Table 1.

RNA quality and yield from the GeneJet, TRIzol, Li and Trick [11] and Wang et al. [12] methods. Standard: extraction after grinding in liquid N₂; modified: extraction without liquid N₂ by grinding in the extraction buffer; N/A; not applicable.

	Absorbance Ratios
	A260/A280 *	A260/A230 *
Extraction method	Before–After DNase I Treatment	Before–After DNase I Treatment	RNA per Seed μg/48 mg *
GeneJet Column	N/A	N/A	0.0
TRIzol method (standard)	1.85c–1.87b	0.57d–0.61c	1.1b
Li and Trick [11] (standard)	1.90bc–2.10a	0.80c–2.20a	12.9a
Li and Trick [11] (modified)	2.06a–2.05a	1.32a–2.12a	14.2a
Wang et al. [12] (modified)	1.99ab–2.08a	1.05b–1.86b	14.6a

* Bonferroni t-tests (Means with the same letter are not significantly different).