[1]方贵荣,陈友吾,朱玲琴,等.淹水胁迫对枫香树幼苗生长和光合特性的影响[J].浙江林业科技,2019,39(03):45-50.[doi:10.3969/j.issn.1001-3776.2019.03.007]
 FANGGui-rong,CHENYou-wu,ZHU Ling-qin,et al.Effect of Water Logging Stress on Growth and Photosynthetic Characteristics of LiquidambarformosanaSeedlings[J].Journal of Zhejiang Forestry Science and Technology,2019,39(03):45-50.[doi:10.3969/j.issn.1001-3776.2019.03.007]
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淹水胁迫对枫香树幼苗生长和光合特性的影响()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
39
期数:
2019年03期
页码:
45-50
栏目:
研究简报
出版日期:
2019-08-31

文章信息/Info

Title:
Effect of Water Logging Stress on Growth and Photosynthetic Characteristics of LiquidambarformosanaSeedlings
文章编号:
1001-3776(2019)03-0045-06
作者:
方贵荣1陈友吾2朱玲琴2宋其岩2杜国坚2
1.浙江省开化县林场,浙江开化 324300;2.浙江省林业科学研究院,浙江杭州 310023
Author(s):
FANGGui-rong1CHENYou-wu2ZHU Ling-qin2SONGQi-yan2DUGuo-jian2
1.Kaihua Forestry Farm of Zhejiang, Kaihua 324300, China; 2.Zhejiang Academy of Forestry, Hangzhou 310023, China
关键词:
枫香树幼苗水淹胁迫生长光合作用
Keywords:
water logging stress Liquidambarformosana photosynthesis characteristics
分类号:
S792
DOI:
10.3969/j.issn.1001-3776.2019.03.007
文献标志码:
A
摘要:
以1年生枫香树Liquidatubaformosana容器苗为试验材料,研究根淹和冠淹2种淹水胁迫对枫香树生长和光合特性的影响。结果表明,根淹和冠淹胁迫下枫香树均生长旺盛,高生长和生物量积累都显著高于常规水分条件(P<0.05),产生了叶面积减小、皮孔增大和茎秆增粗等适应水淹环境的形态变化;光合能力总体上呈现出先升高后减低的趋势,胁迫初期,枫香树的光合能力升高,表现为净光合速率(Pn)增大、光补偿点(LCP)下降而光饱和点(LSP)升高,光合日变化曲线在胁迫初期为双峰型,后逐渐平缓,胁迫使光抑制提前。胁迫45d后,光合能力显著下降(P<0.05),胁迫解除后恢复,枫香树能够60d内耐深淹,且长势良好,表明枫香树幼苗具有较强的耐根淹和冠淹抗性。
Abstract:
In March of 2015, 1-year container seedlings of Liquidatubaformosanawere pot cultured atgreenhouse in Hangzhou, Zhejiang province.Experiments were conducted on effect of root and crown flooding on growth and photosynthesis.The results indicated that height growth and biomass accumulation of flooding seedlings was evidently higher than that of CK.Morphological changes wereobserved on treated L.formosanaseedlings, such as decreaseof leaf area, largerstem andlenticels.The activity of photosynthesis of treated seedlings increased obviously at beginning, resulting larger net photosynthetic rate, decrease of light compensate point and increase of light saturation point, and then decreased with the durationof water logging.The diurnalchange curve of Pn changed into single peak with earlier photosynthetic inhibition.Photosynthesis capacityof seedlings treated by water logging decreased significantly45 days later.The experiment resulted thatL.formosanaseedlings could be resistant to 60 days of crown logging, indicating strong resistance against water logging.

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备注/Memo

备注/Memo:
收稿日期:2018-10-11;修回日期:2019-02-16
作者简介:方贵荣,工程师,从事良种繁育研究;E-mail:2485211780@qq.com。通信作者:宋其岩,助理研究员,从事森林培育研究;E-mail:155086605@qq.com。
更新日期/Last Update: 2019-08-20