Universidad Peruana Cayetano Heredia

Seed weight predicts seedling emergence, and extremely acid soil and low availability of Phosphorus are associated with poor plant performances in Lepidium meyenii Walpers (maca)

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dc.contributor.author Lozano-Canales, A.
dc.contributor.author Janampa-Santome, M.
dc.contributor.author Clark, D.
dc.contributor.author Gonzáles, W.L.
dc.date.accessioned 2019-07-04T17:00:23Z
dc.date.available 2019-07-04T17:00:23Z
dc.date.issued 2019
dc.identifier.uri https://hdl.handle.net/20.500.12866/6901
dc.description.abstract Lepidium meyenii Walpers (maca)is a Peruvian species cultivated in the high Andean region (ca. 4000 m.a.s.l.), highly praised for the nutritional properties of its hypocotyl. The benefits to human health and their relationship with the hypocotyl have been well investigated. However, few studies have addressed the factors affecting field crop performance and the improvement of agronomic practices. Here we evaluate the effect of soil properties (humidity, temperature, and fertility)and sowing method (ridge-furrow system and flat planting)on the biological performance of five seed accessions of maca in 6 experimental plots along an altitudinal gradient (3554–4442 m.a.s.l.). Plots located at both the lowest and highest altitudes had lower plant survival, vegetative growth, and hypocotyl size. Most of the differences among plots could be attributed to the acidity and the concentration of available phosphorus in the soil. In addition, low soil temperature and humidity negatively affected crop performance at different stages of plant development. The ridge-furrow system appeared to promote plant growth, although it did not favor plant survival under the unexpected climatic conditions experienced. Finally, seed weight was found to be a good predictor of seedling emergence and plant survival. en_US
dc.language.iso eng
dc.publisher Elsevier
dc.relation.ispartofseries Scientia Horticulturae
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Maca en_US
dc.subject Environmental stress en_US
dc.subject Phosphorus deficiency en_US
dc.subject Plant growth en_US
dc.subject Seed weight en_US
dc.subject Soil acidity en_US
dc.title Seed weight predicts seedling emergence, and extremely acid soil and low availability of Phosphorus are associated with poor plant performances in Lepidium meyenii Walpers (maca) en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1016/j.scienta.2019.04.059
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#4.01.05
dc.relation.issn 1879-1018


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