Imants Missa

ORCID: 0000-0001-8916-2337
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Research Areas
  • Plant Physiology and Cultivation Studies
  • Algal biology and biofuel production
  • Horticultural and Viticultural Research
  • Postharvest Quality and Shelf Life Management
  • Edible Oils Quality and Analysis
  • Mycorrhizal Fungi and Plant Interactions
  • Garlic and Onion Studies
  • Flowering Plant Growth and Cultivation
  • Banana Cultivation and Research
  • Plant Pathogens and Fungal Diseases
  • Fungal Biology and Applications
  • Plant Virus Research Studies
  • Antioxidant Activity and Oxidative Stress
  • Insect-Plant Interactions and Control
  • Tree Root and Stability Studies

Latvia University of Life Sciences and Technologies
2017-2024

Abstract Nitrogen is a nutrient necessary for many functions of plants, e.g. shoot growth, fruit and flower bud set, size. In Latvia use mineral fertilisers limited by EU Directives Regulations developed on the basis Guidelines Integrated Production. The aim study was to investigate effect nitrogen (N) fertiliser apple growth production in conditions Latvia. performed during 2013 2015. an trial, seven cultivars rootstock B.396 were planted 2009. There two treatments: without fertilising N 6...

10.1515/prolas-2017-0020 article EN Proceedings of the Latvian Academy of Sciences Section B Natural Exact and Applied Sciences 2017-06-27

The present study aimed to investigate the effect of solution ethanol extractions different microalgae species: Spirulina sp., Dunaliella sp. and Chlorella on accumulation biologically active compounds in tomato fruits. Ethanol as well treatment with drinking water were used a control. Tomato cultivar ‘Belle’ F1 (Enza Zaden) was grown 25 L pots, peat substrate (pHKCl 5.5, producer Laflora LTd), polycarbonate greenhouse. Chemical composition – total carotenoids, lycopene β-carotene content,...

10.20944/preprints202408.0180.v1 preprint EN 2024-08-02

This study aimed to detect an impact of water–ethanol extracts different microalgae species—Spirulina platensis, Dunaliella salina and Chlorella vulgaris—on the accumulation bioactive compounds in tomatoes. A treatment with corresponding ethanol solution pure drinking water was used as a control. Tomato cultivar ‘Belle’ F1 (Enza Zaden) grown polycarbonate greenhouse, 25 L pots filled peat substrate (pH KCl 5.5). The plants were sprayed weekly from germination until start harvesting, total...

10.3390/ijpb15040092 article EN cc-by International Journal of Plant Biology 2024-12-13

Received: February 3rd, 2021 ; Accepted: May 31st, Published: June 7th, Correspondence: liga.lepse@llu.lv

10.15159/ar.21.102 article EN 2021-01-01

Abstract The negative influence of pathogens on plant development is well known. However, the impact depends various factors: cultivar and rootstock resistance, nutrition, environment, virulence, concentration in tissue. evaluation apple chlorotic leaf spot virus (ACLSV) tree growth production was performed at Institute Horticulture (LatHort) from 2012 to 2020. Virus-free ACLSV-infected trees traditional ‘Antonovka’ new scab resistant ‘Gita’ were evaluated dwarfing B.396. presence four...

10.2478/prolas-2022-0076 article EN Proceedings of the Latvian Academy of Sciences Section B Natural Exact and Applied Sciences 2022-08-01

The aim of this study was to evaluate the growth, productivity, and tree condition sour cherries, depending on cultivar soil-moisture treatment. research carried out at Institute Horticulture, Latvia University Agriculture. Five cherry cultivars were investigated using drip irrigation woodchip mulch. following data collected processed: trunk cross-section area (TCSA), growth intensity (TGI), fruit set, yield tree(-1) efficiency as a ratio TCSA, photosynthesis performance index, level...

10.17660/actahortic.2019.1235.46 article EN Acta Horticulturae 2019-02-01
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