Table 1.

Features of leafy crops that affect productivity and handling properties for plant molecular farming

Parameter	Unit	Relevance	Indicator for
Harvest indexa	kg kg−1	Plant yield	Relevant biomass
Leaf area index	m2 m−2	Facility yield	Cultivation density
Relative growth rate	kg kg−1 d−1	Facility yield	Batch time
Total dry mass	kg plant−1	Plant yield	Biomass
Accumulation homogeneity	Log10 (youngest to oldest)	Plant yield	Biomass quality
Protein contentb	g kg−1	Plant yield	Biomass quality

^aAlso referred to as leaf mass fraction

^bThe protein content is often measured in terms of total soluble protein and thus depends on the selected extraction conditions