BoulangerPelletier2016

Référence

Boulanger Pelletier, J. (2016) Rôle des nutriments dans l'enracinement et le rendement en fruits chez la chicouté (Rubus chamaemorus). Mémoire de maîtrise, Université Laval. (URL )

Résumé

Cloudberry (Rubus chamaemorus L.) grows naturally in ombrotrophic peatlands. Cloudberry cultivation in peatland after peat extraction has ceased could maintain economic activities on these sites and increase fruit availability for future commercialization. However, the establishment of cloudberry cultivation face some problems, such as low survival rate of the transplants during the first year and a very variable fruit yield. Fertilization and auxin treatments were tested to increase root production on transplants at planting in order to reduce their mortality. Fertilizers increased root length but only at the end of the season. Plant growth was also improved by the fertilization treatments. On the contrary, the application of auxin led to a high mortality of transplants. None of the treatment applied improved transplant survival at planting. In order to better understand the nutritional limitations that cause low yield, we used a compositional nutrient diagnostic (CND) to identify nutrient imbalances. CND analysis indicated that low yield plots are characterized by higher foliar concentrations of manganese, iron, sulfur and copper. The present results will help improve fertilization of cloudberry when planted in cutover peatland, but more research is needed to reduce transplant mortality at planting.

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@MASTERSTHESIS { BoulangerPelletier2016,
    TITLE = { Rôle des nutriments dans l'enracinement et le rendement en fruits chez la chicouté (Rubus chamaemorus) },
    AUTHOR = { Boulanger Pelletier, J. },
    SCHOOL = { Université Laval },
    YEAR = { 2016 },
    NOTE = { CEFTMS, Lapointe, L. },
    ABSTRACT = { Cloudberry (Rubus chamaemorus L.) grows naturally in ombrotrophic peatlands. Cloudberry cultivation in peatland after peat extraction has ceased could maintain economic activities on these sites and increase fruit availability for future commercialization. However, the establishment of cloudberry cultivation face some problems, such as low survival rate of the transplants during the first year and a very variable fruit yield. Fertilization and auxin treatments were tested to increase root production on transplants at planting in order to reduce their mortality. Fertilizers increased root length but only at the end of the season. Plant growth was also improved by the fertilization treatments. On the contrary, the application of auxin led to a high mortality of transplants. None of the treatment applied improved transplant survival at planting. In order to better understand the nutritional limitations that cause low yield, we used a compositional nutrient diagnostic (CND) to identify nutrient imbalances. CND analysis indicated that low yield plots are characterized by higher foliar concentrations of manganese, iron, sulfur and copper. The present results will help improve fertilization of cloudberry when planted in cutover peatland, but more research is needed to reduce transplant mortality at planting. },
    URL = { https://corpus.ulaval.ca/jspui/handle/20.500.11794/27026 },
    TIMESTAMP = { 2019-10-10 },
}

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