Laser Irradiation of Mung Bean (Vigna radiata L.) at Two Wavelengths for Enhanced Seedling Development

Table 1

Mean values of hypocotyl length and root length of 5-day-old mung bean seedlings after laser pretreatment of seeds at λ = 632.8 nm and λ = 488 nm.

Exposure time	He-Ne laser (λ = 632.8 nm)		Ar^+ laser (λ = 488 nm)
	Hypocotyl length (mm)	Root length (mm)	Hypocotyl length (mm)	Root length (mm)
0 s (control)	95.443^a	81.936^a	95.443^a	81.936^a
30 s	108.766^bc	89.319^ab	97.183^ab	82.562^a
1 min	115.403^c	90.829^ab	101.914^ac	85.444^a
2 min	116.925^c	105.529^c	110.647^c	90.572^a
5 min	114.358^c	99.793^bc	105.981^bc	88.623^a
10 min	101.075^ab	88.688^a	100.529^ab	83.583^a

Means with different superscripts in the same column are statistically different at .