THE RESPONSE OF MATHIOLA PLANT TO THE FOLIAR APPLICATION OF THIAMINE AND ROSELLE EXTRACT ON SOME VEGETATIVE AND FLORAL GROWTH PARAMETERSRaeed S.H. AL-Sultani and Ameer A.H. AL FahhamAbstract The experiment was conducted during the agricultural season 2020-2021 in lath house covered with saran belonging to the Najaf Directorate of Agriculture / Horticulture and Forestry nursery, to know the response of Matthiola incana L plant to spraying with thiamine and Roselle extract in growth indicators and for flowering. The seedlings were transported in plastic pots with a diameter of 25 cm and a height of 22 cm, with an agricultural medium consisting of soil (river mixture) and peat moss in a ratio of 1:3. The experiment consists of the effect of two factors, the first is thiamine at four concentrations (90,60,30,0) mg.l-1. The second is Roselle extract at four concentrations (0,2,4,6) g.l-1. Thiamine and Roselle extract were sprayed by two sprays, between the first and second sprays, 21 days. The experiment was factorial, consisting of three replicates, and the experiment was conducted according to a randomized complete block design (R.C.B.D) 4Ã4Ã3=48. The mean was compared according to the least significant difference (L.S.D) test and at the probability level (0.05). The most important results can be summarized: Thiamine at a concentration of 90 mg.l-1 with Roselle extract at a concentration of 6.4 g.L-1 was significantly excelled to the study indicators, where the plant height, number of leaves, dry weight of vegetative growth, number of days to flowering, number of inflorescences and floret diameter increased. The number of florets was 17.06 cm and 45.40 leaves. Plant-1 and 4.14 g and 97.00 days and 5.00 inflorescence. Plant-1 and 3.56 cm and 18.33 flowers plant- 1 compared to the control treatment, it was 9.46 cm and 18.90 leaves.plant-1 and 1.81 g and 105.33 days and 1.00 inflorescence.plant-1 and 1.80 cm and 10.67 flowers.plant-1 and 13.88 days respectively. |