Table 4.

Ascochyta blight seed staining scores, Disease Index (DI), on seed harvested from cultivars in three field trials in South Australia at Melton (2005), Sandilands (2005) and Mallala (2014).

Site	Melton	Sandilands	Mallala
Year	2005	2005	2013
Disease rating	Sqrt DIa	Sqrt DIa	DIb
LENTIL CULTIVAR
Boomer	4.17 (18.0)c	1.91 (3.9)	0.7
Nipper	0.71 (0.65)	0.69 (0.5)	0.4
Northfield	0.72 (0.60)	0.52 (0.3)	0.07
Nugget	3.72 (14.0)	1.00 (1.05)	1.4
PBA Ace			0.0
PBA Blitz			1.3
PBA Bounty			0.6
PBA Flash			4.9
PBA Herald XT			0.07
PBA Hurricane XT			0.3
PBA Jumbo			0.1
LSD (P ≤ 0.05)	0.5	0.3	1.6

^aDisease Index (DI) assessed using a categorical scale of 0–3 whereby 0, no staining; 1, ascochyta blight lesions ≤ 1 mm diameter; 2, ascochyta blight lesions > 1 mm diameter and < 25% seed coverage; 3, ≥25% seed coverage. $DI= [{\displaystyle {\sum }_{i=0}^n {(d_i*s_i/N]}^{*}}$ 100/C where s_i refers to the number of seeds in each disease category, d_i is the value of the disease category, N is the total number of assessed seeds per plot and C is the number of disease categories.

^bDisease Index assessed using a 0–5 categorical scale; 0, no staining; 1, ascochyta blight lesions ≤ 1 mm diameter; 2, ascochyta blight lesions > 1 mm and < 10% seed coverage; 3, ascochyta blight lesions > 2 mm and < 10% seed coverage; 4, ascochyta blight lesions > 3 mm and between 10 and 25% seed coverage; 5, ≥25% seed coverage.

^cRaw data in parentheses.