Superação de dormência de sementes de feijão Guandú com diferentes tipos de água.

Abstract

Pigeon pea (Cajanus cajan (L.) Millsp.) it is a legume that belongs to the Fabaceae family, of Asian origin. Overcoming seed dormancy is a natural seed mechanism to ensure long-term species survival, which requires favorable environmental conditions for reproduction through germination. The research aimed to analyze the germination of pigeonpea in different types of water. Four types of water were evaluated, and the treatments, T1 - Commercial mineral water; T2 - Water from the Horto Florestal Olho D'água da Bica; T3 - Mixed water (50% mineral water and 50% water from the source of Olho D'água da Bica) and T4 - Rainwater. The experimental design was completely randomized, with the treatments distributed in 20 Petri dishes, with 10 seeds composing the experimental plot. At the end of the experiment, there was more seed loss caused by pathological agents than germinated. The germination of Cajanus cajan seeds obtained unsatisfactory results according to the different types of water. The pathogenic microorganisms directly affected the germination of pigeon pea seeds present in different types of water. Due to the low amount of phytomass produced, it was not possible to evaluate which type of water would influence it.