Varietal Differences of Sulfur Dioxide on Apparent Photosynthetic Rate in Rice Plants

由空气污染引起的无形伤害是众所周知的，以产生光合成分解和那些年分解。这项调查的目的是澄清硫二氧化物对水稻植物的影响。二氧化硫醚（SO-D22-D2在2.6 mgSD的速率下提供了D22-D2 m-D1-3-D1 （约1.0 ppmv/v），为15分钟，然后用清洁空气置换为60分钟，SO-D22-D2上的特定光电合成速率被三个指标确定为抑制速率，recovery ratio and Coy D22 fixation ratio。It was investigated to make a proper SO D22 treatment that was the reaction of SO D22 D2 on apparent photosynthetic rate in rice plant （cv. Koshihikari，日本主要品种）在某些情况下（个人植物或叶片、年龄、治疗时间、治疗部分等）。作为一个结果，在10天后启动阶段，使用叶子刀片进行比较，14种水稻植物中的作物从1882年到1984年在3个指标上进行了研究，研究延长了两年，由SOY D22 Y D2治疗。在所有植物中，表面的光电合成率都被硫二氧化物的应用所抑制。在3个指标中，抑制率适合于在S22和D2治疗上的各种差异，抑制率是在某些Photosynthesis中观察到的抑制率：旧的培养（CV.）。Kyotoasahi Kamenoo， Aikoku） >新的邪教（CV. Hatsuboshi， Akitakomati， Koshihikari）。

Invisible injury caused by air pollution is known to make photosynthesis decrease, and thus yields decrease. The purpose of this investigation was to make clear the effects of sulfur dioxide on rice plants. Sulfur dioxide (SOィイD22ィエD2 was supplied at the rate of 2.6mgSDィイD22ィエD2mィイD1-3ィエD1 (about 1.0ppmv/v) for 15 min. and then displaced with clean air for 60 min. SOィイD22ィエD2 on apparent photosynthetic rate was judged by three indicators were inhibition ratio, recovery ratio and CoィイD22ィエD2 fixation ratio.It was investigated to make a proper SOィイD22ィエD2 treatment that was the reaction of SOィイD22ィエD2 on apparent photosynthetic rate in rice plant (cv. Koshihikari, Japanese major variety) at some condition (individual plant or leaf blade, age, treatment time, treatment part and so on). As a result, it was good condition at the 10th day after booting stage using leaf blade in comparison with some cultivars.14 cultivars in rice plant which breeding year was from 1882 to 1984 was researched on 3 indicators by SOィイD22ィエD2 treatment extend two years. In all plants, apparent photosynthetic rate was depressed by the application of sulfur dioxide. Inhibition ratio in 3 indicators was fitted for varietal differences on SOィイD22ィエD2 treatment.Inhibition ratio which was the magnitude of the depression in apparent photosynthesis was observed in the following order : old cultivars (cv. Kyotoasahi Kamenoo, Aikoku) > new cultivars (cv. Hatsuboshi, Akitakomati, Koshihikari).