Effect of Acetate and Phosphorous Spraying on Some Vegetative and Chemical Growth Characteristics of Ocimum Basilicum Vare Viride
Abstract
The experiment was carried out in a plastic house built for this purpose in the village of Sayed Hussein, affiliated to Al-Rifai district, north of Dhi Qar governorate for the agricultural season 2021. For the purpose of studying the effect of spraying acetate and phosphorous and their interactions on some vegetative and chemical traits of shrubby basil plant. The study included (16) treatments which are spraying the plant with four levels of acetate (0, 25, 50 and 75 mg-1) in the form of acetic acid. And four levels of phosphorous (Dipotassium phosphate K2PO4). A pot experiment was conducted, where 1.5 kg of sandy mixture was placed in each pot, with peat moss added to it in a ratio of 1: 1 on the basis of volume. The traits were studied after 80 days of germination, where the height of the plant was measured and weight was measured dry total vegetative, surface area and measure the percentage of carbohydrates, proteins and total chlorophyll from the chemical content of plant leaves.
The acetate concentration significantly affected the characteristics of the vegetative mass such as plant height, dry weight of vegetative mass and leaf area, and the results were (59.15 cm, 17.07% and 18.08 cm. leaf-1) respectively at Concentration of 75 mg.-1(acetate spray) as acetate affected the chemical content of total chlorophyll, protein and carbohydrates, the results were 110.39 mg/gm fresh weight, 18.66 mg.gm fresh weight, and 45.95 mg.gm-1 fresh weight) at a concentration of 75 mg. Liter -1 (acetate spray)
And the effect of phosphorous spray was significantly superior in increasing all the above-mentioned traits. At a concentration of 8 mg-1, the results were (60.47 cm: 16.69 % and 18.17 cm. leaf -1) for plant height, percentage of substance Leaf and leaf area, respectively. As for the effect of phosphorous spray on chemical properties, the results were (111.17 mg.100 gm-1 of fresh weight and 18,055 mg.gm of weight -1Soft 41.63 mg. g-1(Fresh weight) for total chlorophyll, protein and carbohydrates, respectively. It also notes that the interaction between the two experimental factors had a significant effect on the studied vegetative characteristics when treating 75 mg. liter-1 of acetate spray and 8 mg. liter -1of phosphorous spray, and the results were (68.8 cm, 18.46% and a 19.2 cm. leaf -1) for plant height, dry matter and leaf area.
As for the effect of the interaction on the chemical properties and the same treatment mentioned. The results were (112.19 mg.100gm fresh weight, 19.95 mg.gm-1 fresh weight and 51.97 mg.gm-1 fresh weight) for chlorophyll, protein and carbohydrates, respectively.
