CURVE OF WATER ABSORPTION IN SEEDS JATROPHA (Jatropha curcas L.)

The present study aimed to characterize the water absorption curve in pinhao-manso seeds (Jatrophas curcas L.), for the method test-pattern, with seeds maintained in roll of filter paper humidified in distilled water. The experimental delineation was entirely randomized, in factorial outline 2 x 16, being 2 classes of seeds (live and dith), with 16 periods of imbibitions and 4 repetitions of 10 seeds per parcel. In the tetrazolium test was accomplished to verify the non viability of the seeds. The seeds of pinhao-manso presented the three-phase germination pattern of imbibitions. Where the phase I was common for the live and deth seeds, extending for 15 hours. A live seeds just entered in the phase II, extending for 45 hours, being understood among 15 up to 60 hours of imbibition. Only live seeds entered in the phase III, after 60 hours of imbibition, when was possible to visualize the emission of the root.