Physiological age index: a new, simple and reliable index to assess the physiological age of seed potato tubers based on haulm killing date and length of the incubation period

Caldiz, Daniel O.; Fernández, Laura; Struik, P.C.

doi:10.1016/s0378-4290(00)00134-9

Cited by 47 publications

(37 citation statements)

References 23 publications

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“…A very important problem is the varied response of individual cultivars to the same factors that modify the physiological age of mother tubers (Reust and Münster, 1975;Rykaczewska, 1987aRykaczewska, , 1987bVan Loon, 1987;Caldiz et al, 2001). Therefore, measures and indicators of the physiological age of tubers have been explored.…”

Section: Yield and Assessment Of The Seed Vigour Of Potato Cultivarsmentioning

confidence: 99%

“…Another measure under consideration in research work is the length of the incubation period (time elapsed from sprouting until new tuber formation on the sprouts) (Reust, 1986). Those studies were conducted mostly on only up to a dozen cultivars (Reust and Münster, 1975;Caldiz et al, 2001). However, while analyzing a larger number, we sometimes find that the tops of the sprouts in some cultivars are dying off despite being provided with identical laboratory conditions, which can prolong the incubation period (Rykaczewska, 1993).…”

Section: Yield and Assessment Of The Seed Vigour Of Potato Cultivarsmentioning

confidence: 99%

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Assessment of Potato Mother Tuber Vigour Using the Method of Accelerated Ageing

Rykaczewska

2013

Plant Production Science

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Section: Yield and Assessment Of The Seed Vigour Of Potato Cultivarsmentioning

confidence: 99%

Section: Yield and Assessment Of The Seed Vigour Of Potato Cultivarsmentioning

confidence: 99%

Assessment of Potato Mother Tuber Vigour Using the Method of Accelerated Ageing

Rykaczewska

2013

Plant Production Science

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“…Potato is one of the plant species that are the most effective in transforming the solar energy into human food, both quantitatively and qualitatively (Caldiz et al, 2001;Michałek, Sawicka, 2005;Lamperski, 2007;Struik, 2007;Caldiz, 2009;Loboda, 2010;Kalaji et al, 2011;Brestic et al, 2012;Bahari et al, 2013). High maximum efficiency of photosystem (PS) II (F v /F m ) indicates relatively high potential efficiency of PSII.…”

Section: Introductionmentioning

confidence: 99%

The relationship of potato tubers chemical composition with selected physiological indicators

Sawicka

Michałek

Pszczółkowski

2015

Zemdirbyste-Agriculture

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The paper deals with the analysis of a ten-year study on the chemical composition of tubers of forty potato cultivars and their physiological indicators. The research was carried out at the experimental station in Parczew, Poland on a podzolic soil with typical granulometric composition of sandy silty clay, using a randomized block design in four replicates. Forty potato cultivars were the subject of this study, including eight very early, seven early, nine medium early, nine medium late and seven late cultivars. The photosynthetic activity of plants was evaluated by measuring chlorophyll a and b determined in raw leaf matter by the spectrophotometric method as well as by measurements of chlorophyll fluorescence induction of potato leaves using a fluorimeter PAM-2000. Measurements of photosynthetic indicators at various stages of potato development revealed that their increase indirectly reflected the prolongation of plant growing period, which might have a direct impact on yield quality. The chemical composition was determined by standard methods used for tubers. The main objective of the study was to determine the chemical composition of potato depending on the values of chlorophyll fluorescence indicators, which will allow prediction of the chemical composition of tubers during the growing season. The obtained results allow us to predict changes in nutrient content in potato tubers based on the indicators such as: chlorophyll a and b content, minimum and maximum fluorescence yield, maximum efficiency of photosystem in dark and mean plant growth rate.

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“…chemical, biophysical and molecular traits (CALDIZ et al, 2001;CALDIZ, 2009). Such indicators are necessary to quantify and explain the differences in the rate of aging of tubers from different cultivars and under different crop and storage conditions and to quantify and model the effects of seed age on the growth and yield of plants (STRUIK et al, 2006).…”

Section: %Stmentioning

confidence: 99%

Thermal sum of potato plants and tuber sprouting

et al. 2017

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This study aimed to determine the thermal sum of the different stages of development of potato plants to better understand its relationship with tuber sprouting. The potato clones SMIJ461-1, SMINIA793101-3 and SMINIA97145-2 and the cultivar Macaca were evaluated in spring and autumn crop seasons in Santa Maria and Julio de Castilhos, RS. Emergence (EM), tuber initiation (TI) and onset of senescence (OS) of the plants were determined and the accumulated thermal sum (aTS) was calculated in each phase. After harvesting, tubers were stored at 20oC for 15 days for curing and then stored at 10 or 20°C to quantify the percentage of sprouted tubers and the number of sprouts per tuber at 0, 30, 60 and 90 days of storage. The experiment was a factorial of four potato clones and two growth conditions, season and storage temperature, in a random design with four replications of 20 tubers. The environmental conditions of Julio de Castilhos in the spring resulted in a greater aTS from EM and TI to OS than those of Santa Maria, meaning that different crop locations and even seasons should be considered for making inferences about tuber sprouting based upon aTS. The management of storage temperature can promote or retard tuber sprouting, but its effect depends on the potato clone. Based upon combined correlation estimations, the aTS between EM-OS or between TI-OS is a good estimator for potato tuber sprouting.

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Physiological age index: a new, simple and reliable index to assess the physiological age of seed potato tubers based on haulm killing date and length of the incubation period

Cited by 47 publications

References 23 publications

Assessment of Potato Mother Tuber Vigour Using the Method of Accelerated Ageing

Assessment of Potato Mother Tuber Vigour Using the Method of Accelerated Ageing

The relationship of potato tubers chemical composition with selected physiological indicators

Thermal sum of potato plants and tuber sprouting

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