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不同缺素处理对红厚壳幼苗生长的影响     被引量:11

Effects of different nutrient deficiency on Calophyllum inophyllum L.seedlings

文献类型:期刊文献

中文题名:不同缺素处理对红厚壳幼苗生长的影响

英文题名:Effects of different nutrient deficiency on Calophyllum inophyllum L.seedlings

作者:贾瑞丰[1] 尹光天[1] 杨锦昌[1] 李荣生[1] 邹文涛[1]

第一作者:贾瑞丰

机构:[1]中国林业科学研究院热带林业研究所

年份:2012

卷号:36

期号:6

起止页码:33-36

中文期刊名:南京林业大学学报:自然科学版

收录:CSTPCD;;北大核心:【北大核心2011】;CSCD:【CSCD2011_2012】;

基金:中国林业科学研究院院所专项资金项目(RITFYWZX200901);"十一五"国家科技支撑计划(2009BADB2B0303-1)

语种:中文

中文关键词:红厚壳;缺素症;幼苗生长;养分状况

外文关键词:Calophyllum inophyllum L.; nutrient deficiency; seedling growth; nutrient status

分类号:S723

摘要:设置全素、缺氮、缺磷、缺钾、缺钙、缺镁和缺硫7种处理,采用温室水培方法进行红厚壳苗期缺素试验。结果表明:(1)各缺素处理均对幼苗产生影响,主要表现为植株矮小,叶片变黄,部分出现褐斑及坏死等现象,其中缺氮、缺钾和缺硫处理的症状最为明显。(2)与对照相比,各缺素处理的地径、叶面积、苗高以及生物量均显著降低,缺氮和缺硫处理幼苗的光合色素含量显著低于全素处理。(3)缺素处理导致叶片养分元素之间产生一定的协同和拮抗作用,各缺素处理中缺乏的元素是幼苗生长的第1限制因子,但第2限制因子存在差异。
A greenhouse hydroponic experiment was conducted to study the effects of different nutrient deficiency on Calophyllum inophyllum L.seedlings under seven treatments: complete nutrient mixture(CK),minus nitrogen(-N),minus phosphorus(-P),minus potassium(-K),minus calcium(-Ca),minus magnesium(-Mg) and minus sulfur(-S).The results indicated that:(1)All treatment of nutrient deficiency showed negative effect on the seedlings,such as undersized plant,leaf discoloration,brown patches and necrosis.These phenomenon were especially worse within the-N,-K and-S seedlings.(2) Nutrient deficiency seedlings showed significant decreases in ground diameter,leaf area,height and biomass compared with CK.The pigment contents of-N and-S seedlings were significantly lower than those of CK.(3)Vector analyses indicated that the foliar nutrients of different treatments show definite synergism or antagonism,the deficiency nutrient was the first limiting factor,while the second limiting factor was different.

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