Interference of light, temperature, depth of sowing and straw on germination and emergency of Murdannia nudiflora

Flávia Nayane Luz, Oscar Mitsuo Yamashita, Danilo Aparecido Ferraresi, Marco Antônio Camillo de Carvalho, Ostenildo Ribeiro Campos, Paulo Sergio Koga, João Aguilar Massaroto

Abstract


Murdannia nudiflora, also known as trapoerabinha has been reported in recent years, as animportant weed in soybean crops under no-tillage in Brasil, due to its highly competitive with crops,poor control and rapid infestation. The present work was to study germination of seeds under lightconditions (and without) and temperature (20, 25 and 30 °C), and the emergence in straw (withand without) and sowing depth (0, 0, 1.0, 2.0, 3.0, 4.0 and 8.0 cm). The experimental design wascompletely randomized for all experiments. The species studied presents photoblastism preferred,with higher germination under light. Depths greater than 1.0 cm and the presence of mulch on thesoil surface affect the emergence of seedlings of this species.

Keywords


Brightness, Straw, Grain, Heat, Trapoerabinha



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