تأثير الرش الورقي بالبورون والزنك والطحالب البحرية في بعض الصفات المورفسيولوجية والنوعية لهجين من الذرة الصفراء العلفية الحبية (. (Zea mays L
Keywords:
Yellow corn forage grain, Boron, Zinc, Seaweed extract, Grain yield, Sugar corn.Abstract
This research was conducted at the Snawber Research Station of the General Commission for Agricultural Scientific Research in Lattakia Governorate, starting from May during the agricultural season of 2023 AD, by planting grains of a hybrid variety of fodder yellow corn in experimental plots according to a randomized complete block design (RCBD) and with three replicates, as this research aimed to study the effect of spray treatments at concentrations of (100-200 mg/L) of boron B and (10-20 mg/L) of zinc Z and (1-2 ml/L) of seaweed extract S, and the combined effect of the two elements and the seaweed extract together on some morphological and qualitative characteristics of the studied yellow corn variety.
Plant height (cm), total leaf area (cm2), crop growth rate (g/m2/bum), and total content of soluble sugars and proteins % were measured.
The results showed an increase in most growth indicators with an increase in the spraying rate of boron, zinc, and algae extract. The highest plant height reached (214 cm) compared to the control, which reached (137.6 cm). The highest leaf surface area reached (12,856 cm2/plant) compared to the control, which reached (6,948 cm2/plant). The highest crop growth rate reached (1.53 g/m2/day) compared to the control. It reached (0.17 g/m2/day).The results also showed that foliar spraying with boron, zinc, and algae extract at concentrations (200 mg/l - 20 mg/l - 2 ml/l) led to a significant increase at (P>0.05) in the total sugar content of the grain, as the highest sugar content reached (10.94%) compared to the control (6.33%). As for the protein percentage, no significant differences were observed.According to these results, yellow corn can be sprayed with boron, zinc, and algae extract at concentrations (200 mg/l - 20 mg/l - 2 ml/l) alone or in combination, due to their positive role in improving growth characteristics and increasing grain yield.
