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用N~+离子注入不同含水量的种子,其胚自由基相对含量与水份含量呈抛物线关系,水份含量在12%—14%之间,自由基含量较高,但水份大于14%时,随水份含量增加,自由基产额下降。种子含水量与发芽率、根长、苗高的损伤率关系均可用指数方程Y=ae~(bx)来描述,但水份含量大于15%时,种子对离子束的敏感性明显增强,自由基含量与发芽率、根长和苗高的损伤率呈负相关,而含水量在15%以下时,自由基含量与上述性状的损伤率呈正相关。N~+离子注入棉子较适宜的含水量为12—14%。
The seeds with different water contents were infused with N ~ + ions, the relative content of their free radicals and the water content showed a parabolic relationship. The water content was between 12% -14%, and the content of free radicals was high, but the water content was more than 14% When, with the increase of moisture content, free radical yield decreased. The relationship between seed water content and germination rate, root length and seedling height damage rate can be described by the exponential equation Y = ae ~ (bx). However, when the moisture content is more than 15%, the seed sensitivity to ion beam is significantly enhanced. The basal content was negatively correlated with the germination rate, the root length and the seedling height injury rate. However, when the water content was below 15%, the content of free radicals was positively correlated with the above damage rate. The suitable water content of N ~ + ion implanted cotton is 12-14%.