Document Type : Research Paper
Authors
1 Agricultural Research Department, Ministry of Science and Technology, Baghdad, Iraq.
2 Agricultural Research Department, Ministry of Science and Technology
3 Agricultural Research Department, Ministry of Science and Technology, Baghdad,
Abstract
A study was conducted in agricultural season 2021to find out the effect of UV radiation duration and Biological combination (mycorrhiza G. mosseae and Azotobacter chrococcum)(F)on the germination and growth of Jojoba (Simmondsia chinensis). jojoba seeds were treated with UV for different durations of 5, 10 and15minutes and coded it (UV5, UV10 and UV15).than seeds were transferred direct after being exposed to UV radiation in pots supported by Biological combination add it under seed by average 10 g every pot By" using Randomized Complete Block Design (RCBD) with three replicates". The results were analyzed statistical using SAS. The results showed significant increase in interactions UV5+F on number spores, colonization intensity and Mycorrhizal colonization percentage(37.00 g -1soil fungal spore, 55.7%, 90.00% respectively).The highest percentage of Nitrogen% and percentage of phosphorus(3.50%and0.33%) respectively compared by control(2.33.0.21) %respectively,germination percentage (89.67%),the lowest days on germination speed (9.5day) and high plant height(76.67 cm) compared to treatment uv15(75% and high number days for germination (16 days) which no significant differences in the control and the last treatment low high plant (66.33 cm) . The treatment UV10 +F showed a statistically significant increase on number of leaves (67leaves) and total chlorophyll content of jojoba leaves (31.33 spad) compared to control (31leaf, 14.33 spad). Leaf area showed no significant differences in the treatments. Results revealed that the seed treatment with biological combination and UV (particularly UV 5 improved some traits in jojoba seed.
Keywords
Main Subjects
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