Effect of foliar calcium fertilizer and nano-chitosan on the growth of rose seedlings

الملخص EN

This study was carried out during the spring agricultural season for the period from December 2021 to June 2022 in Baghdad governorate and in one of the private nurseries (al-Rafidain nursery) in the Zayouna area to study the effect of spraying with calcium and nano-chitosan on the growth, flowering and storage capacity of the Anglina rose bush.

the experiment included the first two factors, calcium and included three levels of fertilizer (the comparison without adding fertilizer, concentration 150 mg.

L-1, concentration 200 mg.

L-1) and spraying with 500 ml of fertilizer per seedling and between spraying with calcium and chitosan for three days, and the second factor spraying with nano-chitosan and at four levels (the comparison without addition, 50, 100 and 150) mg.

Litre-1 and the experiment were designed as a factorial experiment with three replications according to the complete random sectors (R.C.B.D).

the second experiment was stored, keeping flowers in the refrigerator at a temperature of 5 ° C in Polyethene bags with a complete random design (CRD).

then the results were compared with the LSD multinomial test to compare the averages at 5%.

foliar spraying with calcium at a concentration of 200 mg.

L-1 led to a significant increase and superiority in the vegetative and chemical growth characteristics represented in the total carbohydrate content of leaves.

foliar spraying of nano-chitosan at a concentration of 150 mg.

L-1 led to the superiority in vegetative and chemical characteristics and the total carbohydrate content of leaves.

the interaction between the two studied workers showed a significant effect in improving the chemical properties, as the spraying treatment with a concentration of 200 mg.

L-1 and nano-chitosan at a concentration of 150 mg.

L-1 was significantly superior to the carbohydrate content of leaves of 21.497 mg.100 mg.

L-1.

fresh weight, the percentage of phosphorous in the leaves was 0.326%, and the percentage of potassium was 2.637%.