Influenced of seaweed extracts and its magnetization in growth and yield of broccoli

الملخص EN

The experiment was carried out in private field in north of Babylon province at growth winter season 2017-2018, to evaluate the performance of magnetic seaweed extracts and its foliar application in the growth and yield of Broccoli (Brassica oleracea var.

italica L.) cultivar Paraiso.

The experiment was comprised of the seaweed extract concentrations of S0: 0; S1: 2 mL·L-1 alga 600; S2: 4 mL·L-1 alga 600; S3: 2 mL·L-1 alga Al-zuhoor and S4: 4 mL·L-1 alga Al-zuhoor combined with the magnetic seaweed extract: control included MF0: without magnetic; MF1:750 guess magnetic field, or MF2: 1500 guess magnetic field.

The experiment was arranged in a split-plot system within a Randomized Complete Block Design (RCBD) with magnetics extract as the main plots and seaweed extracts treatment as the subplot with 3 replications.

The result showed the interaction between 1500 guess magnetic field and 2 mL∙L-1 alga Al- zuhoor achieved significated plant height 77.67 cm, number of leaves 28.33 leaf plant-1 , secondary heads 9.67 head.

plant-1 and head diameter 25.33 cm, also the treatment of MF2 with S1 arrived to 25.33 cm.

The interaction of 4 mL∙L-1 alga 600 and without magnetic achieved head weight 1452 gm and total yield 34.07 ton.ha-1 .

The interaction of 4 mL∙L-1 alga Al- zuhoor and 1500 guess magnetic field achieved greater leaves area 8246 cm2 and heaviest secondary head 322.07 gm.

The best response in plant growth, increased the head yield, with 2 mL∙L-1 alga Al- zuhoor extract and without magnetic field.