不同遗传型香料烟若干性状的比较分析

对10份不同遗传型香料烟的农艺性状、产量、产值、品质性状、光合特性等性状进行比较分析，结果表明：沙姆逊×TOY和沙姆逊×Argjro两个杂种一代的综合性状表现明显地优于对照沙姆逊；香料烟杂种的优势既有正的又有负的，因不同组合而异；以沙姆逊作为母本的杂种一代在一些性状上优于相应的反交组合；不同遗传型香料烟在生长

A Comparison Study on Some Characteristics of Different Oriental TobaccoGenotypes

The agronomic characters, yields, quality characters, as well as photosynthetic characteristics of ten oriental tobacco genotypes were studied comparatively. The results indicated that the overall performance of two F 1 hybrids, namely, Samson/Toy and Samson/Argjro, was obviously superior to that of the check variety Samson. It was found that the heterosis of different F 1 combination was different; some are positive while others negative. It was also found that some characters of F 1 hybrids with Samson as the female parents were superior to those of their reciprocal crosses. And the photosynthetic rates and transpiration rates of different genotypes at different growth stages are quite different from each other. It was concluded that the utilization of F 1 hybrids on oriental tobacco breeding has great potential.