Tanggapan Pertumbuhan dan Hasil Tomat (Solanum lycopersicum L.) 'SERVO F1' terhadap Biostimulan Berbasis Asam Amino
Oktabela Emiliana Sofilaputri, Prof. Dr. Ir. Rudi Hari Murti, S.P., M.P. IPM. ; Valentina Dwi Suci Handayani, S.P., M.Sc., Ph.D.
2025 | Tesis | S2 Agronomi
The application of biostimulants
offers an alternative to reduce excessive dependence on inorganic fertilizers
and to support sustainable agricultural production. Amino acids, as active
components of bio stimulants, enhance nutrient uptake and stimulate physiological
processes in plants. This study aimed to 1) evaluate the effects of various
doses of amino acid-based bio stimulants in reducing used of inorganic
fertilization; 2) determine the optimal biostimulant dose to improve the growth
and yield of Servo F1 tomato plants. The experiment had been conducted from
November 2024 to February 2025 in Losari, Karanglo, Sleman, Yogyakarta. The
design used factorial Randomized Complete Block Design (RCBD) factorial with
three replications. The first factor was inorganic fertilization (100% and 75%
NPK), and the second was the dose of the biostimulant Amiboost (0; 0.5; 1.0;
1.5; and 2.0 L/ha). Data were analyzed using Analysis of Variance (ANOVA) and Honestly
Significant Difference (HSD) with ? = 5%. The results showed significant interactions between
fertilizer and biostimulant doses on tissue N, P, and K content, auxin,
gibberellin, cytokinin, stomatal number, and stomatal density. The application
of 100% NPK increased the number of leaves at 7 weeks after planting. Biostimulant
dose significantly influenced root area, leaf area, leaf area index at 7 weeks
after planting, fruit weight per plot, and plant productivity. Biostimulant
application increased tomato yield to 26.50 tons/ha, compared to 16.96 tons/ha
without bio stimulant. The optimal dose for enhancing Servo F1 tomato yield was
0.60 L/ha.
Kata Kunci : biostimulan, asam amino, pemupukan NPK, serapan hara, produktivitas tomat