A study of Three Planting Dates and Spraying with Zinc, Boron and Polyamine (Putrescine) on the Qualitative Characteristics of Broccoli

Author:

Al-Issawi Ali Khalif,Al-Mohammedi Omar Hashim Muslah

Abstract

Abstract The experiment was carried out during the two winter agricultural seasons 2020-2021 AD and 2021-2022 AD in Anbar Governorate / Fallujah District, 60 km west of Baghdad on the banks of the Euphrates River. The factorial experiment included 18 treatments of 2x3x3 using a factorial experimental within split-plot according to the randomized complete block design. Planting dates were placed in the main plot, zinc and boron factors in the sub-plot, and the polyamines puterscine in sub-plot.They distributed randomly within the dates with three replications, so that the treatments become 54, the results showed that the second date was superior in the percentage of chlorophyll, nitrogen, phosphorus and potassium, reaching 313.99, 299.76 mg 100 g−1, 4.51, 4.30%, 0.37, 0.36%, 1.37, 1.30% for the two seasons, respectively, the third date excelled by giving the highest vitamin C date, which reached 294.07 and 292.97 mg g−1, while the triple interaction showed the superiority of the plants planted on the second date of the first and second seasons between the planting date and spraying with zinc, boron and spraying polyamine, the highest rate in the percentage of chlorophyll and the percentage of nitrogen, phosphorus and potassium, which amounted to 339.70, 325.83 mg 100 gm−1, 4.85, 4.56%, 0.40, 0.44%, 1.58, and 1.56%, compared to the lowest rate for the third date, which amounted to 243.73 and 236.06 mg 100 g−1, 2.97, 2.49%, 0.25, 0.23%, 0.89, 0.96% for the two seasons, respectively.

Publisher

IOP Publishing

Subject

General Medicine

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