烤烟早熟品种PVH19引种试验初报

为研究巴西引进烤烟早熟品种PVH19在云南烟区的品种表现，在云南省16个地点对该品种进行引种试验，各试验点均采取随机区组排列，3次重复。综合引种试验结果，烤烟品种PVH19株式塔型，打顶株高103.5cm，有效叶数20.6片，叶形长椭圆形，茎叶角度中等，主脉中等偏粗，田间整齐度高，成熟性好，田间长势较强；平均大田生育期111.9d，比对照K326短11d；经济性状与对照K326相近；中抗黒胫病和赤星病，抗TMV，烤后原烟颜色桔黄，光泽度适中偏强，油分中等，叶片结构疏松，叶片厚度适中偏薄，外观质量较好，内在化学成分协调。结果表明：烤烟品种PVH19早熟、适应性广、综合抗性好、优质、适产

S572.022

Newly-introduced and early maturity tobacco variety of PVH19 was tested at 16 places. The results are as follow: PVH19 grow rather uniformly in the field with tower shapes; The been topped plant height of PVH19 is 107.5 cm with 19.7 harvestable leaves; The leaf is in ellipse shape with moderate angle between leaf and stalk, and with moderate to strong leaf midrib; The yield is similar to the yield of K326, and average days needed for staying in the field from being transplanted to being harvested is 111.9 d, shorter 11 days than K326; PVH19 is resistant to the TMV, moderately resistant to the black shank and brown spot; The flue-cured leaves are yellow with most in orange color, the luster of the cured leaves is moderate to strong with moderate oil and loose structure, and the leaf is in moderate to thin thickness, and is good in quality. It indicated that tobacco variety of PVH19 is early maturity, wide adaptability, rich comprehensive resistance to diseases, high quality and appropriate yield.