Effect of Acute Gamma Irradiation on Curcuma alismatifolia Varieties and Detection of DNA Polymorphism through SSR Marker

Table 3

The number of irradiated and mortal rhizomes of Curcuma alismatifolia varieties after acute irradiation with different doses of gamma rays.

Dose (Gray)	Total number of irradiated rhizomes in each var.	Number of mortal rhizomes after 40 days				Mortality rate (%); in each dose
		Doi Tung 554	Chiang Mai Red	Sweet Pink	Kimono Pink
0	20	0	0	0	0	0
10	20	0	0	0	0	0
20	20	1	10	8	6	31.2
25	20	10	15	12	10	58.7
35	20	13	18	16	15	77.5
40	20	18	19	19	17	91.2
60	20	20	20	19	20	98.7
100	20	20	20	20	20	100
Total	160	81	102	94	88
Mortality rate (%)		51	63	58	55
LD50 (%)		28 Gy	21 Gy	23 Gy	25 Gy
Confidence limits (95%)		25–31 Gy	17–23 Gy	19–26 Gy	22–28 Gy