RESPONSE OF VEGETATIVE GROWTH FOR THE TREATMENT OF ORGANIC NUTRIENT AND CALCIUM CHLORIDE FOR GERBERA PLANT Gerbera jamesonii

Abstract

This study was conducted in the lath house, Horticultural Department, College of Agriculture – University of Baghdad- Jadriya during the spring and autumn seasons 2015 to investigate the influence of humic acid spray and calcium chloride spray on f “Yanara” gerbera cultivar. This study included two factors; humic acid spray (H) and calcium chloride spray (Ca). The first factor four levels were used, 0, (H0), 5 (H5), 7.5 (H7.5) and 10 (H10) ml.L-1 and four levels of calcium chloride, 0 (Ca0), 50 (Ca50), 100 (Ca100) and 150 (Ca150) mg.L-1. Each treatment replicated three times with a factorial experiment using RCBD. Five plants in experimental unit and the number of plants used was 240 trees. The experimental results showed that humic acid at 10 ml.L-1 and calcium chloride at 150 mg.L-1 (Ca150H0) significantly gave the highest leaves number of 11.20 and 11.47 leaves, the highest leaf area of 195.21 and 210.25 cm2, the highest plant dry weight of 16.92 and 17.95gm, the highest leaf nitrogen content of 2.50 and 2.45 %, highest leaf phosphor content of 0.37 and 0.44% and the highest leaf calcium content of 3.17 and 3.45% for both seasons, respectively. The lowest value of these parameters was found in the control (Ca0H0) treatment. It could be concluded of this experiment that the humic acid at level H10 and calcium chloride at level Ca150 improved vegetative characteristics and leaf mineral content gerbera plant cv. Yanara

Response of Growth and Yield of True Potato Seed Plants to Foliar Application with Organic Nutrients

“…Increased leaf content of chlorophyll due to nutrient spraying can be attributed to nutrient harboring growth-promoting substances and nutrients that promote vegetative growth and thus increase chlorophyll in leaves [14]. These results in accordance with other researchers [15] and [16] when they sprayed different nutrients on potato plant.…”

“…L -1 on water melon plant. And agreement with [21] and [16] when they sprayed different nutrients on potato plant.…”

Effect of Licorice Organic Media and Disper Bloom Spraying on vegetative growth and Flowering Gerbera Jamesonii L.

“…The experiment was carried at the greenhouse College of Agricultural Engineering Sciences \ University of Baghdad for the autumn season 2022-2023, planted board were made with an area of 1 x 0.75 m, as the medium mixed licorice with the soil and the plants were planted at 25 cm between one plant and another and 50 cm between one board and another. The soil was analyzed before planting for its chemical and physical properties before mixing with organic medium Table (3), Two variables were analyzed in this experiment.…”

“…, the plants has short rhizomatous stem, perennial herbs [1,2]. The plants have economic value derived from the trade of flowers, as statistics indicate that the states, the United States of America is the first country in the world in the production of gerberas, then India and Canada, as the number of flowers harvested in Canada for the year 2015 (324,258,873 flowers), an increase of about 7000000 flowers for the year 2015 when it was (317,575,755 flowers [3]. It's used in the making of flowers bouquets due to their different colors, large size and diameter of flowers, length of their necks, and their vase-life [3].…”