EFFECT OF APPEND HUMIC ACID , LICORICE SPRAYING ON GROWTH , YIELD AND BULB FLAVONOIDS CONTAIN OF ONION (Allium cepa L.) | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 15, Issue 1, March 2015, Pages 9-19 | ||
| Author | ||
| Thamir Abdulla Zahwan | ||
| Abstract | ||
| Field experimental was conducted in Horticulture station researches- Agriculture Collge – Tikrit university through the winter season 2012-2013 to study the Humic acid , and licorice extract spraying effect on growth and yield of Onion (Allium cepa L.) var. Taxas Grano early and head contents of some Flavonoids . The experiment was applied the RCBD with three replicates including 8 treatments ,Humic acid were added in four levels ( 0 , 4 kg.hect¹ , 6 kg.hect¹, 8 kg.hect¹) and licorice extract where spraying with two levels( 0 and 10 gr.l¹ ) in two dates , the first one after culturing with 3 months and the second after one month after the first one .The results showed superiority of licorice extract spraying significantly in plant height , tuber blade number , bulb weight ,bulb volume ,bulb diameter and Kaempferol and Quercetin conc. Which reached to 55.84 cm , 15.91 blade .plant¹ ,74.76 gm . bulb¹ , 4.84 mm. b¹ , 78,20 cm. b¹ , 1472 µg .ml¹, 964.3 µg .ml¹ suceffuly . compared with control ( without spraying ) , while the addition of Humic acid had superiority at level 6 kg . in plant height 58,20 cm.p¹ , Dry weight of leaves 20.30 gm,p¹ bulb rate weight 76.90 gm , bulb diameter 4.830 mm. b¹ , bulb volume 80.70 cm², b¹ with less value of control , which the treatment of Humic acid in level 8 kg . h¹ had superiority significant in tubular leave number , Kaempferol , Quercetin which reached 17.79 blade .p¹ , 1760 µg .ml¹ and 1065 µg .ml¹ suceffuly compared with control .The interaction between 10 gm of licorice extract and 6 kg .h¹ of Humic acid had superiority in plant height , bulb weight , bulb volume and Kaempferol conc. Which the interaction of 10 gm licorice extract with 8 kg .h¹ had superiority effect compared with other treatment in tuber blade number and fresh weight of bulb and diameter of bulb and Quercetin conc. | ||
| Keywords | ||
| Humic Acid; licorice; Flavonoids; Onion | ||
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