Effects of Soil Moisture and Light Intensity on Growth and Photosynthetic Characteristics of Pterospermum kingtungense Seedlings

doi:10.7525/j.issn.1673-5102.2022.03.020

Abstract

Abstract:

One-year-old seedlings of Pterospermum kingtungense were selected as materials， effects of soil moisture and light intensity on growth（aboveground biomass， underground biomass， leaf number and plant height） and photosynthetic characteristics（net photosynthetic rate， transpiration rate， stomatal conductance， intercellular carbon dioxide concentration， stomatal limiting value and instantaneous water use efficiency） of P. kingtungense seedlings were investigated respectively. Two-factor of controlled test was analyzed. Six soil moisture gradients（100%， 90%， 80%， 60%， 40% and 30% field capacity） and four light intensity gradients（100%， 75%， 50％ and 25％full light） were designed respectively. The results showed that： ①With the decrease of soil moisture， the growth index and photosynthetic characteristics of P. kingtungense seedlings first increased and then decreased， and generally reached the peak in W2（32.11%） or W3（28.54%） treatment. It performed worst under drought stress（W6）. ②With the decrease of light intensity， except stomatic limitations（L_s）， the four growth indexes and other five photosynthetic characteristics of P. kingtungense seedlings showed a trend of first increasing and then decreasing， and all of them performed best under the light intensity of L2（75% full light） or L3（50% full light）. ③The comprehensive evaluation scores of different soil moisture and different light intensity showed that the comprehensive evaluation score of W2 soil moisture or L2 light intensity was the highest respectively， which proved that the appropriate soil water environment and moderate shading were the most suitable for the growth and photosynthesis of P. kingtungense seedlings. ④The results of binary linear regression analysis demonstrated that soil moisture and light intensity had significant effects on the growth and photosynthesis of P. kingtungense seedlings， respectively. This study elucidates the mechanism of soil water and light on regeneration of P. kingtungense seedlings， and could provide a theoretical basis for seedling breeding and population recovery and reconstruction in the future to a certain extent.

Key words: Pterospermum kingtungense, soil moisture, light intensity, natural regeneration

CLC Number:

Q945.11

Shanshan ZHANG, Chunming YUAN. Effects of Soil Moisture and Light Intensity on Growth and Photosynthetic Characteristics of Pterospermum kingtungense Seedlings[J]. Bulletin of Botanical Research, 2022, 42(3): 502-511.

References

1	张珊珊，向振勇，康洪梅，等.云南蓝果树凋落物对其天然更新的影响［J］.东北林业大学学报，2016，44（1）：6-10.
1	ZHANG S S， XIANG Z Y， KANG H M，et al.Effects of Nyssa yunnanensis litter on its nature regeneration［J］.Journal of Northeast Forestry University，2016，44（1）：6-10.
2	HICKE J A， ZEPPEL M J B.Climate-driven tree mortality：insights from the pi?on pine die-off in the United States［J］.New Phytologist，2013，200（2）：301-303.
3	ZHANG S S， SHI F Q， YANG W Z，et al.Autotoxicity as a cause for natural regeneration failure in Nyssa yunnanensis and its implications for conservation［J］.Israel Journal of Plant Science，2015，62（3）：187-197.
4	孙恒，张燕平，吴疆翀，等.干旱胁迫和遮光对印楝幼苗生长及碳氮代谢的影响［J］.西北植物学报，2020，40（3）：463-470.
4	SUN H， ZHANG Y P， WU J C，et al.Effect of drought stress and shading on growth and carbon-nitrogen metabolism of Azadirachta indica seedlings［J］.Acta Botanica Boreali-occidentalia Sinica，2020，40（3）：463-470.
5	李先民，刘新亮，李春牛，等.不同光照条件下杜鹃红山茶幼苗的生长效应及抗氧化生理响应［J］.热带作物学报，2019，40（4）：688-692.
5	LI X M， LIU X L， LI C N，et al.Growth and antioxidant physiology effects of Camellia azalea seedlings under different light conditions［J］.Chinese Journal of Tropical Crops，2019，40（4）：688-692.
6	张珊珊，杨文忠，康洪梅，等.光强和土壤含水量对云南蓝果树幼苗生长及光合特征的影响［J］.东北林业大学学报，2018，46（3）：16-23.
6	ZHANG S S， YANG W Z， KANG H M，et al.Effects of light intensities and water conditions on growth and photosynthetic characteristics of Nyssa yunnanensis seedlings［J］.Journal of Northeast Forestry University，2018，46（3）：16-23.
7	徐清，闭鸿雁，崔光帅，等.珍稀濒危植物毛果木莲幼苗光合特性及对遮阴处理的响应［J］.南京林业大学学报（自然科学版），2019，43（6）：46-52.
7	XU Q， BI H Y， CUI G S，et al.Response of photosynthetic fluorescence of the endangered plant Manglietia ventii seedlings to shade treatment［J］.Journal of Nanjing Forestry University（Natural Sciences Edition），2019，43（6）：46-52.
8	REN Y D， ZHU Y N， WANG Q，et al.Transcriptome of Pterospermum kingtungense provides implications on the mechanism underlying its rapid vegetative growth and limestone adaption［J］.Scientific Reports，2017，7（1）：3198.
9	杨文忠，向振勇，张珊珊，等.极小种群野生植物的概念及其对我国野生植物保护的影响［J］.生物多样性，2015，23（3）：419-425.
9	YANG W Z， XIANG Z Y， ZHANG S S，et al.Plant species with extremely small populations （PSESP） and their significance in China’s national plant conservation strategy［J］.Biodiversity Science，2015，23（3）：419-425.
10	袁春明，司马永康，耿云芬，等.濒危植物景东翅子树的萌生特征［J］.东北林业大学学报，2012，40（3）：113-114，122.
10	YUAN C M， SIMA Y K， GENG Y F，et al.Sprouting traits of endangered plant Pterospermum kingtungense ［J］.Journal of Northeast Forestry University，2012，40（3）：113-114，122.
11	薛薇.SPSS统计分析方法及应用［M］.北京：电子工业出版社，2004：326-348.
11	XUE W.SPSS statistical analysis method and its application［M］.Beijing：Electronic Industry Press，2004：326-348.
12	郭文霞，赵志江，郑娇，等.土壤水分和氮素的交互作用对油松幼苗光合和生长的影响［J］.林业科学，2017，53（4）：37-48.
12	GUO W X， ZHAO Z J， ZHENG J，et al.Interaction of soil water and nitrogen on the photosynthesis and growth in Pinus tabulaeformis seedlings［J］.Scientia Silvae Sinicae，2017，53（4）：37-48.
13	BHUSAL N， LEE M， HAN A R，et al.Responses to drought stress in Prunus sargentii and Larix kaempferi seedlings using morphological and physiological parameters［J］.Forest Ecology and Management，2020，465：118099.
14	马晓东，钟小莉，桑钰.干旱胁迫下胡杨实生幼苗氮素吸收分配与利用［J］.生态学报，2018，38（20）：7508-7518.
14	MA X D， ZHONG X L， SANG Y.Characteristics of nitrogen absorption，distribution，and utilization by Populus euphratica seedlings under drought stress［J］.Acta Ecologica Sinica，2018，38（20）：7508-7518.
15	杨焜，马红媛，魏继平，等.紫花苜蓿和羊草种子出苗和幼苗生长对土壤含水量的响应［J］.生态学杂志，2018，37（4）：1089-1094.
15	YANG K， MA H Y， WEI J P，et al.Responses of seed germination and seedling growth of Medicago sativa and Leymus chinensis to soil moisture［J］.Chinese Journal of Ecology，2018，37（4）：1089-1094.
16	MORIN X， FAHSE L， JACTEL H，et al.Long-term response of forest productivity to climate change is mostly driven by change in tree species composition［J］.Scientific Reports，2018，8（1）：5627.
17	ZHANG S S， KANG H M， YANG W Z，et al.Climate change-induced water stress suppresses the regeneration of the critically endangered forest tree Nyssa yunnanensis ［J］.PLoS One，2017，12（8）：e0182012.
18	CHOAT B， JANSEN S， BRODRIBB T M，et al.Global convergence in the vulnerability of forests to drought［J］.Nature，2012，491（7426）：752-755.
19	刘文瑜，杨发荣，黄杰，等.干旱胁迫对藜麦幼苗生长和叶绿素荧光特性的影响［J］.干旱地区农业研究，2019，37（4）：171-177.
19	LIU W Y， YANG F R， HUANG J，et al.Effects of drought stress on chlorophyll fluorescence properties and seedling growth of quinoa seedlings［J］.Agricultural Research in the Arid Areas，2019，37（4）：171-177.
20	常巍，李雪，周燕飞，等.基于苗期叶片形态及光合特性的苜蓿种质资源抗旱性综合评价［J］.西北农林科技大学学报：自然科学版，2020，48（5）：57-68.
20	CHANG W， LI X， ZHOU Y F，et al.Screening of drought resistance indices and comprehensive evaluation of alfalfa germplasm resources based on leaf morphology and photosynthetic characteristics at seedling stage［J］.Journal of Northwest A&F University：Natural Science Edition，2020，48（5）：57-68.
21	BHUSAL N， HAN S G， YOON T M.Impact of drought stress on photosynthetic response，leaf water potential，and stem sap flow in two cultivars of bi-leader apple trees （Malus × domestica Borkh.）［J］.Scientia Horticulturae，2019，246：535-543.
22	JIN E J， YOON J H， BAE E J，et al.Photosynthesis and chlorophyll fluorescence of evergreen hardwoods by drying stress［J］.Korean Journal of Agricultural and Forest Meteorology，2019，21（3）：196-207.
23	张建国，李吉跃，沈国舫.树木耐旱特性及其机理研究［M］.北京：中国林业出版社，2000.
23	ZHANG J G， LI J Y， SHEN G F.Study on characteristics and mechanism of drought tolerance of trees［M］.Beijing：China Forestry Press，2000.
24	戴文君，韦秋思，赵毅辉，等.光强对细叶云南松幼苗成活率及生长的影响［J］.西南农业学报，2017，30（3）：569-573.
24	DAI W J， WEI Q S， ZHAO Y H，et al.Effects of light intensity on seedling survival rate and growth of Pinus yunnanensis var.tenuifolia ［J］.Southwest China Journal of Agricultural Sciences，2017，30（3）：569-573.
25	闫兴富，刘建利，贝盏临，等.不同光强条件下柠条锦鸡儿的种子萌发和幼苗生长特征［J］.生态学杂志，2015，34（4）：912-918.
25	YAN X F， LIU J L， BEI Z L，et al.Characteristics of seed germination and seedling growth of Caragana korshinskii under different light intensities［J］.Chinese Journal of Ecology，2015，34（4）：912-918.
26	王明援，刘宁，李波，等.不同光强对6个欧美杨无性系苗期生长及光合特性的影响［J］.林业科学研究，2020，33（1）：123-130.
26	WANG M Y， LIU N， LI B，et al.Effects of light intensity on the growth and photosynthetic characteristics of six Populus × euramericana clones at seedling stage［J］.Forest Research，2020，33（1）：123-130.
27	赵明，张红香，颜宏，等.光照强度对六种草地植物种子萌发和幼苗生长的影响［J］.生态科学，2018，37（2）：25-34.
27	ZHAO M， ZHANG H X， YAN H，et al.Effects of light intensity on seed germination and seedling growth of six species in grassland［J］.Ecological Science，2018，37（2）：25-34.
28	熊静，王臣，邢文黎，等.朱砂根幼苗在不同光照强度下的形态和生理响应［J］.植物科学学报，2018，36（5）：736-744.
28	XIONG J， WANG C， XING W L，et al.Morphological and physiological responses of Ardisia crenata seedlings under different light intensities［J］.Plant Science Journal，2018，36（5）：736-744.
29	陈本学，范少辉，刘广路，等.光照和水分对白藤幼苗生长特性的影响路径关系研究［J］.西北植物学报，2020，40（1）：95-103.
29	CHEN B X， FAN S H， LIU G L，et al.Pathway relationship between light and water on growth characteristics of Calamus tetradactylus seedlings［J］.Acta Botanica Boreali-occidentalia Sinica，2020，40（1）：95-103.
30	杨金凤.土壤含水量和光强对垂盆草生长及其药材品质影响的研究［D］.南京：南京农业大学，2018.
30	YANG J F.Effects of soil moisture and light intensity on growth and quality of Sedum sarmentosum Bunge［D］.Nanjing：Nanjing Agricultural University，2018.

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