PHYSIOLOGICAL STUDIES ON GERMINATION AND FERTILIZATION OF SOPHORA PLANT 2.EFFECT OF SOME FERTILIZATION TREATMENTS ON GROWTH AND CHEMICAL COMPOSITION Of Sophora secundiflora SEEDLINGS

Abstract

An investigation was conducted at the nursery of Al-Zohriya Garden, Hort. Res. Inst., ARC, Giza, Egypt during 2018 and 2019 seasons to evaluate the positive effects of both Kristalon (20 N: 20 P: 20 K + microelements) and Active Grow a commercial liquid nutritive product that contains macro and micro-elements, GA3, amino acids, vit. B. and molas) when applied at 0, 1, 2, 3 and 4 g /ml, or ml for Kristalon /l for Active Grow as foliar spray, biweekly on growth and quality of Mescal-bean (Sophora secundiflora (Ort.) Lag ex.DC.) during the growth period in the nursery. The obtained results showed that spraying plants with all fertilization treatments traits exhibited significant increasing in the average of vegetative and root growth compared to the control treatment where the treatments was of the integrated mineral fertilizer Kristalon (20: 20: 20) at the rate of 3 g/l, the best treatment ,which gave the highest values in all traits, in both seasons. On the other hand the lowest values were found in the untreated plants (control), followed by the plants treated with the high rate of Active Grow (4 ml/l) treatment . The same trend was observed with regard to the chemical components of the leaves, with the Kristalon treatment at the rate of 3 g/l, which gave the highest values for the leaf contents of photosynthetic pigments (chlorophylla, b and carotenoids), total soluble sugars, nitrogen, phosphorus, potassium, as well as iron, manganese, magnesium and zinc compared to other treatments for the mean of the two seasons. Accordingly, foliar spraying of Mescalbean (Sophora secundiflora) seedlings with Kristalon compound (20 N: 20 P: 20 K + microelements) at the rate of 3 g/liter, once every two weeks during the growing season, can be recommended to obtain the fastest growth and high quality during the period of nursery care.