Role of bio inoculants on production of primary, secondary and tertiary roots in grapes cuttings (Vitis vinefera L.) with special reference to wine varieties

Abstract

The experiment was conducted at Division of Horticulture, Gandhi Krishi Vignana Kendra, University of Agricultural Sciences, Bangalore, There were five varieties viz. Arka Kanchan, Arka Soma, Arka Thrishna, Bangalore Blue and Queen of Vine Yard, consisting of ten treatments and the treatments consisting of Trichoderma harzianum, Glomus mossae, PSB and IBA, replicated in five and tested in a factorial completely randomized design. The results revealed that among the treatmetns, maximum number of primary, secondary and tertiary roots was recorded in treatment T8 (30.65, 84.37 and 37.05 respectively). Whereas, lowest number of primary, secondary and tertiary roots was noticed in the treatment T10 (15.34, 56.51 and 25.69 respectively). Among the varieties maximum number of primary and secondary roots was recorded in Bangalore Blue (25.15 and 79.14), Whereas incase of tertiary roots were observed in Arka Thrishna (33.28). However, least number of primary and tertiary roots was noticed in Queen of Vine Yard (19.38 and 27.61), Where as incase of secondary roots were observed in Arka Soma (59.12). Interaction effect between the treatments and varieties maximum number of primary roots was noticed in variety Bangalore Blue with treatment T8 (33.86), Where as lowest number of primary roots were recorded in Queen of Vine Yard with treatment T10 (12.64). Maximum number of Secondary roots was noticed in variety Arka Krishna with treatment T8 (95.84), Where as lowest number of secondary roots were recorded in Arka Soma with treatment T10 (49.52). Maximum number of tertiary roots was noticed in variety Arka Thrishna with treatment T8 (41.56), Where as lowest number of tertiary roots were recorded in Queen of Vine Yard with treatment T10 (23.65).