文献类型：期刊文献

中文题名：遮光对油茶苗期生长及光合特性的影响

英文题名：Shading effects on growth and photosynthetic characteristics of Camellia oleifera seedling

作者：周新华[1] 桂尚上[2] 厉月桥[1] 肖智勇[3]

第一作者：周新华

机构：[1]中国林业科学研究院亚热带林业实验中心;[2]广州市林业和园林绿化工程建设中心;[3]宜春市林业科学研究所

年份：2016

卷号：36

期号：9

起止页码：23-28

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2014MB007);林业科技推广项目"微生物肥料在油茶育苗及造林中的推广运用"([2012]08号)

语种：中文

中文关键词：油茶;无性系;遮光;光合特性;苗期

外文关键词：Camellia oleifera; clones; shading; photosynthetic characteristics; seedling

分类号：S718.3;S794.4

摘要：为了探讨不同遮光环境对油茶苗期生长及光合特性的影响,以国家审定的4个长林系列油茶优良无性系2年生苗木为试验材料,研究了苗期遮光对不同无性系油茶苗木生长、光合以及叶绿素含量的影响。结果表明:适当的遮光处理能够促进油茶苗木的苗高、叶长、叶宽、单叶面积和全株叶面积的生长以及叶绿素的合成;经过2个月的遮光处理,50%全光、25%全光和12.5%全光处理植株的苗高、叶长、叶宽、单叶面积、全株叶面积和叶绿素相对含量均显著高于全光CK植株;50%全光、25%全光和12.5%全光处理植株的基径生长量均低于CK植株;在一定的检测光照强度下,4个无性系油茶的净光合速率均随着遮光强度的增强而增加,50%全光、25%全光和12.5%全光处理植株的叶片净光合速率均均显著高于全光CK植株。研究结果可为培育具有相对竞争优势的油茶上山造林壮苗提供技术支撑。
In order to explore different shading environment effect on seedling growth and photosynthetic characteristics of the, by national authorized four long series of fine clone Lin 2 a raw seedlings as test materials, shading in seedling stage was studied on different clones camellia seedlings growth, photosynthesis and chlorophyll content. The results show that the appropriate shading can promote seedlings of the seedling height, leaf length, leaf width, leaf area and the growth of the whole plant leaf area and chlorophyll synthesis; After 2 months of shading, 50% full, 25% light and 12.5% of full light processing plant seedling height, leaf length, leaf width, leaf area, total plant leaf area and chlorophyll relative content were significantly higher than that of whole light CK plant; 50% full, 25% light and 12.5% of full light processing plant base diameter growth were lower than that of CK plant; Under certain testing light intensity, four clones oleifera net photosynthetic rate are increased with the enhancement of shading intensity increased, 50% full, 25% light and 12.5% of full light processing plant leaf net photosynthetic rate were significantly higher than that of whole light CK plants. The research results can be up the hill afforestation has the relative competitive advantage of the high quality fine breed to provide technical support.