Rch Kimi Ngangkang Pamer Lubang Meki Id | 13727799 Mangga - Indo18

• Genetic uniqueness: Molecular fingerprinting (SSR markers) places INDO‑18 in a distinct cluster within the “Indonesian lowland” gene pool, sharing < 70 % similarity with the popular “Arumanis” and “Manalagi” cultivars.
• Ex situ conservation: Maintained as field clones at RCH‑Kalimantan, and as in vitro cultures (shoot tip culture) at the Indonesian Plant Genetic Resources Center (IPGRC).
• In situ importance: The original mother tree (age ≈ 45 years) is protected by the local community as a cultural heritage tree.

7. Market Outlook

Yield

| Parameter | Value (average) | Remarks | |-----------|----------------|----------| | | 15–18 t ha⁻¹ (fresh weight) | Stable across low‑input (≤ 30 kg N ha⁻¹) and moderate‑input (≤ 75 kg N ha⁻¹) regimes. | | Tree vigor | Moderate (annual trunk increment 12–15 cm). | | Canopy density | Semi‑open – facilitates sunlight penetration and air flow. | | Drought tolerance | Good – maintains > 80 % flowering under a 30‑day water deficit. | | Disease resistance | - Anthracnose ( Colletotrichum gloeosporioides ): < 5 % infection rate in humid trial sites. - Powdery mildew ( Oidium mangiferae ): negligible symptoms. - Mango root‑bunch disease : tolerant. | | Pest pressure | Low to moderate; susceptible only to the mango fruit fly ( Bactrocera dorsalis ) during the early fruiting stage (managed by bagging). | | Propagation | Easy via hardwood cuttings (8‑12 cm) taken in the dry season; grafted onto seedling or polyembryonic rootstocks with > 90 % success. | | Harvest index | 0.68 (fruit / total biomass). | RCH Kimi Ngangkang Pamer Lubang Meki – ID