Effects of foliar versus soil water application on ecophysiology, leaf anatomy and growth of pineapple

Background Due to global warming, drought climates frequently occur on land, and despite being drought resistant, pineapples are still subjected to varying degrees of drought stress. Plant growth regulators can regulate the stress tolerance of plants through hormonal effects. This experiment aims to investigate the regulatory effects of different plant growth regulators on Tainong- 16 and MD-2 Pineapple when subjected to drought stress. Results In this experiment, we examined the regulatory effects of two different plant growth regulators, sprayed on two pineapple varieties: MD-2 Pineapple and Tainong-16. The main component of T1 was diethyl aminoethyl hexanoate (DA-6) and that of T2 is chitosan oligosaccharide (COS). An environment similar to a natural drought was simulated in the drought stress treatments. Then, pineapples at different periods were sampled and a series of indicators were measured. The experimental results showed that the drought treatments treated with T1 and T2 plant growth regulators had a decrease in malondialdehyde, an increase in bromelain and antioxidant enzyme indicators, and an increase in phenotypic and yield indicators. Conclusion This experiment demonstrated that DA-6 and COS can enhance the drought resistance of pineapple plants to a certain extent through bromelain and oxidative stress. Therefore, DA-6 and COS have potential applications and this experiment lays the foundation for further research.

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Effects of foliar versus soil water application on ecophysiology, leaf anatomy and growth of pineapple

Abstract: What is the expected impact on horticulture?• The water supply solely by soil application in pineapple crops in protected culture maintains plant growth and prevents excessively high leaf temperatures during hot seasons in subtropical regions.

Cited by 4 publications

References 33 publications

Water status response of pineapple using destructive and non-destructive indicators and their relations in two contrasting seasons

Water status response of pineapple using destructive and non-destructive indicators and their relations in two contrasting seasons

Evaluation of irrigation frequency on pineapple plants grown in greenhouse conditions

Effect of plant growth regulators DA-6 and COS on drought tolerance of pineapple through bromelain and oxidative stress

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