Shoot and root responses of eight subtropical species grown in cupric hydroxide-treated containers

• Published in: HortScience Vol. 30; no. 2; pp. 249 - 251
• Main Authors: Svenson, S.E. (University of Florida, Fort Lauderdale, FL.), Johnston, D.L, Coy, B.L
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Alexandria, VA American Society for Horticultural Science 01.04.1995
• Subjects: Agronomy. Soil science and plant productions; ALTURA; ANGIOSPERMAS; ANGIOSPERME; BEGONIACEAE; Biological and medical sciences; CEDRELA ODORATA; COBRE; CONTENIDO DE MATERIA SECA; CRECIMIENTO; CROISSANCE; CUIVRE; CULTIVO EN CONTENEDOR; CULTURE EN CONTENEUR; DIFERENCIAS BIOLOGICAS; DIFFERENCE BIOLOGIQUE; ERIOBOTRYA JAPONICA; FITOTOXICIDAD; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; HAUTEUR; HIDROXIDOS; HYDROXYDE; INDICE DE CRECIMIENTO; PEPEROMIA; PHYTOTOXICITE; PLANTAS DE MACETAS; PLANTE EN POT; PLANTULAS; PLANTULE; RACINE; RAICES; RECIPIENT; RECIPIENT DE CULTURE; RECIPIENTE DE CULTIVO; RECIPIENTES; SCHEFFLERA; SWIETENIA; TALLO; TAUX DE CROISSANCE; TENEUR EN MATIERE SECHE; TIGE; Vegetative propagation. Micropropagation; Vegetative propagation. Sowing and planting. Harvesting; Subtropical zone; Root; Growth; Chemical treatment; Dicotyledones; Angiospermae; Container growing; Above ground plant part; Spermatophyta; Copper oxide
• ISSN: 0018-5345; 2327-9834
• DOI: 10.21273/hortsci.30.2.249

The effect of Cu(OH)2 applied to interior container surfaces on shoot and root responses was evaluated on eight species cultivated in subtropical regions. Species studied were Cedrela odorata L.; Eriobotrya japonica (Thunb.) Lindl.; Leea coccinea Planch.; Peperomia serpens (Swartz.) Loud.; Peperomia obtusifolia (L.) A. Dietr.; Radermachera sinica (Hance) Hensl.; Schefflera actinophylla (Endl.) Harms; and Swietenia mahagoni (L.) Jacq. No foliar Cu toxicity symptoms developed on any species during the study. Swietenia mahagoni seedlings grew faster in height and had larger shoot: root ratios when grown in Cu(OH)2-treated containers than in nontreated containers. Leea coccinea seedlings were taller and produced more shoot dry weight when grown in Cu(OH)2-treated than in control containers. Applying Cu(OH)2 did not influence shoot growth of the other six species studied. Root coverage reduction on the exterior of the rootball in Cu(OH)2-treated containers was excellent for all species studied, and coverage was completely eliminated in three species. Shoot and root responses to Cu(OH)2-treated containers varied among subtropical species, which is consistent with shoot and root responses among temperate species