Nutrient sufficiency levels for haskap (Lonicera caerulea L.) using the boundary-line approach

Adequate supply of plant nutrients is crucial for haskap plant growth and increased productivity. A study was carried out to determine the variability in haskap (Lonicera caerulea L. cv. Indigo Gem) plant characteristics in relation to soil and leaf tissue nutrient status. A total of 19 composite so...

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Bibliographic Details
Published in:Canadian journal of plant science 2019-04, Vol.99 (2), p.268-280
Main Authors: Iheshiulo, Ekene Mark-Anthony, Abbey, Lord, Hammermeister, Andrew M
Format: Article
Language:English
Subjects:
approche du seuil
boundary-line approach
Calcium
camerise
Chlorophyll
concentration d’oligoéléments dans le tissu foliaire
concentration suffisante d’oligoéléments
Correlation analysis
Cultivars
Farms
fertilité du sol
Growth rate
haskap
Indigo
Indigo Gem
leaf tissue nutrients
Leaves
Lonicera caerulea
Lonicera caerulea L
Nutrient status
nutrient sufficiency
Nutrients
Nutritional status
Plant sciences
soil fertility
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Summary:Adequate supply of plant nutrients is crucial for haskap plant growth and increased productivity. A study was carried out to determine the variability in haskap (Lonicera caerulea L. cv. Indigo Gem) plant characteristics in relation to soil and leaf tissue nutrient status. A total of 19 composite soil samples and corresponding plant leaf tissue samples were collected in 2016 from 12 locations in Nova Scotia. Plant parameters measured include growth rate, leaf size, leaf chlorophyll content, and visual observations. A boundary-line approach was used to determine nutrient sufficiency ranges in leaf tissues of 2.23%–2.96% for N, 0.22%–0.28% for P, 0.84%–1.32% for K, 1.63%–2.10% for Ca, and 0.14%–0.50% for Mg. Principal component and correlation analysis suggested a possible antagonistic interaction between leaf K and Mg. Negative associations were observed most frequently between Ca and Mg and other nutrients, especially K. Plant parameters such as bush volume, leaf size, and growth rate were closely related to soil and leaf K. Deficiencies in leaf tissue K and P were identified as potentially important factors limiting growth. Therefore, there is a need to adjust or balance the application of these nutrients. In conclusion, the sufficiency ranges derived can be used as a guiding principle in diagnosing the nutritional status of haskap cv. Indigo Gem on representative farms in Nova Scotia.
ISSN:0008-4220
1918-1833
DOI:10.1139/cjps-2018-0151