The reaction and sensitivity experiment of O3 on rice and winter wheat.
The reaction and sensitivity experiment of O3 on rice and winter wheat.
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发表时间：
2002
影响因子：
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通讯作者：
B. Yue
中科院分区：
文献类型：
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作者：
B. Yue
利用OTC-1型顶开式气室对我国主要粮食作物进行了不同浓度O_2的长期试验。结果表明，增加O3浓度有利于水稻生长发育。冬小麦发育前期缓慢，后期迅速。水稻和小麦灌浆期缩短，株高降低。随着通风时间的延长，干生物量呈下降趋势。冬小麦叶片含水量呈抛物线型下降，但对水稻影响不大。在相同的高O3浓度环境下，水稻叶片受O3伤害的开始时间晚于冬小麦，且伤害发展缓慢。随着O3浓度的增加，冬小麦的单株产量和千粒重降低，臭氧对冬小麦产量的损失幅度大于水稻。冬小麦对O_3浓度的反应比水稻敏感。
The long-term experiments of different O, concentrations on main food crops in China are conducted by using OTC-1 top-opened chambers. The results show that increasing O3 concentration would promote rice development. The winter wheat development would be slow in early days,but fast in late time. The milk duration and plant height of rice and wheat would be shortened. The dry biomass would be decreased with the prolong of ventilation time. The water content in leaf of winter wheat would be decreased as parabola type,but there is small impact on rice. Under the same higher O3 concentration environment,the beginning date of rice leaf injured by ozone was later than winter wheat,and the injury development slowl. With the O3 concentration increasing, the yield of per plant and thousand grains weight would be decreased, and the loss scale of winter wheat yield by ozone is greater than that of rice. The reaction of winter wheat to O3 concentration is more sensitive than that of rice.