A method to assess cultivar differences in rate of physiological ageing of seed tubers

Ittersum, M.K. van; Schölte, K.; Kupers, L.J.P.

doi:10.1007/bf03043446

Cited by 15 publications

(5 citation statements)

References 3 publications

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“…If seed tubers are presprouted, a potato trap crop should be planted not earlier than mid April in view of the risk of night frosts. Planting later in the growing season requires chemical control of late blight (Phytophthora infestans) and there is also the risk that increasing physiological age will weaken the seed tubers, depending on the cultivar (Van Ittersum, Scholte & Kupers, 1990).…”

Section: Discussionmentioning

confidence: 99%

Effect of potato used as a trap crop on potato cyst nematodes and other soil pathogens and on the growth of a subsequent main potato crop

Schölte¹

2000

Annals of Applied Biology

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A field experiment in which main-crop potatoes were grown every other year was conducted on a sandy soil from 1994 to 1999. The aim of the experiment was to control soil-borne pathogens of potato with ecologically sound methods. Potato grown as a trap crop from the end of April to the end of June (8 wk) was used to control potato cyst nematodes (PCN) (Globodera pallida), and its effects on other important soil pathogens and on the growth of a subsequent potato crop were also assessed. Additional experimental treatments were a potato crop from which the haulm was removed and a green manure crop. Three potato cultivars with different degrees of resistance to PCN were grown as the main crop. Duplicate sets of the experiment were run concurrently.The PCN were effectively controlled by the potato trap crop. When a highly resistant potato cultivar was grown as a main crop after the trap crop, the post-harvest soil infestation was very low. When a moderately resistant cultivar was grown after the trap crop the soil infestation also remained low. When the trap crop was alternated with a susceptible potato cultivar as a main crop, soil infestation increased slightly, but the degree of control when compared with no trap crop averaged 96%.Soil infestation with root-knot nematodes (mainly Meloidogyne hapla) increased when potato was grown as a trap crop, but soil infestation with the root-lesion nematode Pratylenchus crenatus was not affected. Stem canker caused by Rhizoctonia solani was not affected by the trap crop but black scurf (sclerotia of R. solani) on tubers was reduced. Soil infestation with Verticillium dahliae declined in one of the duplicate sets of the experiment but not in the other. However, stem infections by ? ! dahliae were significantly decreased in both sets, although the effect depended on the PCN-resistance level of the potato cultivar. When a highly resistant potato cultivar was grown Verticillium stem infections were not significantly affected, they were decreased with a moderately resistant cultivar but the decrease was most pronounced with a PCN-susceptible cultivar.Senescence of a following potato crop was not influenced by the trap crop when a highly PCNresistant cultivar was grown, but it was delayed in the case of a moderately resistant or a susceptible cultivar, resulting in higher tuber yields for those cultivars.The experiment proved that a trap crop can be an alternative to chemical soil disinfection but, for several reasons, the potato itself is not an ideal crop for this purpose; a trap crop other than potato must be developed.

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Section: Discussionmentioning

confidence: 99%

Effect of potato used as a trap crop on potato cyst nematodes and other soil pathogens and on the growth of a subsequent main potato crop

Schölte¹

2000

Annals of Applied Biology

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“…Experiments were performed with a set of cultivars differing in maturity type and rate of physiological ageing (Table 1). Five of the six cultivars used in this research were categorized into different classes of rate of physiological ageing by Van Ittersum et al (1990) using different performance parameters and relative growth vigor indices. The sixth cultivar, Sirtema, was tested for its rate of ageing in comparison with many other varieties by Van Ittersum (1992) and in unpublished experiments by the Department of Agronomy, now part of the Crop and Weed Ecology Group, Wageningen University.…”

Section: Starting Materialsmentioning

confidence: 99%

“…Seed tubers were stored in trays under darkness. Storage treatments were performed in growth cabinets of the former Van Ittersum et al (1990) and Van Ittersum (1992) who compared seed tuber behavior of a large set of cultivars under different storage regimes. Ranking is based on several performance parameters assessed after cool and warm storage.…”

Section: Storage Facilities and Treatmentsmentioning

confidence: 99%

“…The most direct and simple way to indicate physiological age is on the basis of the accumulated daydegrees from dormancy break (O'Brien and Allen, 1981;O'Brien et al, 1983), storage temperature sum (Scholte, 1986;Struik and Wiersema, 1999), and relative growth vigor indices (Bodlaender et al, 1987;Van der Zaag and Van Loon, 1987;Van Ittersum et al, 1990;Van Ittersum, 1992). Developing a unifying concept that is applicable under all conditions of production and storage and to all cultivars, however, is difficult.…”

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confidence: 99%

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Response of Stored Potato Seed Tubers from Contrasting Cultivars to Accumulated Day‐Degrees

Struik

Putten

Caldiz³

et al. 2006

Crop Science

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In potato (Solanum tuberosum L.), the accumulated day-degrees (temperature sum, calculated by accumulating the daily temperatures) from dormancy break until seed tuber use has been suggested as an indicator of the physiological status of the seed. We tested whether similar temperature sums differing in timing of a short period of high temperatures gave similar seed performance. Four field experiments were performed in which seed was used that had been exposed to different storage temperature regimes, differing in total temperature sum or in timing or duration of a warm period. Emergence, number of stems, number of tubers, and early and mature tuber yield were assessed. During the storage period, the onset of sprouting was recorded. Cultivars with a high rate of physiological degeneration (''ageing'') were usually sensitive to warm storage during the second part of the storage period, especially if the first 12 to 18 wk of storage had also been warm. This was reflected in reduced emergence (#10%), low densities of stems (#0.5 stems m 22 ) and tubers (#5 tubers m 22 ), and low yields, especially with early harvesting (#20 g m 22 ). Specific phasing of the warm period could reduce yields to levels even below the yield of the seed tubers exposed to the highest accumulated temperature sum. A higher temperature sum after the end of dormancy advanced and accelerated the process of ageing of seed tubers. Cultivars with a high rate of ageing showed much greater difference between the same temperature sums built up over time in different ways than cultivars with a low rate of ageing. The resulting maximum differences in final fresh tuber yield between seed lots exposed to the same temperature sum could be 65 Mg ha 21 for Astarte (a cultivar with a high rate of ageing) compared with nil for Dé siré e (a cultivar with a low rate of ageing).

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“…The classification of seed tubers as physiologically 'young' or 'old' remains highly relative, complicating the comparison of studies. Second, the influence of physiological age on field performance is cultivar-specific and varies based on the cultivar's rate of ageing and maturity type (Moll 1985;Van Loon 1987;Benz and Fahem 1988;Van Ittersum et al 1990;Hay and Hampson 1991;Van Ittersum 1993;Struik et al 2006;Blauer et al 2013). Most existing literature focuses on relatively old and partially outdated cultivars, necessitating an update in our understanding of the behaviour of currently widely grown cultivars.…”

Section: Introductionmentioning

confidence: 99%

Physiological Age of Potato Seed Tubers of Contrasting Cultivars Hardly Affects Crop Performance in a Temperate Climate

Zou,

van der Putten,

Datema

et al. 2024

Potato Res.

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The physiological age of potato seed tubers influences the subsequent field performance of the crop, conditioning its growth and development. This study investigates the effects of the physiological age of seed tubers on the field performance of four contrasting, currently widely grown cultivars (Agria, Festien, Innovator, Lady Claire) across three sites in the Netherlands over 3 years (Cycles 1—3). Seed tubers were produced annually at a single site under uniform conditions, with variations in physiological age induced by applying different storage temperatures (4, 7, 10, and/or 17 °C). Our previous study revealed varying effects of storage temperature on sprouting behaviour among cultivars, suggesting different rates of ageing. After completing the storage season, in the current study these seed tubers were planted in the field and subsequent crop performance was thoroughly phenotyped. Cultivar-specific effects of storage temperature were evident during early growth stages and when seed tubers were stored at 17 °C in Cycle 3. However, within the storage temperature range of 4 to 10 °C, the influence of storage temperatures was small or inconsistent. Overall, effects on canopy cover, stem and tuber number, yield and quality, and tuber yield explanatory variables were limited. The outcomes suggest that while very high storage temperatures should be avoided in regions with long crop cycles, stringent cold storage regimes are unnecessary to achieve optimal growth vigour in potato seed tubers of the studied cultivars in a temperate climate.

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A method to assess cultivar differences in rate of physiological ageing of seed tubers

Cited by 15 publications

References 3 publications

Effect of potato used as a trap crop on potato cyst nematodes and other soil pathogens and on the growth of a subsequent main potato crop

Effect of potato used as a trap crop on potato cyst nematodes and other soil pathogens and on the growth of a subsequent main potato crop

Response of Stored Potato Seed Tubers from Contrasting Cultivars to Accumulated Day‐Degrees

Physiological Age of Potato Seed Tubers of Contrasting Cultivars Hardly Affects Crop Performance in a Temperate Climate

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