摘要
通过大田试验和室内分析的方法研究了潮土上施钾对小麦生理性状和品质的影响,结果表明,两个小麦品种体内的超氧化物歧化酶(SOD)活性不同,随着外界供钾条件的变化,其变化幅度也不同。温麦6号表现出SOD活性增减幅度变化较小,植株体内产生的活性氧相对较少,而兰考906—4的SOD活性增减幅度较大,易发生活性氧伤害。旗叶的光合速率,温麦6号受外界供钾的因素影响较小,有稳定的光合速率,从而促进产量的形成。钾不仅促进小麦品质的提高,而且还会影响品质组分,从小麦品种加工品质而言,温麦6号优于兰考906—4。
Field trial and lab analysis were used to study effect of potassium on the physiological character and quality of wheat in fluvo - aquic. The results showed, the SOD activity was different in the bodies of two wheat varieties. With the change of external offered K conditions, their changing ranges were not identical. Wenmai-6 showed the SOD activity was more stable. That ex- plained the produced active oxygen in its body was low relatively. The SOD activity of Lankao 906--4 was reduced significantly, so the leaf was liable to be harmed by active oxygen. The photosynthesis rate of flag leaf of Wenmai-6 was less affected by exter- nal offered K factors. It explained that its photosynthesis rate was stable to promote the form of yield. K not only advanced the rise of wheat quality but also affected the component of quality, too. K had the different influence to trial two wheat varieties. As for as wheat processed quality connected, Wenmai-6 was prior to Lankao 906-4.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2007年第6期38-41,共4页
Soil and Fertilizer Sciences in China
基金
河南省青年骨干教师资助项目(2003100)"国家粮丰工程"河南课题之"小麦夏玉米两熟制农田节本增效施肥技术的研究"专题(2004BA520A06-10)
关键词
小麦品种
钾
生理性状
wheat
potassium
physiological character
quality
