Effect of Nutrimental Stress on the Pigment Content of the Heliophytic Poinsettia （Euphorbia Pulcherrima cv. Valenciana）

Nutrimental requirements of heliophytic poinsettias have not yet been determined, this information is essential for developing an adequate technological package to orient producers in its management. The behavior of the plant under nutritional stress needs to be known by the application of a hydropo...

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Bibliographic Details
Published in:农业科学与技术：A 2012, Vol.2 (6), p.833-839
Main Author: Yolanda Leticia Femandez-Pavia Maria Teresa B. Colinas-Leon Rogelio Castro-Brindis Tito Rojas Roque Gustavo Adolfo Baca-Castillo
Format: Article
Language:Chinese
Subjects:
一品红
叶绿素含量
品种
圣诞花
类胡萝卜素
营养盐
西亚
颜料
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Summary:Nutrimental requirements of heliophytic poinsettias have not yet been determined, this information is essential for developing an adequate technological package to orient producers in its management. The behavior of the plant under nutritional stress needs to be known by the application of a hydroponic system. The objective of the present work was to evaluate the physiological effect of induced deficiencies of five macronutriments （nitrogen, phosphorous, potassium, calcium, and magnesium） and its influence on the pigment production of the poinsettia Euphorbia puleherrima cv. ＂Valenciana＂. The study was made during 2010 at the Research Unit ＂Dr. Ramon Fernandez Gonzalez＂ in Texcoco, State of Mexico. Six treatments were tested during 240 days from transplant in a totally randomized experimental design. Chlorophylls contents were determined at the beginning of the experiment. At the end of the treatment period, the contents of nutrients, chlorophylls, leaf carotenoids and bract anthocyanins were determined. The
ISSN:2161-6256