Sikhao, Potjana

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Preferred name
Sikhao, Potjana
Alternative Name
Sikhao, P.
Main Affiliation
Email
potjana.si@kmitl.ac.th

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    Effect of Seed Coating with Fluorescent Compound on Quality and Fluorescence of Cucumber seeds
    (2021-11-01)
    Thiphinkong, D.
    ;
    Sikhao, P.
    The quality and fluorescence of seed after coating with fluorescent compound on cucumber was investigated. The results showed that the coated seed with all types of fluorescent compound had a fluorescence when examined by using a portable ultraviolet light projector. The coated seed with coating substance mixed with Rhodamine had the clearest fluorescence. All the coated seed with coating substance mixed with fluorescence compound were specifically emissions spectra observed from a spectrofluorophotometer. In addition, there were also not affected germination and germination index of seed. In summary, coating with coating substance mixed with Rhodamine is an effective and convenient to mark any cucumber seed lot for provide identity and other qualifications as well as preventing counterfeiting of seeds.
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    Application of seed coating with endophytic bacteria for Fusarium wilt disease reduction and growth promotion in tomato
    (2020-01-01)
    Koohakan, P.
    ;
    Prasom, P.
    ;
    Sikhao, P.
    Tomato seed coating with endophytic bacteria (SuRW02) was used to control Fusarium wilt disease of tomato and stimulated plant growth in field conditions. Results showed that seed coating with isolate SuRW02 reduced disease incidence and severity which similar to seed coating with chemical fungicide (Captan). Seed coating with endophytic bacteria and Captan showed disease incidences of 38 and 25% and disease severity indices of 0.37 and 0.25, respectively. Uncoated seeds and seed coating without endophytic bacteria had a disease incidences of 70 and 50% and disease severity indices of 2.00 and 1.25, respectively. In addition, seed coating with endophytic bacteria promoted tomato plant growth and quality of tomato production.
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    A study of polymer for delay germination in hybrid sweet corn seed production
    (2024-05-01)
    Sodakul, N.
    ;
    Sikhao, P.
    The results showed that the pH values of each coating substance formulation exhibited statistically significant differences. Notably, the highest pH value was observed in the coating substance mixed with CMC. Similarly, the viscosity of the coating substances showed significant variations, with the commercial coating substance having the highest viscosity. Following this, the coating substances mixed with CMC, HPMC, NaAlg, and PVP-K30 demonstrated progressively lower viscosities. To assess the uniformity of the coating, the surface characteristics of the seeds were visually examined. The results indicated that seeds coated with the commercial coating substance exhibited the highest coating uniformity. Subsequently, the uniformity levels decreased in the following order: seeds coated with a mixture of PVP-K30, HPMC, CMC, and NaAlg. For the seed quality test after coating, the results showed that all types of polymers had no statistically significant effect on the germination percentage and germination index. If further studies are conducted on the types and concentrations of polymers, it is possible to develop seed coating formulations to delay germination.