Abstract:

The purposes of this paper are to screening suitable rice cultivars for mechanization planting in hilly and mountains region. The field trials and randomized blocks design experiments were carried out to study the seedling quality, tiller dynamic, grain yield and cultivar planting character of late rice cultivars in two typical hilly and mountains regions. The experimental results indicated that: the yield of ‘ⅡYou418’ was the highest with 6.855 t/hm2 in low mountains region, and the yield of ‘Yueyou9113’was the highest in high mountains region, which reached 6.637 t/hm2. The mechanization planting late rice cultivar should have the characters of strong tiller ability, short growth period and the uniformity of the heading stage in double-rice cropping area of hilly region.