Arroz: comportamento de variedades em diferentes épocas de semeadura

Abstract

1 - This paper deals with comparisons of rice varieties (four introduced from Italy and six cultivated in Brazil). The sowings were made in wet conditions and in five different periods of time. 2 - Statisticals analyses were made with data from the bloomering and maturation period, plant height, grain, leaves and steams productions, weight of thousand of spikelets, total milling and milled gradding results. 3 - The results can be summarized as follows: with exception of the total milling result, the other characterists showed significant statistical variations among periods of time of sowing for all varieties studied. The Batatais variety was precocious and showed great uniformity, being recommended for later sowing.