EFFECT OF SELECTED PREPARATIONS ON SOME BIOMETRIC FEATURES OF ‘TARDIVA’ PANICLED HYDRANGEA (Hydrangea paniculata Siebold) DEPENDING ON THE IRRIGATION FREQUENCY

Abstract

One of the ways to reduce the water consumption by plants while maintaining their proper quality is to use substances that limit excessive transpiration. Three preparations at following concentrations: Moisturin (10%), Root-Zone (4.5%) and Vapor Gard (1%), were used in the experiment. Moisturin and Vapor Gard were applied in the form of a single spray, and Root-Zone as a single irrigation in mid July.The aim of the research was to assess the effect of several anti-transpirants on some biometric features of the ‘Tardiva’ panicled hydrangea depending on the frequency of irrigation. The following parameters were measured: area, perimeter, width and length of leaf blade, length and width of inflorescences, and the diameter of shoots. Treatment of H. paniculata cv. ‘Tardiva’ with Root-Zone and Moisturin anti-transpirants with a single irrigation every other day allows to reduce the water consumption and obtain shrubs of a quality comparable with plants irrigated twice a day. The use of Moisturin with a twice daily irrigation positively affected the length and width of inflorescences.

The Influence of Combined Pruning and the Use of Root Application of Two Biostimulants and Foliar Nutrition on the Growth and Flowering of Panicle Hydrangea Plants

“…The diameter of the inflorescences was smaller in pruned plants and larger in the case of the SKYFALL 'Frenne' variety. In comparison with the results of other experiments [5], the DI of the unpruned plants of Hydrangea paniculata was similar. Other researchers observed similar positive effects of pruning on the growth of ornamental plants.…”

“…In recent years, Panicle Hydrangea (Hydrangea paniculata Siebold) has become one of the most popular species due to its characteristic white inflorescences, long flowering period, a wide range of growing locations, relatively good frost resistance, and low susceptibility to diseases [4]. The attractive appearance and numerous varieties of Panicle Hydrangea encourage growers to increase its production in nurseries [5]. However, when these plants are grown in a nursery, shrubs have few inflorescences and shoots, which are significantly elongated and do not look attractive.…”

Caracterización productiva del aguacate (Persea americana Mill.) en la zona de alta montaña Veracruz, México

“…tabaci Lindeman; Thysanoptera: Thripidae), pero con esta actividad se incurre a romper el equilibrio de las cadenas tróficas, esto provocaría la presencia de 40 especies de trips en el cultivo de aguacate (Cambero et al, 2009). Para la nutrición del cultivo de aguacate, los productores utilizan 16 fuentes de fertilizantes con diferentes concentraciones, los fertilizantes con el nombre comercial Yara Mila Complex y Yara Hydran (Durlak et al, 2019), son manejados en dosis altas de fertilizantes (sintéticos y orgánicos) y el aporte de nutrimentos al año. Necesario para caracterizar los rendimientos con los siguientes elementos de S-MgO-B-Fe-Mn y Zn.…”