The study "Distance between rows and plants in two ecotypes of canihua (Chenopodium pallidicaule Aellen) in the northern Altiplano" was conducted during the agricultural period of 1999-2000 in the community of Achaca, Tiahuanaco canton, Ingavi province, department of La Paz, Bolivia. It was at 3854 meters above sea level, 16°35' South latitude by 68°41' West longitude. Precipitation was 474.6 mm and the soil was a loose sandy texture. The genetic material was composed of the ecotypes of yellow Lasta, red Lasta, yellow Saihua, and red Saihua, from the Belén Experimental Station, part of the Faculty of Agronomy, San Andrés Higher University. With the objective to evaluate the effect of distance between rows and between plants on the agronomic behavior of two ecotypes of Canihua in the northern Altiplano, planting took place on December 20, 1999, in rows 20, 40, and 60 cm apart, at a density of 4 kg/ha, all of it under a random block design with plots sub-subdivided. The principal plot set the distance between rows, the subplot set the distance between plants, and the sub-subplot the different ecotypes. Thirty-five days after planting the plants were thinned by hand, and with the use of a cord they were located at pre-established distances of 10, 20, and 30 cm between plants. The effects of the different distances on the ecotypes gave the following results and principal conclusions: The height and stem width of canihua was directly proportional to the different distances between plants and rows, and inversely proportional to the number of plants per area. The maximum values reached for height (21.4 cm) and diameter (2.5mm) occurred with 60 cm between rows and 101,852 plants per hectare. Also, the yellow Saihua ecotype was taller than the rest of the ecotypes at 19.1 cm. As for diameter, the ecotypes presented statistically similar behavior.
| Identifer | oai:union.ndltd.org:BGMYU2/oai:scholarsarchive.byu.edu:etd-6397 |
| Date | 01 January 2002 |
| Creators | Marín Parra, Wilfredo Pablo |
| Publisher | BYU ScholarsArchive |
| Source Sets | Brigham Young University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
| Coverage | Altiplano, La Paz (Bolivia) |
| Rights | http://lib.byu.edu/about/copyright/ |
Page generated in 0.0017 seconds