Oil Content, Vegetative and Reproductive Traits of Jojoba Plant As Affected By Foliar Application of Gibberellic Acid
Journal Title: IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS) - Year 2018, Vol 11, Issue 2
Abstract
This experimental was conducted to study the response of jojoba tree (Simmondsia chinensis) to foliar application of gibberellic acid (0,50,100,150 ppm) on vegetative, reproductive traits and the seed oil content at privet farm in EL-Behira governorate, Egypt during two successive seasons of 2016 and 2017. The experiment was arranged in Randomized Complete Block Design (RCBD) with three replications .Results revealed that all treatments significantly enhanced vegetative growth characteristics (branch length, secondary branches length, number of branched nodes and reproductive characteristics (flowering date, initial fruit set, final fruit set, seed yield and chemical composition of jojoba seed compared to the control in the first and second seasons, respectively, so seed oil fatty acids were identified . The treatment of 150ppm GA3 gave the minimum 50% flowering (41.24 and 37.50) days and recorded the highest means of branch length (95.09 and 98.68), secondary branches length (50.29 and 52.84) and maximum final fruit set (91.05 and 91.23) percent in both seasons, so this GA3 level the maximum seed yield (1892.7 and 1931.25 Kg) in both seasons, respectively compared with the other GA3 treatments and control (1618.25 and 1716.75). in both seasons, respectively. Therefore, application of GA3 150 ppm is recommended as it achieved the maximum improvement in the vegetative and reproductive growth which leaded to raise the economic value of the jojoba plant as a promising tree for planting in drought, salinity area to get its seed commercial oil which potentially useful as a biofuel with multi chemical and pharmaceuticals industries. The maximum seed lipids content (55.13 and 55.94%) were produced in 150ppm GA3 treatment in both seasons, respectively compared with the other GA3 treatments and control, this Egyptian jojoba seed oil contained C20:1 is the major constituent followed by C18:1, C22:1 and 24:1 respectively, whereas C14:1 was present at low concentration amounted.
Authors and Affiliations
Dr. Sudad K. AL- Taweel, Amira K. G. Atteya, Esmail A. E. Genaidy, Hamdy A. Zahran
Keywords
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- EP ID EP382697
- DOI 10.9790/2380-1102025358
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