Development of beet cultivars under different soil water tensions

作者：Silva Alexsandro O^*; Silva Enio F F; Bassoi Luis H; Klar Antonio E

来源：Horticultura Brasileira, 2015, 33(1): 12-18.

DOI：10.1590/S0102-053620150000100003

• Beta vulgaris
• irrigation management
• water deficit

The water deficit generated by inadequate irrigation management can affect directly the crop development and yield. Hence, to evaluate the effects of water deficit on sugarbeet crop, an experiment was carried out in Botucatu, Sao Paulo state, Brazil, from April to June 2012, in a randomized block design with four replications. The treatments were six levels of soil water tension (15, 25, 35, 45, 55, 65 KPa) and two sugar beet cultivars (Early Wonder and Itapua 202), making a total of 48 plots. Shoot and root fresh mass, shoot and root dry mass, plant height, root diameter, total productivity and the relationship between the root and above ground parts of plants were measured. The increase in the soil water tension (lower soil water content) led to a reduction in plant growth and yield. Cultivar Itapua 202 presented lower plant growth and root yield than cv. Early Wonder, but the percentage of reduction depending on soil water tension was the same for both, whereas plants subjected to tension of 65 KPa presented lower levels of income and crop growth.

• 出版日期2015-3