Boosting biopesticide potential of Trichoderma harzianum for controlling the downy mildew and improving the growth and the productivity of King Ruby seedless grape

Egyptian Journal of Biological Pest Control

Table 2 Effect of TSDCIS on vegetative growth, and weight of pruning of King Ruby seedless grapevines during 2020 and 2021 growing seasons at 30 days post the fruit set

Treatment	Number of leaves		Leaf area (cm)²		Shoot length(cm)		Weight of pruning/vine(g)
Treatment	Season 2020	Season 2021	Season 2020	Season 2021	Season 2020	Season 2021	Season 2020	Season 2021
C	16.3f	17.0e	126.6f	128.0f	196.7e	220.0e	200.0e	2166.7e
F	20.7e	21.0d	135.2e	140.2c	280.0d	288.3d	3100.0d	3200.0d
T1	24.0c	24.7bc	136.8d	137.2d	303.3bc	313.3c	3266.7cd	3466.7cd
T2	22.3d	23.3c	138.7c	135.5e	296.7c	306.7c	3466.7c	366.7bc
T3	25.3b	26.3b	141.0b	141.0b	316.7b	330.0b	3800.0b	3900.0b
T4	27.3a	28.3a	143.1a	144.7a	343.3a	253.3a	4500.0a	4600a

According to the Duncan multiple range test (P ≤ 0.05), columns denoted by a same letter are not significantly different
C, control untreated; F, fungicide; T1, whole culture of Trichoderma control; T4, whole culture of Trichoderma growing on medium supplemented with K; T3, whole culture of Trichoderma growing on medium supplemented with Mn; T2, whole culture of Trichoderma growing on medium supplemented with thiamine