageing theories currently exist: 1) stochastic where the accumulation of random molecular damage leads to loss of information vital to the cell; and, 2) systemic where an organised, genetically based sequence of metabolic activities leads to programmed ageing. Whether these are acceptable models of ageing in potato tubers is unknown although the tuber could provide a useful experimental system for studying ageing. An initial requirement for advancing the concept of ageing in potato tubers must centre on the development of a suitable ageing index. A review of the literature suggests that a modified approach to 'sprouting capacity' and 'incubation period' may allow tuber ageing to be described in mathematical terms that would, in turn, facilitate the development of a physiological ageing index as well as temperature sensitive predictive models. Although a number of biochemical studies of ageing have been pursued, the development of adequate biomarkers has yet to achieve a coordinated level of development as found in a range of organisms. For example, ageing in other biological systems may be viewed as an outcome of an accumulation of random molecular damage and may be primarily caused by a changing balance between reactive oxygen species and diminishing levels of protective agents such as superoxide dismutase, alpha-tocopherol or vitamin C. The exploration of these and similar problems in the context of appropriate modelling approaches should allow a better understanding of physiological ageing in potato tubers. ReferencesAllen E J, O'Brien P J. 1986. The practical significance of accumulated day-degrees as a measure of physiological age of seed potato tubers. Field Crops Research 14:141-15 1. . 1979. Effects of length of sprouting period on growth and yield of contrasting early potato cultivars. Journal of Agricultural Science, Cambridge 92:151-163. Appleman C 0. 1924. Apical dominance in potatoes as an index of seed value. University of Maryland, Agricultural Experimental Station Bulletin 265:236-258. Arking R. 1998. Biology of aging: Observations and principles, 2"d Edn. Sunderland: Sinauer Associates. Balin A K. (Ed.). 1994. Practical handbook of human biologic age determination. Boca Raton: CRC Press. Bean J N, Allen E J. 1980. Effect of physiological age and cultivar on growth and light interception in the potato. Potato Research 23:256-257. Bodlander K B A, Marinus J. 1987. Effect of physiological age on growth vigour of seed potatoes of two cultivars. 3. Effect on plant growth under controlled conditions. Potato Research Bush D S. 1995. Calcium regulation in plant cells and its role in signaling. Annual Review of Plant Physiology and Plant Molecular Biology 46:94-122. Caldiz D 0, Fernandez L V, Struik P C. 1999. Physiological age index: a new, simple and reliable indicator of the physiological age of seed tubers. Abstracts of the 14th Triennial Conference 30~423-440. ofthe EAPR, pp. 88...

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Section: Future Directionsmentioning

confidence: 99%

Physiological ageing of potato tubers: A Review

Coleman

2000

Annals of Applied Biology

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“…Knowles and Botar (1991) reported that ageinduced changes in sprouting can also be used to reasonably predict both yield level and quality. Early yields can also help reduce exposure of the potato crop to adverse weather, pests and other hazards that may limit yield and ⁄ or lower the quality of tubers (Horton 1987, Reust et al 2001). In addition, harvesting potatoes early can make the land available for other crops in a rotation.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Seed‐Tuber Physiological Age and Cultivar on Early Potato Production

Asiedu¹,

Astatkie²,

Yiridoe³

2003

J Agronomy Crop Science

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Enhancing physiological aging of seed‐potatoes has the potential to substantially affect production, especially for short‐season growing areas. This study analysed the effect of seed‐tuber age and cultivar, jointly, to identify the combination for optimum early crop production, based on field experiments conducted at two locations in Nova Scotia, Canada. The potato cultivars Superior, AC‐Novachip, Niska, and Yukon Gold were aged by exposing seeds stored at 4 °C to warming periods of 0, 242 (3 weeks), and 484 (6 weeks) day‐degrees, prior to planting. Cultivar and age levels were completely randomized within each location and replicated four times. Harvest periods at 65, 80 and 95 days after planting (DAP) were analysed as an unbalanced split‐plot factorial, with year as a random blocking factor, location as a whole plot treatment, and cultivar and age crossed as subplot treatments. Total yield and marketable yield from Yukon Gold improved with physiological age when harvested early at 65 and 80 DAP, while that from AC‐Novachip improved when aged only 3 weeks. Niska was not affected by age. Overall, AC‐Novachip was consistently better than the remaining cultivars, regardless of age. The best treatment combination that maximized marketable yield was Yukon Gold aged 6 weeks planted at a commercial farm and harvested 95 DAP. For early harvest (65 DAP), however, AC‐Novachip aged 3 weeks and Yukon Gold aged 6 weeks generated the highest yields. Niska and Superior generated lower yield and higher culls.

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“…However, no correlation (r = 0.01) was observed between parental tuber dormancy and SVI. So, the relationship between offspring TPS dormancy and their parent's tuber dormancy is unpredictable [22][23][24].…”

Section: Discussionmentioning

confidence: 99%

Correlation Between True Seed and Tuber Dormancy in a Solanum Tuberosum Group Phureja × Stenotomum Population

Haider¹,

Haynes²,

Ayyub³

et al. 2019

IJFSA

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Short tuber dormancy is desirable when multiple cropping seasons occur yearly, yet most potato cultivars were developed for regions with one growing season per year and have long dormancy. Although several methods exist for breaking tuber dormancy, they can lead to uneven emergence and poor stand counts. Breeding short dormancy cultivars could alleviate this problem. A long-day adapted diploid hybrid population of S. tuberosum Group phureja-S. stenotomum (phu-stn) has been developed with short tuber dormancy. The purpose of this study was to determine if there was a correlation between tuber dormancy in these phu-stn parents and true potato seed dormancy in their offspring, which would allow rapid breeding of short-dormancy germplasm. Tuber dormancy was evaluated for 12 diploid phu-stn parents harvested from three different locations: Presque Isle, Maine (ME), Plymouth, North Carolina (NC) and Beltsville, Maryland (MD) and stored at 7 °C in MD. Twelve crosses were made among these parents. Each parent was represented twice in the offspring. True potato seed (TPS) from these 12 families were disinfected and soaked in water for 24 hours, dried, and sown in tissue culture. TPS germination was recorded daily for 35 days and the germinated proportion was calculated. The experiment was conducted three times. Parental tuber dormancy ranged from 6-10+ weeks and varied significantly among locations. TPS family proportion germination ranged from 9 to 99%. There was no correlation (r = 0.01) between parental tuber dormancy and seedling vigor index. These results show that the relationship between offspring TPS dormancy and their parent's tuber dormancy is unpredictable. Additional research is needed to determine if selection for early sprouting in the offspring in vitro is correlated with short tuber dormancy in subsequent field generations of these offspring.

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Assessment of the physiological vigour of new potato cultivars in Switzerland

Cited by 11 publications

References 2 publications

Physiological ageing of potato tubers: A Review

Physiological ageing of potato tubers: A Review

The Effect of Seed‐Tuber Physiological Age and Cultivar on Early Potato Production

Correlation Between True Seed and Tuber Dormancy in a Solanum Tuberosum Group Phureja × Stenotomum Population

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