Access the full text.
Sign up today, get DeepDyve free for 14 days.
J. Angus, R. Cunningham, M. Moncur, D. Mackenzie (1980)
Phasic development in field crops I. Thermal response in the seedling phaseField Crops Research, 3
Magali García, D. Raes, S. Jacobsen, T. Michel (2007)
Agroclimatic constraints for rainfed agriculture in the Bolivian AltiplanoJournal of Arid Environments, 71
Ruojing Wang, Y. Bai, N. Low, Karen Tanino (2006)
Seed size variation in cold and freezing tolerance during seed germination of winterfat (Krascheninnikovia lanata) (Chenopodiaceae)Botany, 84
G. Cussans, S. Raudonius, P. Brain, S. Cumberworth (1996)
Effects of depth of seed burial and soil aggregate size on seedling emergence of Alopecurus myosuroides, Galium aparine, Stellaria media and wheatWeed Research, 36
Isumi Washitani, A. Takenaka (1984)
Germination responses of a non‐dormant seed population of Amaranthus patulus Bertol. to constant temperatures in the sub‐optimal rangePlant Cell and Environment, 7
Andrés Zurita-Silva, F. Fuentes, P. Zamora, S. Jacobsen, Andrés Schwember (2014)
Breeding quinoa (Chenopodium quinoa Willd.): potential and perspectivesMolecular Breeding, 34
J. Harper, P. Lovell, K. Moore (1970)
The Shapes and Sizes of SeedsAnnual Review of Ecology, Evolution, and Systematics, 1
D. Gade (2008)
Ethnobotany of cañihua (Chenopodium pallidicaule), rustic seed crop of the AltiplanoEconomic Botany, 24
D. Trudgill, A. Honěk, D. Li, N. Straalen (2005)
Thermal time – concepts and utilityAnnals of Applied Biology, 146
M. L. Carmen (1984)
Acclimatization of quinoa (Chenopodium quinoa Willd) and cañihua (Chenopodium pallidicaule Aellen) to Finland, 23
Matilde Saponetti, M. Grimaldi, M. Scrima, C. Albonetti, S. Nori, A. Cucolo, F. Bobba, A. D'Ursi (2014)
Aggregation of Aß(25-35) on DOPC and DOPC/DHA Bilayers: An Atomic Force Microscopy StudyPLoS ONE, 9
R. Parsons (2012)
Incidence and ecology of very fast germinationSeed Science Research, 22
N. Simmonds (1966)
Plant and seed colours in cañáhua, Chenopodium pallidicauleHeredity, 21
C. D. Brickell, C. Alexander, J. C. David, W. L. A. Hetterscheid, A. C. Leslie, V. Malecot, J. Xiaobai (2009)
International Code of Nomenclature for Cultivated Plants
J. Vacher (1998)
Responses of two main Andean crops, quinoa (Chenopodium quinoa Willd) and papa amarga (Solanum juzepczukii Buk.) to drought on the Bolivian Altiplano: Significance of local adaptationAgriculture, Ecosystems & Environment, 68
D. Trudgill, J. Perry (1994)
Thermal time and ecological strategies - a unifying hypothesisAnnals of Applied Biology, 125
J. Bois, T. Winkel, J. Lhomme, J. Raffaillac, A. Rocheteau (2006)
Response of some Andean cultivars of quinoa (Chenopodium quinoa Willd.) to temperature: Effects on germination, phenology, growth and freezingEuropean Journal of Agronomy, 25
D. Trudgill, G. Squire, K. Thompson (2000)
A thermal time basis for comparing the germination requirements of some British herbaceous plantsNew Phytologist, 145
A. Robertson (1974)
Symposium No. 10: Animal genetics. Introduction by the Chairman.Genetics, 78 1
S. Arnold, J. Monteith (1974)
Plant Development and Mean Temperature in a Teesdale HabitatJournal of Ecology, 62
S. Jacobsen, C. Monteros, L. Corcuera, L. Bravo, J. Christiansen, Á. Mujica (2007)
Frost resistance mechanisms in quinoa (Chenopodium quinoa Willd.)European Journal of Agronomy, 26
Karina Ruiz, S. Biondi, R. Oses, I. Acuña‐Rodríguez, F. Antognoni, Enrique Martinez-Mosqueira, A. Coulibaly, Alipio Canahua-Murillo, M. Pinto, Andrés Zurita-Silva, D. Bazile, S. Jacobsen, M. Molina‐Montenegro (2014)
Quinoa biodiversity and sustainability for food security under climate change. A reviewAgronomy for Sustainable Development, 34
S. Jacobsen, Á. Mujica, R. Ortiz (2003)
The Global Potential for Quinoa and Other Andean CropsFood Reviews International, 19
S. Jacobsen, C. Monteros, J. Christiansen, L. Bravo, L. Corcuera, Á. Mujica (2004)
Plant responses of quinoa (Chenopodium quinoa Willd.) to frost at various phenological stagesEuropean Journal of Agronomy, 22
D. Moot, W. Scott, Ajishnu Roy, A. Nicholls (2000)
Base temperature and thermal time requirements for germination and emergence of temperate pasture speciesNew Zealand Journal of Agricultural Research, 43
B. Condori, R. Hijmans, J. Ledent, R. Quiroz (2014)
Managing Potato Biodiversity to Cope with Frost Risk in the High Andes: A Modeling PerspectivePLoS ONE, 9
S. Jacobsen (2011)
The Situation for Quinoa and Its Production in Southern Bolivia: From Economic Success to Environmental DisasterJournal of Agronomy and Crop Science, 197
S. Jacobsen, A. Bach (1998)
The influence of temperature on seed germination rate in quinoa (Chenopodium quinoa Willd.Seed Science and Technology, 26
A. Bonifacio (2003)
ChenopodiumSp.: Genetic Resources, Ethnobotany, and Geographic DistributionFood Reviews International, 19
C. Andreasen, Andrius Kemezys, R. Müller (2014)
The Effect of Fertilizer Level and Foliar-applied Calcium on Seed Production and Germination of Gerbera hybridaHortscience, 49
E. Small (2013)
42. Quinoa – is the United Nations’ featured crop of 2013 bad for biodiversity?Biodiversity, 14
G. Penny, J. Neal (2003)
Light, Temperature, Seed Burial, and Mulch Effects on Mulberry Weed (Fatoua villosa) Seed Germination1, 17
Cañahua (Chenopodium pallidicaule) is grown in the Altiplano of Bolivia and Peru, between 3810 and 4200 m a.s.l. Rural indigenous households have cultivated the cañahua as a subsistence crop for millennia. The seeds have a high content and quality of protein. We studied the relation between the following: (i) temperature and seed germination and (ii) the effect of temperature and sowing depth on seedling emergence of five cultivars and one landrace. Three experiments were conducted as follows: (i) seeds of a cultivar were germinated in Petri dishes at six temperatures (3, 5, 10, 14, 20 and 24 °C), (ii) sown at five depths (0, 5, 10, 25 and 50 mm) in a mixed peat soil substrate at three temperatures and (iii) one landrace (Lasta) and 5 cultivars (Lasta and Saihua growth habit) were sown in 6 depth (0, 5, 10, 25, 35 and 50 mm) in a sandy loam at two temperatures (5 and 15 °C). Temperature had significantly effect on the germination percentages of the plants (P < 0.001). Seeds germinated at the lowest temperature (3 °C). The estimated base temperature was close to 0 °C. A polynomial function described well the relation between time to 50% germination (t50) and temperature in the interval from 3 to 24 °C resulting in a linear relationship between germination rate and temperature. Shallow sowing depth (5–25 mm) resulted in 80% germination at 15 °C. There were significant differences of emergence in relationship to burial depth (P < 0.001). Only few seedlings emerged when seeds were sown at 50 mm depth. We did not find significant differences in emergence of seedlings between Lasta and Saihua at 15 °C. Nevertheless, at 5 °C, seedlings of cañahua belonging to the Lasta growth habit form did have higher germination rate as were shown for the Kullaca cultivar and the Umacutama landrace. This may be attributed to larger seed size of these cultivars.
Journal of Agronomy and Crop Science – Wiley
Published: Dec 1, 2016
Keywords: ; ; ; ;
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.