Stability of eight potato genotypes for sugar content and French fry quality at harvest and after storage

Affleck, I.; Sullivan, J. Alan; Tarn, Richard; Yada, Rickey Y.

doi:10.4141/cjps2011-066

Cited by 15 publications

(7 citation statements)

References 24 publications

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“…First, starch content and thus the mealiness grade of cooking potatoes vary because of enhanced assimilation and carbohydrate translocation (Smith 1977;Talburt and Smith 1997;Feltran et al 2004). Therefore, the involvement of Mg in photosynthesis and assimilate translocation has a direct effect (Cepl 1994;Poberezny and Wszelaczynska 2011;Affleck et al 2012).…”

Section: Potatomentioning

confidence: 99%

Role of magnesium fertilisers in agriculture: plant–soil continuum

et al. 2015

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Abstract. In this review, we summarise factors contributing to plant availability of magnesium (Mg) in soils, the role of Mg in plant physiological processes related to yield formation and abiotic stress tolerance, and soil and fertiliser parameters related to Mg leaching in fertilised soils. Mg is a common constituent in many minerals, comprising 2% of Earth's crust; however, most soil Mg (90-98%) is incorporated in the crystal lattice structure of minerals and thus not directly available for plant uptake. Plants absorb Mg from the soil solution, which is slowly replenished by soil reserves. Duration and intensity of weathering, soil moisture, soil pH, and root-microbial activity in soil are key factors that determine plant-available Mg release from soils. On the other hand, the amount of Mg released from soil minerals is generally small compared with the amounts needed to sustain high crop yield and quality. Thus, in many agro-ecosystems, application of Mg fertilisers is crucial. Magnesium is involved in many physiological and biochemical processes; it is an essential element for plant growth and development and plays a key role in plant defence mechanisms in abiotic stress situations. An early effect of Mg deficiency in plants is the disturbed partitioning of assimilates between roots and shoots because the supply of sink organs with photosynthetic products is impaired, and sugars accumulate in source leaves. Thus, optimal supply of Mg is required to improve crop tolerance to various stresses and to increase yield and quality parameters of harvested products. Unlike other cations, Mg is very mobile in soils because it is less bound to the soil charges. Therefore, Mg losses by leaching might occur in sandy soils with high water conductivity. Leaching of Mg in soils when applied with various water-soluble fertilisers may also vary depending on the fertiliser's chemical composition, granule size, and effect on soil pH and cation balance, as we discuss in detail.

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Section: Potatomentioning

confidence: 99%

Role of magnesium fertilisers in agriculture: plant–soil continuum

et al. 2015

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“…Potatoes for both fresh consumption and for industrial processing are stored for considerable durations. Hence, storage losses due to respiration and pathogen attack often cause severe economic losses, and hence the storage properties of potato tubers received much attention (Affleck et al 2012). The effect of N and K supply on storage properties of potato tubers was studied intensively (e.g.…”

Section: Potato (Solanum Tuberosum L)mentioning

confidence: 99%

The significance of magnesium for crop quality

2013

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Background The quality of agricultural and horticultural products and its modulation by fertilization has increasingly received attention. However, whereas the importance of magnesium (Mg) as an essential plant nutrient is well established, the impact of Mg nutrition on quality parameters has only been rarely addressed. Scope This review aims at evaluating the available knowledge on the influence of Mg on produce quality. A short discussion on the term quality as used in this review is followed by an overview of the various functions of Mg in plant metabolism in relation to quality aspects. Finally, the available literature on Mg-associated effects on crop quality is critically surveyed. The question whether Mg application beyond yield optimum further improves crop quality is specifically addressed. Conclusion Increasing Mg supply on Mg-deficient sites tends to increase the quality of agricultural crops, particularly when the formation of quality traits is dependent on Mg-driven photosynthesis and assimilate translocation within the plant. In fruits and vegetables, ratios of Mg to other nutrients like Ca and K were shown to be a more reliable indicator of the quality response than the Mg status alone. Moreover, it is concluded that Mg doses beyond those required for maximum yield rarely induce a further improvement of produce quality.

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“…Tai and Coleman (1999) were able to demonstrate a significant effect of growing location and storage temperature on potato chip color and in some cases detected significant genotype × environment (G×E) interactions. More recently, Affleck et al (2012) and Agblor and Scanlon (2002) showed that variance for french fry color and tuber sugar content are significantly affected by growing environments, storage duration, and their interaction. These findings are important for potato breeders to consider when designing their chipping trials since many in‐season and postharvest environmental factors influence and interact with the fry color of potato genotypes.…”

mentioning

confidence: 99%

Genotype × Storage Environment Interaction and Stability of Potato Chip Color: Implications in Breeding for Cold Storage Chip Quality

2013

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Potato (Solanum tuberosum L.) genotypes exhibit significant variation for chip color across different storage regimes. Lines that maintain light chip color after long postharvest storage durations and low storage temperatures are desirable to the potato industry. Since storage regimes vary among growers and processors, lines that exhibit stable chip performance across various storage regimes have a high probability of commercial success. The objective was to test if treating storage regimes as “environments,” analyzing genotype × storage environment interactions, and applying stability statistics can help identify desirable chip processing lines. To examine this, chip color of 47 breeding clones and six standard varieties was evaluated across eight storage environments. Chip color data was analyzed using stability metrics as well as stability‐adjusted selection indices. The effects of genotype, storage environment, and genotype × environment on chip color were significant, explaining 47, 24, and 17% of total variance, respectively. Types I, II, and III stable lines were identified through stability analyses. Type I stability was significantly correlated with mean chip color. The most desirable lines were identified under long and cold storage environments. Using Type I stability and stability‐adjusted indices, this study identified breeding clones for advancement, including W5840‐4, W6484‐5, and W6929‐1, which outperformed standard chipping varieties for chip quality and stability.

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Stability of eight potato genotypes for sugar content and French fry quality at harvest and after storage

Cited by 15 publications

References 24 publications

Role of magnesium fertilisers in agriculture: plant–soil continuum

Role of magnesium fertilisers in agriculture: plant–soil continuum

The significance of magnesium for crop quality

Genotype × Storage Environment Interaction and Stability of Potato Chip Color: Implications in Breeding for Cold Storage Chip Quality

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