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  • Quality of flowers to daffodils based on vegetative and floral indices.

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    Author(s) : Băla, M.Sala, F.

    Author Affiliation : Banat University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara, Horticulture, Timişoara, 300645, Romania.

    Author Email : mariabalamonicabala@yahoo.comflorin_sala@usab-tm.ro

    Journal article : Scientific Papers Series - Management, Economic Engineering in Agriculture and Rural Development 2020 Vol.20 No.2 pp.37-44 ref.49

    Abstract : The study aimed to evaluate the quality of flowersflowersSubject Category: Anatomical and Morphological Structures
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    in daffodils (Narcissus pseudonarcissusnarcissus pseudonarcissusSubject Category: Organism Names
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    L.) in relation to physiological indices and parameters and floral indices. The biological material was represented by five varieties of daffodils: 'Carlton', 'Ice Follies', 'St. Patrick', 'Dick Wilden' and 'Salome'. A series of physiological indices and parameters, and floral indices were evaluated that described the status of plantsplantsSubject Category: Organism Names
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    (plant heightplant heightSubject Category: Properties
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    - PH, number of leavesleavesSubject Category: Anatomical and Morphological Structures
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    - LN, length of leaves - LL), vegetation period (VP), floweringfloweringSubject Category: Natural Processes
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    period (FP), and flowers size (FS). The flowering period (FP) expressed in days, recorded the values: FP=13 days for 'Carlton', FP=18 days for 'Ice Follies', FP=9 days for 'St. Patrick', FP=10 days for 'Dick Wilden', and respectively FP=11 days for 'Salome'. Correlation analysis revealed very high, positive, correlations between FS and LN (r=0.968), and between plant height (PH) and leaf length (LL) (r=0.915). The variation of FS according to LN was described by a polynomial equation of degree 2, under conditions of R2=0.938, p << 0.01. A 3D model of FS variation with respect to LN and FP was obtained, and a graphical representation in the form of isoquant, expressed a possible combination of LN and FP for optimum of FS. Principal Component Analysisprincipal component analysisSubject Category: Techniques, Methodologies and Equipment
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    (PCA) led to the distribution of the studied varieties in relation to the main quality parameters considered (VP, FP and FS). PC1 explained 43.701% of variance, and PC2 explained 39.003% of variance. Cluster analysiscluster analysisSubject Category: Techniques, Methodologies and Equipment
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    led to the grouping of daffodils varieties based on affinity with respect to flower quality indices (FP and FS) under statistical safety conditions, Coph.corr.=0.924.

    ISSN : 2284-7995

    Record Number : 20203350016

    Publisher : University of Agronomic Sciences and Veterinary Medicine of Bucharest

    Location of publication : Bucharest

    Country of publication : Romania

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Narcissus pseudonarcissusnarcissus pseudonarcissusSubject Category: Organism Names
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    Descriptor(s) : leavesleavesSubject Category: Anatomical and Morphological Structures
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    , flowersflowersSubject Category: Anatomical and Morphological Structures
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    , floweringfloweringSubject Category: Natural Processes
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    , cluster analysiscluster analysisSubject Category: Techniques, Methodologies and Equipment
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    , plant heightplant heightSubject Category: Properties
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    , principal component analysisprincipal component analysisSubject Category: Techniques, Methodologies and Equipment
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    , crop qualitycrop qualitySubject Category: Properties
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    , cultivarscultivarsSubject Category: Organism Groups
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    Identifier(s) : anthesis, cultivated varieties

    Broader term(s) : NarcissusnarcissusSubject Category: Organism Names
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    , AmaryllidaceaeamaryllidaceaeSubject Category: Organism Names
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    , AsparagalesasparagalesSubject Category: Organism Names
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    , monocotyledonsmonocotyledonsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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