Effect Sowing date and spraying with sea algae extract kelpak on growth, seed and oil yield of basil plant ˝Ocimum basilicum var. Cinnamon L.˝

Abstract

An experiments were conducted during spring seasons of 2015 in medicinal and aromatic plant field follow of Agriculture College/ Basrah University to study the effect of date planting (15/2 and 1/3) and spraying with sea algae extract kelpak (2 ml.l-1 ) or without Kelpak on growth and yield parameters seeds and oil of basil plant ˝Ocimum basilicum var. Cinnamon L.˝. The result was analysis with Complete Block Design Randomized ( R.C.B.D) was used with three replication, Least Significant Differences Test (L.S.D) was used at probability of 5% with Genstat programs. The results could be summarized as follows:- The first date increased significantly in plant height, leaves number. plant-1, leaves area, the number of inflorescences, seed yield.plant-1 (2.37 gm), total seed yields (1.85 kg.h-1), seed weight of 1000 (1.39 gm), percentage oil.seeds-1 ( 9.80%), oil yields.plant-1 (0.26 gm) and total oil yields (0.21 kg.h-1). While the second date increased significantly in the number of vegetative branches and the date of flowering.The sprying with 2 ml.l-1 of sea algae extract (kelpak) caused significants increasing in plant height, the number of vegetative branches, leaves number.plant-1, leaves area, date of flowering, the number of inflorescences, total seed yields (2.02 kg.h-1), seed weight of 1000 (1.23 gm), percentage oil.seeds-1 ( 9.80%), oil yields.plant-1 (0.26 gm) and total oil yields (0.19 kg.h-1) spraying with distilled water caused effect in date flowering. The interactions between the studied factors caused significant increased effects in all characters’.