YIELD VARIATION ANALYSIS AND SOME SEEDS PARAMETERS ON SUNFLOWER

Cristian Andrei Iuhasz, Andreea Lidia Jurjescu, Rebeca-Ioana Tomuța, Marinel Nicolae Horablaga, Florin Sala

Abstract


The yield and quality parameters of the seeds were analyzed for the experimental sunflower crops. Nine variants were considered, represented by commercial hybrids, CH1 to CH9. Sunflower crops was organized within ARDS Lovrin, agricultural year 2023 - 2024, under non-irrigated crop conditions. The yield (Y, kg ha-1), the hectoliter weight (HW, kg hl-1) and the weight of one thousand seeds (TKW, g 1000 seeds-1) were analyzed. According to PCA, PC1 explained 57.527% of variance, and PC2 explained 33.364% of variance. The variants were associated differently, some with the HW parameter (e.g. CH8, CH9), others with the TKW parameter (e.g. CH1, CH5), or with the yield (e.g. CH2, CH3, CH6). The cluster analysis facilitated the grouping of the variants in two clusters, under conditions of Coph.corr. = 0.875. The yield (Y) variation in relation to HW and TKW was described by models in statistical safety conditions (R2 = 0.706, p=0.0061).

Keywords


multivariate analysis; models; seed parameters; sunflower; yield.

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Copyright (c) 2025 Cristian Andrei Iuhasz, Andreea Lidia Jurjescu, Rebeca-Ioana Tomuta, Nicolae Marinel Horablaga, Florin Sala

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LUCRĂRI ȘTIINȚIFICE MANAGEMENT AGRICOL

ISSN print 1453-1410
ISSN online 2069-2307
(former ISSN 1453-1410, E-ISSN 2069-2307)

PUBLISHER: AGROPRINT Timisoara, Romania
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