Heterosis and agronomic performance of raspberry families

• Hernández-Bautista, Aurelio ^[1] ; Lobato-Ortiz, Ricardo ^[1] ; Mejía-Contreras, José Apolinar ^[1] ; García-Zavala, J. Jesús ^[1] ; Castañeda-Villa, Alba Melissa ^[1] ; Chávez-Servia, José Luis ^[2] ; Rocandio-Rodríguez, Mario ^[3] ; Hernández-Bautista, Ana Lidia ^[4] ; Rodríguez-Bautista, Geremias ^[5]
  1. [1] Colegio de Postgraduados

     Colegio de Postgraduados

     México

     
  2. [2] Instituto Politécnico Nacional

     Instituto Politécnico Nacional

     México

     
  3. [3] Universidad Autónoma de Tamaulipas

     Universidad Autónoma de Tamaulipas

     México

     
  4. [4] Universidad del Golfo de México

     Universidad del Golfo de México

     México

     
  5. [5] Universidad de Guadalajara

     Universidad de Guadalajara

     México

     

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• Localización: Agro Productividad, ISSN-e 2594-0252, Vol. 15, Nº. 8, 2022 (Ejemplar dedicado a: Agosto), págs. 3-11
• Idioma: inglés
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• Resumen

  • Objective: To study the heterosis and agronomic performance of raspberry (Rubus idaeus) F1 families derived from open-pollinated parents, and to investigate the heterotic relationships between yield and its components.

    Design/methodology/approach: A total of thirty-five genotypes, including eight open-pollinated raspberry cultivars, their 28 F1 families and one check, were evaluated for vegetative and fruit traits. The trial was carried out under a randomized block design and under open field conditions.

    Results: Mid-parent heterosis (MH) ranged from -94.83 to 311.67 %, whereas the better parent heterosis (BPH) values varied from -94.26 to 235.00 %. We observed that the heterosis values for yield had a strong and positive correlation (r = 0.89) with the heterosis values for number of fruits per plant.

    Limitations on study/implications: Heterosis and performance of F1 families in raspberry would depend on the pedigree of parents as their relativeness is a key factor to exploit the heterosis in plants.

    Findings/conclusions: High values of heterosis were found in some raspberry crosses. Progeny derived from parents MU1 and TD865 showed considerable mid-parent heterosis (MH) and good performance for fruit size-related traits, soluble solids content and yield, evidencing that both parents may be utilized as donor parents in raspberry breeding program.