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 3 Effect of TSDCIS on the yield and its components parameters of King Ruby seedless grapevines during 2020 and 2021 growing seasons at 80 days post the fruit set

Treatment	Yield/vine(kg)		Cluster width (cm)		Cluster length (cm)		Cluster weight (g)		100 berries weight (g)		Number of clusters/Vine
Treatment	Season 2020	Season 2021	Season 2020	Season 2021	Season 2020	Season 2021	Season 2020	Season 2021	Season 2020	Season 2021	Season 2020	Season 2021
C	7.9f	9.5f	18e	19e	21e	21.3e	473.3e	493.3f	300.0f	306.0e	15.0e	16.0d
F	12.4e	14.3e	20d	22d	25d	26d	666.7d	689.1e	347.0e	363.7d	18.0d	19.0c
T1	13.4d	14.3e	23c	25c	30c	31c	720.0c	730.0d	359.3d	394.0c	19.0 cd	20.0c
T2	17.3c	22.3c	25b	26bc	33b	34b	730.0c	773.3c	390.0c	400.0bc	20.0c	23.0b
T3	19.8b	22.8b	25b	27ab	31c	33b	850b	870.0b	400.0b	403.3b	23.0b	24.3b
T4	21.8a	24.7a	27a	28a	35a	36a	900.0a	911.8a	405.0a	411.0a	25.0a	27.0a

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