Influence of Cation Proportions of the Nutrient Solution on Tipburn Incidence in Strawberry Plants
Influence of Cation Proportions of the Nutrient Solution on Tipburn Incidence in Strawberry Plants
复制标题
营养液中阳离子比例对草莓植株烧伤发生率的影响
DOI：
10.1080/01904160903093836
复制
发表时间：
2009
影响因子：
2.1
通讯作者：
J. Maroto
中科院分区：
文献类型：
--
作者：
A. S. Bautista;S. López;A. Martínez;B. Pascual;J. Maroto
摘要以Camarosa草莓为试验材料，研究了6种不同钾、钙、镁配比的营养液对叶片尖烧发生率和产量的影响。建立了响应模型来预测倒伏发生率、产量和果实重。营养液中钙含量高是第一季高产量的决定因素，而镁含量高是后两个季节高适销产量的基础。在2001年和2002年，高Mg水平的果实平均质量较高，而在2000年，最低果实质量与营养液中低Ca水平一致。2000年和2002年的倾倒病发病率模型表明，中高水平Mg和中低水平Ca的溶液导致倾倒病的发生率更高。相反，在2001年，高钾含量出现了最高的倾倒率。
ABSTRACT To determine their influence on leaf tipburn incidence and yields six nutrient solutions with different proportions of potassium (K), calcium (Ca), and magnesium (Mg) were tested in ‘Camarosa’ strawberry plants. Response models were made to predict tipburn incidence, yields and fruit weight. A high Ca proportion in the nutrient solution was determinant for high yields in the first season, while a high Mg content was fundamental for high marketable yields during the two last seasons. In 2001 and 2002, the average fruit weight was higher with high Mg levels, and in 2000 the lowest fruit weights coincided with low levels of Ca in the nutrient solution. The models for tipburn incidence in 2000 and 2002 indicated that solutions with intermediate to high levels of Mg and intermediate to low levels of Ca resulted in a more frequent incidence of tipburn. Conversely, in 2001, the highest tipburn incidence appeared with high K contents.