Hydric and thermic influence on the growth and development of Ocimum gratissimum L.
DOI:
https://doi.org/10.70151/9f0tps79Keywords:
Ocimum gratissimum, growth, water stress, essencial oil, eugenolAbstract
The influence of different water handling (0%, 50%, 75% and 100% of water supply) and of the thermal readiness (degree-days) were verified for 10 weeks on the growth and development of Ocimum gratissimum var. macrophyllum. The individuals were weekly appraised with relationship to the cutting propagation, growth of aerial part, flowering and phytomass. From the 4th week of cultivation, the water becomes a limitante factor of the growth of O. gratissimum var. macrophyllum, taking the death all the individuals under full water deficit. With 100% of available water was verified a high cutting propagation and aerial part growth. The flowering of O. gratissimum var. macrophyllum was advanced in two weeks with 75% of water supply. The fresh weight of aerial part was significantly high in those individuals with larger water supply. Chromatographic analyses of essential oil of O. gratissimum var. macrophyllum showed the eugenol as the major compound of the variety studied.
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