Einkorn

Every other cultivated wheat is polyploid — emmer and durum tetraploid, spelt and bread wheat hexaploid — and einkorn alone remained diploid. That makes it the simplest wheat genome and a reference point in wheat genetics, and it is the reason einkorn appears in research far out of proportion to its planted area.

Management combines resistant varieties, rotation, monitoring, and — where justified — locally authorized control products applied according to their labels.

The name means single grain, and most einkorn types set one grain per spikelet where emmer sets two and bread wheat more. That is a large part of why yields are low, and it is not a defect that breeding has been able to remove without leaving the species.

Einkorn threshes as a spikelet and needs dehulling before milling, like emmer and spelt. Its glumes are tight and dehulling losses are correspondingly high, which further reduces the usable yield from an already low harvest.

Einkorn tolerates shallow, stony, dry and infertile soils, and it is grown on exactly that kind of land in the few regions where it persists. On good ground it is comprehensively outyielded and there is no reason to choose it.

Soil suitability should be assessed with local soil survey information and, where available, field testing.

In the Italian farro trade einkorn is farro piccolo, the smallest of the three. Because the term farro is applied to all three hulled wheats without distinction in much of the market, einkorn is frequently sold under a name that does not identify it.

Einkorn grain is small, narrow and often deep yellow, and it holds its shape in cooking, which is what the specialty market is buying. It mills to a soft flour with weak dough properties, so it is used in flatbreads, porridges and whole-grain preparations more than in leavened loaves.

Einkorn contains gluten and is not suitable for people who must avoid it. Its gluten differs in composition from bread wheat gluten, and claims that follow from that about digestibility or tolerance are contested in the literature and are not made here.

Einkorn is maintained in germplasm collections well beyond what its cultivation would justify, because a diploid wheat is a tractable model for traits that are hard to study in a hexaploid. Its value to wheat breeding is disproportionate to its area, which is the standard argument for conserving a minor crop.

The crop is tall, thin-stemmed and lodges readily, and it is normally grown at very low input for that reason. Harvest is straightforward but the spike is brittle in some landraces, so cutting slightly early is common where shattering is a risk.

Fertilizer rates, timing, and forms should follow local soil tests and regional guidance. AgricultureID does not publish universal fertilizer recommendations.