摘要： 本文是关于板栗黄化机制研究的一部分.在水培条件下,无锰低铁(2ppm),叶缘先黄后枯,叶肉出现褐斑;无锰而铁大于10ppm时,全株萎蔫枯死.无铁低锰(1PPm)或无铁而锰为30ppm时,叶片呈现黄化.在本试验条件下,环境锰为30—50ppm,铁为10ppm时,植株生长正常.当环境铁为2ppm时,叶全铁量随环境锰浓度的增加而降低;当环境铁浓度为5.6或10ppm时,叶全铁量随锰浓度增加而增高.叶绿素含量的变化与叶全铁量没有明显规律;而与活性铁和Mn/Fe有明显规律:叶活性铁含量大于50ppm,Mn/Fe在1.0—1.5之间时,叶绿素含量都大于3.00mg/cm2.
关键词:
板栗,
黄化机制,
铁,
锰
Abstract: The study on the yellowing mechanism of Chinese chestnut was carried out. Under the condition of water cultivation and absence of manganese and low content of ferrum (2 ppm), the edge of leaf turned yellow and then withered, and on the mesophyll appeared brown spots. When manganese was absentand concentration of ferrum was more than 10ppm, the whole plant withered todeath. If ferrum was absent and concentration of Mn was 30ppm, leaf becameyellow.In the experiment the plant grew well when the concentration of Mn and Fe was 10-50ppm and 10ppm respectively.Concentration of total ferrum in leaf decreased with the increase of Mn content in culture solution when the concentration of Fe was 2ppm in culture solution. If the concentration of Fe was 5.6 or 10ppm in the solution, total Fe content increased with the increase of Mn. The changing of chlorophyll was irregular with total ferrum concentration, but regular with concentration of active Fe and the value of Mn/Fe. When concentration of active Fe in leaf was more than 50ppm and value of Mn/'Fe was 1.0-1.5, content of chlo'rophyll was more than 3.00 mg/cm2.
Key words:
Chinese chestnut,
Yellowing mechanism,
Manganese,
Ferrum
穆华, 郑维民, 刘如恒. 板栗黄化与铁、锰营养关系的研究[J]. 华北农学报, 1989, 4(S1): 207-213. doi: 10.3321/j.issn:1000-7091.1989.z1.037.
Mu Hua, Zheng Weimin, Liu Ruheng. A Study on the Relationship between Yellowing of Chinese Chestnut and Nutrition of Fe and Mn[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1989, 4(S1): 207-213. doi: 10.3321/j.issn:1000-7091.1989.z1.037.