رش بعض المستخلصات النباتية و دورها في الصفات النمو الخضري و الزهري و الحاصل لثلاث أصناف من الباميا (Abelmoschus esculentus L.)‎

Abstract EN

An experiment was carried out in the fields of Agriculture College, University of Kufa during two successive seasons 2015 and 2016.

Treatments included three cultivars (Betra , Betera and Hessinawia), and seven spray treatments (licorice root extract at concentration 2.5 , 5 and 7.5 g.l-1 , and seaweed extract at concentration 1 , 2 and 3 ml.l-1 in addition to spray water to represent control treatment).

Plants sprayed twice , first at 4 leaves stage and second spary was30 days later.

Seeds sowed at 5th and 6th of April for both season respectively.

Split-plot design was adopted according to Randomized Complete Block Design (RCBD) where cultivar represented by main plot and spraying treatments in sub-plot Means comparison were performed using Least Significant Differences (LSD) at 5% level of significant.

Results showed that the superiority of Betra in plant height (80.85 and 81.99 cm) and number of fruits (19.43 and 23.16 fruit.plant-1), while Betera showed superiority in number of days to first flower formation on 50% of plants of experimental unit (59.87 and 56.96 days).

Moreover highest fruit set (55.89 and 55.96%), average fruit weight (20.4 and 19.4 g), plant yield (331.9 and 405.9 g), and total yield (12.291 and 14.430 ton.ha-1).

However Hessinawia plant had greater number of leaves (67.8 and 78.7 and leaf.plant-1), total leaf area (0.98 and 1.14 m2.plant-1).

Spraying of licorice extract at concentration of 7.5 g.l-1 resulted in the highest values of all parameters including vegetative growth, flowering and yield, The total yield from this treatment was (12.854 ton.ha-1), Seaweed extract at a concentration of 3ml.

L-1 on the other hand had less effect compared to licorice extract but still significantly different from the control in all tested parameters.