Researches on Amaranthus sp. Seed and Biomass Production in Pedoclimatic Conditions of Somesan Plateau, Romania

摘要

The Amaranthus genotype species are cultivated as ?pseudo cereals” because of their high content of carbohydrates, proteins and fats, comparable or even superior to cereals themselves. The experience aims to test the vegetative development of Amaranthus sp., in order to integrate it in the agricultural technologies, adaptated to climatic conditions from Somesan Plateau. Varieties tested are: Alegria, Amont, Pleisman, Golden, Mercado, Burgundi, Hopi Red Dye, Chihuahn, Opopeo, MT3, Plenitude and Intense Purpure. Results obtained in seeds production of Amaranthus sp. shows very significant positive production of variants with densities of 100,000 plants/ha. Interaction of the variety of Amaranthus sp. upon density is much more diversified on the yields obtained and shows in case of density 70,000 plants/ha superiority of the variants: Alegria, Amont, Golden and Plenitude, and in case of 100,000 plants/ha variants: Amont, Golden, Hopi Red Dye, Plenitude and Intense Purpure. Influence of variety of Amaranthus sp. on biomass production shows the variants with the highest productivity as it follows: Plenitude, Alegria, Amont, Intense Purpure. Influence of density on biomass productivity of Amaranthus sp. is similar with the seeds productivity, namely 100,000 plants/ha provides very significant positive production compared with the average of the variants.