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

二氧化硫对水稻表观光合速率的影响的品种差异

基本信息

批准号：
10660013
负责人：
TANIYAMA Tetsro
金额：
$ 2.05万
依托单位：
Mie University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10660013/
关键词：
Air pollutant cultivar Inhibition ratio photosynthesis rice plant Sulfur dioxide 回復率

项目摘要

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).

空气污染造成的无形伤害会使光合作用降低，从而导致产量下降。本研究的目的是弄清二氧化硫对水稻的影响。二氧化硫以2.6mg/L SO_（22）D_2/L SO_（22）D_1 -3 SO_（22）D_1（约1.0ppmv/v）处理15 min后，用洁净空气置换60 min。研究了SO_4 ~（D22）O_2 ~（D2）对水稻表观光合速率的影响，确定了适宜的SO_4 ~（D22）O_2 ~（D2）处理，即SO_4 ~（D22）O_2 ~（D2）对水稻表观光合速率的影响。越光，日本主要品种）在一定条件下（单株或叶片，年龄，处理时间，处理部位等）。结果表明，孕穗后10天叶片的生长状况较好，与部分品种相比，表现出较好的生长状况。本研究以1882 ~ 1984年育成的14个水稻品种为材料，用SO_（22）、SO_（22）、SO_（22）、SO_（22）、SO_（22）处理2年，对3项指标进行了研究。在所有植物中，表观光合速率被二氧化硫的应用所抑制。3个指标的抑制率与SO_（10）D_（22）D_（22）处理的品种间差异相吻合。Kyotoasahi Kamenoo，Aikoku）>新品种（cv. Hatsuboshi，Akitakomati，Koshihikari）。