Growth Promotion of Raphanus Sativus L. under Doses of Phosphorus with Application of Trichoderma Spp

Gustavo Henrique Oliveira, Leticia Silva e Carvalho, Rikelme Matheus Dos Santos Relvas, Mariana Pina da Silva Berti, Cleiton Gredson Sabin Benett, Cecilia Leao Pereira Resende and Fabricio Rodrigues

Journal of Sustainable Development, 2024, vol. 17, issue 3, 49

Abstract: This study aimed to evaluate the growth of Raphanus sativus L. under six phosphorus doses in combination with three strains of Trichoderma spp. The design was a randomized block design with seven replications in a factorial scheme, 4 x 5 (treatments and doses). Treatments related to Trichoderma spp. were T1 – control, without application of T. harzianum strain; T2 – T. harzianum ESALQ 1306, T3 – T. harzianum IBLF 006 WP, and T4 – T. asperellum URM 5911, at doses of 0, 40, 80, 120, 160, and 200 kg ha-1 of P2O5, in a greenhouse. The evaluated characteristics were tuberous root diameter (RDI), tuberous root length (RLE), relative chlorophyll index (RCI), leaf dry mass (LDM), tuberous root fresh mass (FTRM), and tuberous root dry mass (TRDM). It was observed that there was a significant difference for the different sources of variation evaluated, indicating an interaction between the different isolates and doses. It is concluded that the application of Trichoderma harzianum - ESALQ 1306 strain is recommended for radish cultivation, with increases of 13% for tuberous root length, 7% for relative chlorophyll index, 23% for leaf dry mass, 35% for tuberous root fresh mass, and 12% for tuberous root dry mass compared to the control, at a dose of 104 kg ha-1 of P2O5, with the possibility of dose reduction and more sustainable management. Additionally, strains T. harzianum IBLF 006 WP (T3) and T. asperellum URM 5911 (T4) are not recommended for radish cultivation.

Date: 2024
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