Jurnal Biologi Tropis
Vol. 26 No. 4 (2026): in Progress

Response of Branching and Yield Components of Lato-lato Sweet Potato to Growing Medium Height in Sacks

Sri Ulpa (Universitas Mataram)
Bambang Supeno (Universitas Mataram)
Amrul Jihadi (Universitas Mataram)



Article Info

Publish Date
07 Oct 2026

Abstract

Growing medium height in sack cultivation may alter root-zone space and plant responses, yet its effects on branching and yield components of sweet potato require further investigation. This study aimed to evaluate the responses of branching and yield components of Lato-lato sweet potato to growing medium height in sacks and to analyze the relationships between branch number and yield components. The experiment was conducted from October 2025 to January 2026 in Lingsar, West Lombok, using a 5 × 5 Latin square design with five growing medium heights of 20, 30, 40, 50, and 60 cm, resulting in 25 experimental units. Observed variables included branch number, storage root number, total storage root weight, and average storage root weight. Data were analyzed using analysis of variance at the 5% significance level and Spearman correlation. Growing medium height had no significant effect on branch number (p = 0.056), storage root number (p = 0.621), total storage root weight (p = 0.109), or average storage root weight (p = 0.261). Branch number was not significantly correlated with storage root number (ρ = −0.293; p = 0.155) or total storage root weight (ρ = 0.309; p = 0.133), but showed a significant positive correlation with average storage root weight (ρ = 0.439; p = 0.028). Growing medium heights of 20–60 cm did not significantly alter branching or yield components, while the association between branching and yield was found only for average storage root weight.

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Journal Info

Abbrev

JBT

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Description

Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi ...