Causes for low tuber yields of transplants from <i>in vitro</i> 
potato plantlets of early cultivars after field planting

Lommen, W.J.M.

doi:10.1017/s002185969900698x

Cited by 28 publications

(28 citation statements)

References 9 publications

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“…The minimum tuber weights in the field and green house was of Sante and Ramose varieties respectively. Which, confirmed the findings by other researchers [5,20,21].…”

Section: Average Number and The Weight Of Potato Tuberssupporting

confidence: 93%

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Analysis of Genetical Diversity of Some of the Tetraploides Potato Cultivars Grown in Iran

Esfahai¹,

Pazoki²

2012

AJPS

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The genetical diversity of potato, Solanum tuberosum was assessed using morphological traits. To verify, how this diversity is distributed among the main potato varieties grown in Iran. A total of eleven potato varieties, Ramose, Sante, Shepody, Marfona, Maradona, Milova, Santana, Boren, Cosima, Granola and Agria, were evaluated under vivo and situ experimental conditions in Isfahan, conditions, Iran. Seven phenological, floral and morphological vegetative aerial descriptors, Growth Rate = CGR, Net Assimilation Rate = NAR, Leaf Area Duration = LAD, Leaf Area Ratio = LAR and specific Leaf Area = SLA were recorded. The descriptors were evaluated by SAS Software and their means comparison by DMRT test. Certain defined groups were observed, indicating that the diversity of the cultivars are structured with a considerable morphological variation in between the varieties with a very high significant growth indices.

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“…The minimum tuber weights in the field and green house was of Sante and Ramose varieties respectively. Which, confirmed the findings by other researchers [5,20,21].…”

Section: Average Number and The Weight Of Potato Tuberssupporting

confidence: 93%

“…Tables 6 and 7 show that, the maximum marketing yield among S. tuberosum varieties was belonged to Agria and the lowest one to Sante. The maximum level of tuber production was of Maradona and the lowest one in Sante, which is in agreement with others reports [5,20].…”

Section: The Effect Of Varieties On the Number And Length Of Stemssupporting

confidence: 93%

Analysis of Genetical Diversity of Some of the Tetraploides Potato Cultivars Grown in Iran

Esfahai¹,

Pazoki²

2012

AJPS

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“…Plântulas oriundas de sementes botânicas, comparadas às provenientes de tubérculos-semente, não apresentam uma fonte extra de energia para impulsionar o crescimento inicial, estando na dependência de condições favoráveis do ambiente (Lommen, 1999). No entanto, a utilização da geração plantular, definida neste estudo como G1, se justifica pela possibilidade de avaliar um grande número de indivíduos por unidade de área (~177 indivíduos por m 2 ), sem que haja limitação ao crescimento dos tubérculos, o que proporcionaria melhor expressão de caracteres de aparência e rendimento dos tubérculos de batata (Verissimo et al, 2012).…”

Section: Resultsunclassified

Correlação de caracteres de planta e tubérculo nas primeiras gerações de seleção de batata

et al. 2017

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Correlation of plant and tuber traits of potato in early generations of selectionThe aim of this work was to evaluate canonic correlation as a tool to identify plant and tuber traits for early selection of potato clones. The canonical correlation analysis was carried out in two generations (seedling and tuber) with 358 clones, representing nine segregating families. The seedling generation (G1) was produced in a screen house during the winter of 2008, and the tuber generation (G2) in the field during the fall season of 2009. The evaluations were: height of the main stem (EHP), fresh weight of the aboveground part (MFA), stolons (MFE) and tubers (MFT), number of tubers (NTC), tubers with elongated (TAL) and flattened shape (TAC), skin texture (ASP), pointed ends (PON), secondary growth (EMB), eye depth (PRG), days to breaking dormancy (DRD) and number of sprouts per tuber (NBT). The variability among families was significant for all traits in both generations, except for PON in the first and MFA, EMB and PRG in the second generation. Linear correlations between G1 and G2 were significant, positive and high for 12 out of 13 evaluated traits. Based upon canonical correlation analysis, there is an association between plant and tuber traits between generations. However, there is no general rule for early selection of clones applied for all families, the evaluation of clones being the best strategy to identify correlated traits between generations.

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“…Proper canopy development after field transplanting is crucial for achieving high yields. Glasshouse-raised transplants from very early cultivars can show an extremely poor field performance (Haverkort et al 1991a;Dixon 1993;Lommen 1999). This was shown to be caused by the relatively large portion of daily dry matter production immediately after transplanting being invested in tuber growth rather than in haulm growth, in early cultivars (Lommen 1999).…”

Section: Introductionmentioning

confidence: 99%

How Age of Transplants from In Vitro Derived Potato Plantlets Affects Crop Growth and Seed Tuber Yield After Field Transplanting

Lommen

2015

Potato Res.

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In vitro produced plantlets are used in potato seed systems for production of minitubers under protected conditions or for production of transplants to be transplanted to the field. Three field experiments were carried out to analyse how transplant age (Age) affected the field performance. In the main experiments, 2-, 3-and 4-week-old transplants of the very early cultivar Gloria (Exp. 1) and the mid-early cultivar Bintje (Exp. 2) were produced in a glasshouse. Exp. 3 was a check experiment in which 2-and 3-week-old transplants of cv. Gloria were produced in growth chambers under conditions that were non-inductive for tuberization (24-h photoperiod, high temperature). Ground cover (GC) was assessed weekly and weights of the tuber and canopy fractions were assessed at 0, 14, 28, 42, 56, 70 and 84 days after transplanting (DAT). Yield analysis [accumulated intercepted radiation (AIR), radiation use efficiency (RUE), total dry weight (TDW), harvest index (HI) and tuber dry matter concentration] was carried out; the fraction dry matter (DM) allocated to the tubers and the canopy was calculated for three 2-week intervals after field transplanting. When raised in the glasshouse, older transplants were more advanced in tuber formation and canopy growth than younger transplants and had a higher GC at transplanting. However, crops from younger transplants produced significantly higher fresh tuber yields than crops from older transplants in the later part of the growing period in Exp. 1; the same trend was observed in Exp. 2. AIR was the most important yield component affected by transplant age; RUE, HI and tuber dry matter concentration were not or not meaningfully affected by transplant age. In the first 2 weeks after field transplanting, a very high percentage of the DM produced (>85%) was allocated to tuber growth in crops from the oldest transplants. This reduced AIR severely. The results show clearly that seed crops from younger transplants will perform better than crops from older

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Causes for low tuber yields of transplants from in vitro potato plantlets of early cultivars after field planting

Cited by 28 publications

References 9 publications

Analysis of Genetical Diversity of Some of the Tetraploides Potato Cultivars Grown in Iran

Analysis of Genetical Diversity of Some of the Tetraploides Potato Cultivars Grown in Iran

Correlação de caracteres de planta e tubérculo nas primeiras gerações de seleção de batata

How Age of Transplants from In Vitro Derived Potato Plantlets Affects Crop Growth and Seed Tuber Yield After Field Transplanting

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