园艺与种苗
園藝與種苗
완예여충묘
Rain Fed Crops
2014年
2期
32-35,59
,共5页
张国珍%曾富春%李策宏%谢孔平
張國珍%曾富春%李策宏%謝孔平
장국진%증부춘%리책굉%사공평
观赏蕨%光照强度%耐阴性%生理指标
觀賞蕨%光照彊度%耐陰性%生理指標
관상궐%광조강도%내음성%생리지표
Ornamental fern%Illumination intensity%Shade-tolerance%Physiological index
[目的]探讨峨眉山5种观赏蕨对不同光照的生理响应。[方法]以峨眉山5种优良观赏蕨类峨眉耳蕨、瘤足蕨、长叶实蕨、光石韦和井栏边草为试验材料，设置全光照、遮阴30%、遮阴50%、遮阴83%共4个光照梯度，探讨不同光照强度对5种观赏蕨生理指标的影响。[结果]光照强度对观赏蕨叶绿素a、b及叶绿素总量影响较大，在一定光照范围内，叶绿素总量随着光照强度降低而增加，而叶绿素a/b值却降低；具有较高叶绿素含量和较低的叶绿素a/b值的蕨能够在较弱光照下生活；光照胁迫下，观赏蕨的游离Pro含量、MDA含量不同程度地增加，而可溶性蛋白含量却下降；光胁迫下，观赏蕨POD酶活性增加，POD酶活性变化量及其活性高低与观赏蕨忍耐光胁迫的能力呈正相关；根据5种观赏蕨对光照的生理响应情况推测，它们的耐阴能力排序为：井栏边草>长叶实蕨>峨眉耳蕨>瘤足蕨>光石韦。[结论]研究结果为观赏蕨的开发与应用提供了参考。
[目的]探討峨眉山5種觀賞蕨對不同光照的生理響應。[方法]以峨眉山5種優良觀賞蕨類峨眉耳蕨、瘤足蕨、長葉實蕨、光石韋和井欄邊草為試驗材料，設置全光照、遮陰30%、遮陰50%、遮陰83%共4箇光照梯度，探討不同光照彊度對5種觀賞蕨生理指標的影響。[結果]光照彊度對觀賞蕨葉綠素a、b及葉綠素總量影響較大，在一定光照範圍內，葉綠素總量隨著光照彊度降低而增加，而葉綠素a/b值卻降低；具有較高葉綠素含量和較低的葉綠素a/b值的蕨能夠在較弱光照下生活；光照脅迫下，觀賞蕨的遊離Pro含量、MDA含量不同程度地增加，而可溶性蛋白含量卻下降；光脅迫下，觀賞蕨POD酶活性增加，POD酶活性變化量及其活性高低與觀賞蕨忍耐光脅迫的能力呈正相關；根據5種觀賞蕨對光照的生理響應情況推測，它們的耐陰能力排序為：井欄邊草>長葉實蕨>峨眉耳蕨>瘤足蕨>光石韋。[結論]研究結果為觀賞蕨的開髮與應用提供瞭參攷。
[목적]탐토아미산5충관상궐대불동광조적생리향응。[방법]이아미산5충우량관상궐류아미이궐、류족궐、장협실궐、광석위화정란변초위시험재료，설치전광조、차음30%、차음50%、차음83%공4개광조제도，탐토불동광조강도대5충관상궐생리지표적영향。[결과]광조강도대관상궐협록소a、b급협록소총량영향교대，재일정광조범위내，협록소총량수착광조강도강저이증가，이협록소a/b치각강저；구유교고협록소함량화교저적협록소a/b치적궐능구재교약광조하생활；광조협박하，관상궐적유리Pro함량、MDA함량불동정도지증가，이가용성단백함량각하강；광협박하，관상궐POD매활성증가，POD매활성변화량급기활성고저여관상궐인내광협박적능력정정상관；근거5충관상궐대광조적생리향응정황추측，타문적내음능력배서위：정란변초>장협실궐>아미이궐>류족궐>광석위。[결론]연구결과위관상궐적개발여응용제공료삼고。
The aim was to study the physiological response of 5 kinds of ornamental fern on Mt. Emei to light. [Method] Five native ornamental ferns (Polystichum omeiense, Plagiogyria adnata, Bolbitis heteroclite, Pyrrosia calvata and Pteris multifida) collected from Mt.Emei were tested under four level of shade degree (0%、30%、50%、83%of full sunlight), and the variation of physiological indexes of every ferns under different light intensity treatments were studied. [Result] The results showed that Chlorophyll(Chl) contents and chla/b ratio of ornamental ferns were influenced greatly by illumination intensity. As the illumination intensity weakening, Chl contents of all ferns increased and Chla/b ratio reduced. And the fern with higher Chl content and lower Chla/b ratio could live under weak light. The proline contents and MDA contents of all ferns increased constantly under light intensity stress, while the soluble protein contents decreased. The POD enzyme activity of ornamental ferns increased under light intensity stress. And the enzymatic activity of POD and it’s variation of ferns were positively correlated with their endurance abilities to light stress. According to the physiological responses to light stress of five tested ornamental ferns, the order for the shade-tolerance of them was Pteris multifida>Bolbitis heteroclita>Polystichum omeiense>Plagiogyria adnata>Pyrrosia calvata. [Conclusion] The results provided references for development and application of ornamental fern .
