Abstract
The objective of the present study was to assess the effect of nitrogen fertilization on Guinea Grass (Panicum maximum Jacq.) cv. Tanzania seed yield and quality. The experiment was carried out under rainfall conditions in 2001 in Tejupilco, State of Mexico, Mexico, (18o 54' N, 100o 08' W, 1,320 m asl). Treatments were five Nitrogen doses (0, 50, 100, 150 and 200 kg ha-1), in a randomized complete block design, with four replicates. Variables evaluated were: total seed yield (TSY), pure seed yield (PSY), number of panicles per square meter, panicle length, branches per panicle, number of seeds produced and harvested per panicle, 1000-seed weight, physical purity and germination. Nitrogen fertilization increased both TSY and PSY (P 0.05). It can be concluded that the highest Guinea Grass seed yield was obtained when fertilized with 100 kg N ha-1.
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