Amaranth — Irrigation

Metadata research draftEvidence limits

⚠️ Status: drafted from the literature survey. Values Unknown until source notes/full text. Water in mm or L/m² (1 mm = 1 L/m²), per units.md.

By growth stage

• Germination/establishment: needs consistent moisture until established (tiny seed, shallow). Vegetative → flowering → seed set: water needs by stage Unknown.
• Preharvest: low/stopped to allow dry-down and reduce shatter — Unknown.

Drought tolerance (Mexico-relevant)

• Grain amaranth is reported drought-tolerant (C4) and betacyanin pigments may protect leaves under water stress (candidate 10.1007/s11099-011-0062-7). Vegetable amaranth drought-tolerance screening exists (10.3390/agriculture11100994). Resistance to terminal/mid-season moisture stress for grain yield — Unknown.

Waterlogging sensitivity

• Avoid excess water (see soil.md). Waterlogging effect Unknown.

Frequency and total

• Frequency and seasonal total (mm / L/m²) for a small plot — Unknown. Mexico semi-arid suitability flagged.

Structured-data impact

• Feeds water fields of data/crops/amaranth.yaml (demand, seasonal_total_mm).