Optimization of Light Intensity for Olive Propagation under Greenhouse Condition through Semi-Hardwood Cuttings

Olive cultivation in Pakistan is being commercialized at a fast pace in selected agro-climatic regions. The demand for local plants is increasing and no scientific study has been previously carried out to standardize propagation technology concerning optimization of light intensity under greenhouse...

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Bibliographic Details
Published in:Pakistan journal of agricultural research 2021, Vol.34 (4), p.742
Main Authors: Rafique, Muhammad, Iqbal, Muhammad Azhar, Haq, Inam Ul, Anser, Muhammad Ramzan, Umar, Humara, Sumrah, Muhammad Ashraf
Format: Article
Language:English
Subjects:
Agricultural research
Callus
Commercialization
Cutting
Cuttings
Farms
Greenhouses
Hardwoods
Humidity
Light
Light intensity
Luminous intensity
Optimization
Propagation
Root development
Rooting
Roots
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Summary:Olive cultivation in Pakistan is being commercialized at a fast pace in selected agro-climatic regions. The demand for local plants is increasing and no scientific study has been previously carried out to standardize propagation technology concerning optimization of light intensity under greenhouse conditions. The current study was conducted at Izhar farms (Pvt.) Ltd. under the collaboration with Barani Agricultural Research Institute (BARI) Chakwal to find out the appropriate light intensity for successful olive propagation under greenhouse conditions. The data regarding days to root initiation, number of roots, root length, days to shifting, rooted cutting percentage and callus percentage were collected under four different treatments. Cutting under the only green net (5944 lux), white net (11428 lux) only upper side white net (8484 lux) and both green and white net (5538). The results were found significant regarding the interaction between varieties and treatments; however, non-significant variation in varieties was found regarding the number of roots, days to root, and days to shift. The important observations regarding the results were found that minimum light intensity delayed the rooting percentage and increased the callus formation while higher light intensity increased mortality with increased root length in both varieties with moderate callus formation. Up to three weeks, there was no root development under all treatments. The cuttings under light intensity (8484 lux) produced more numbers of roots, with early initiation in both varieties. Variation in varietal performance was observed under different treatments however 8000 lux light gave better results in all the parameters.
ISSN:0251-0480
0251-0480
2227-8311
DOI:10.17582/journal.pjar/2021/34.4.742.747