| 吴富勤1，张新军1，申仕康1，王跃华1，和树庄2，杨冠松1.土壤养分与水分对猪血木幼苗生长
及生理特性的影响[J].广东农业科学,2015,42(20):45-51 |
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土壤养分与水分对猪血木幼苗生长
及生理特性的影响 |
| Effect of soil nutrition and water content on theseedling growth and physiological characteristicsof Euryodendron excelsum H. T. Chang |
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| DOI： |
| 中文关键词: 土壤养分 土壤水分 濒危植物 猪血木 幼苗繁殖 |
| 英文关键词: soil nutrition soil water content endangered plant Euryodendron excelsum seedling propagation |
| 基金项目:国家水体污染控制与治理科技重大专项
（2012ZX07102-003）；国家自然科学基金（31070306） |
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| 中文摘要: |
| 采用盆栽试验，设置红壤∶腐殖土= 1∶0（ST1，体积比）、红壤∶腐殖土= 3∶1（ST2）、红壤∶
腐殖土=1∶1（ST3）、红壤∶腐殖土= 1∶3（ST4）4 个土壤养分水平以及对照（W1）、轻度干旱胁迫（W2）、
中度干旱胁迫（W3）和严重干旱胁迫（W4）4 个水分处理水平，研究土壤养分与水分对猪血木幼苗生长及
生理特性的影响。结果表明，土壤养分与水分对猪血木幼苗丙二醛、脯氨酸及可溶性糖含量影响显著；叶绿素
a、叶绿素b、叶绿素a+b 和类胡萝卜素含量均分别随着土壤养分与水分的降低而降低；猪血木幼苗不同营养
器官生物量随着土壤养分的增加而先增加后降低，并在ST3 土壤基质下达到最大值；叶片含水量和相对含水
量均随土壤水分含量的降低而显著降低，而水分饱和亏和水分组织密度则增加。 |
| 英文摘要: |
| With the pots experiments，four soil nutrition levels were designed in the experiment，such as red
soil：humus= 1∶0（ST1），red soil：humus=3∶1（ST2），red soil：humus=1∶1（ST3）and red soil：humus=1∶3
（ST4）. Four soil water levels including control（W1），light water stress（W2），moderate water stress（W3），and
severe water stress（W4）were designed to elucidate the effects of different soil nutrition and water content on seedling
growth and its physiological characteristics of an endangered plant Euryodendron excelsum H. T. Chang. The results
showed that soil nutrition and water content had significant effects on the content of soluble sugar，malondialdehyde，
and proline of seedlings. The photosynthetic pigments contents such as chlorophyll a，chlorophyll b，chlorophyll a+b
and carotenoid decreased with the decrease of the water and nutrition content in the soil. Seedling biomass increased with
the increase of soil nutrition and reached its maximum in ST3，and then decreased in ST4. The leaf water content and
relative water content also significantly decreased with decreasing soil water content. However，the leaf water saturated
deficit and tissue density showed a contrary tendency |
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