Inducing waterlogging tolerance of tomato 9Lycopersicum esculentum Mill) using Paclobutrazol and potassium nitrate [manuscript]
| dc.contributor.author | Marie Bie S. Natividad | |
| dc.date.accessioned | 2026-01-06T07:19:52Z | |
| dc.date.available | 2026-01-06T07:19:52Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | This study aimed to evaluate the effect of waterlogging in survival and growth response of tomato, to determine the effect oof PBZ and KNO3 foliar application and to compare the timing of application in survival and growth response of tomato subjected to waterlogged condition. The experiment was laid out using spli-split-plot design in RCBD with waterlogging treatment (0 hr and 24 hr) as main plot, timing of application (before and after waterlogging) as sub-plot, and PBZ and KNO3 concentration (0 PBZ + O KNO3, 0 PBZ + 4% KNO3, 0 PBZ + 8% KNO3, 10 PBZ + 0 KNO3, 10 PBZ + 4% KNO3, 10 PBZ + 8% KNO3, 20 PBZ + 0 KNO3, 20 PBZ + 4% KNO3, 20 PBZ + 8% KNO3) as sub-sub plot. Results of the study showed that 24 hr waterlogging significantly reduced plant dry weight, survival, height, number of leaflets, and leaf chlorophyll content but had similar number of adventitious roots with 0 hour or control. For chemical application, PBZ application showed no changes in growth response; however, it improved root partitioning coefficient especially when subjected to 24 hr waterlogging. KNO3 on the other hand, improved the growth response but decrease survival at high concentration. Plant applied with 0 ppm PBZ + 4 % KNO3 consistently produced taller plants, highest number of leaflets, percent survival and plant dry weight across water regime and timing of application. This treatment can be applied regardless of the timing as indicated by insignificant difference between before and after waterlogging. Hence, it can be concluded that application of low amount (4%) of KNO3 at vegetative phase of tomato after short term waterlogging (as it is more practical) can improve plant performance. | |
| dc.identifier.uri | http://granarium.clsu.edu.ph/handle/123456789/929 | |
| dc.language.iso | en_US | |
| dc.title | Inducing waterlogging tolerance of tomato 9Lycopersicum esculentum Mill) using Paclobutrazol and potassium nitrate [manuscript] | |
| dc.type | Thesis |