遮阴处理对红球姜生长的影响  

Effects of Shading Treatment on the Growth of Zingiber zerumbet

作　　者：宋雨欣 韩维栋[1] 尹若汐 丘建煌 杨通文 SONG Yu-xin;HAN Wei-dong;YIN Ruo-xi(Binhai Agricultural College,Guangdong Ocean University,Zhanjiang,Guangdong 524000)

机构地区：[1]广东海洋大学滨海农业学院,广东湛江524000

出　　处：《安徽农业科学》2022年第14期107-111,共5页Journal of Anhui Agricultural Sciences

基　　金：海洋公益性行业科研专项“基于地埋管网技术的受损红树林生态保育研究及示范”(201505028-6);广东海洋大学科研转结项目“滨海耐盐园林植物培育及其应用研究”(A15191)。

摘　　要：[目的]探讨遮阴处理对红球姜生长的影响。[方法]以红球姜为研究对象,设置3种不同的遮阴处理以及1组对照处理,即遮阴度为30%(T_(1))、55%(T_(2))、75%(T_(3))和自然光(CK),研究不同遮阴强度对红球姜生长情况、叶绿素含量、光合生理及渗透调节物质的影响。[结果]随着遮光强度不断增强,红球姜叶片的叶绿素a、叶绿素b和叶绿素总量均呈先增加后降低的趋势,各处理均以T_(1)处理最大。净光合速率呈先下降后上升趋势,T_(1)处理最小,CK为最大;胞间CO_(2)浓度、气孔导度和蒸腾速率均呈先下降后上升趋势,T_(2)处理为最小值,水分利用效率呈先上升后下降的趋势,以T_(2)处理最高。红球姜叶片净光合速率与气孔导度、蒸腾速率和大气CO_(2)浓度呈极显著正相关(P<0.01)。红球姜叶片的可溶性糖和MDA含量随遮阴强度增大而逐渐降低;SOD活性呈先升高后降低的趋势;相对电导率呈先下降后上升趋势,以T_(2)处理最小。[结论]综合红球姜生长情况、叶绿素含量、光合生理及渗透调节物质的变化,发现遮阴度55%左右最有利于红球姜植株的生长,说明合适的遮阴环境可以促进红球姜植株的生长发育。[Objective]To study the effect of shading treatment on the growth of Zingiber zerumbet.[Method]Three different shading treatments and a group of control treatments were set up.The shading degrees were 30%(T_(1)),55%(T_(2)),75%(T_(3))and natural light(CK)respectively.The effects of different shading intensities on the growth,chlorophyll content,photosynthetic physiology and osmoregulation substances of Zingiber zerumbet were studied.[Result]The results showed that with the increase of shading intensity,chlorophyll a,chlorophyll b and total chlorophyll content of red ginger leaves firstly increased and then decreased,and reached the maximum value at T_(1) treatment.Net photosynthetic rate firstly decreased and then increased,and it was the minimum value in T_(1) treatment and the maximum value in CK treatment.The intercellular CO_(2) concentration,stomatal conductance and transpiration rate all showed a downward trend first and then an upward trend,and reached the minimum value in T_(2) treatment.WUE increased firstly and then decreased,and reached the maximum value in T_(2) treatment.The net photosynthetic rate was positively correlated with stomatal conductance,transpiration rate and atmospheric CO_(2) concentration(P<0.01).With the increase of shading intensity,the soluble sugar content and the MDA of Zingiber zerumbet leaves decreased gradually,and the SOD activity showed a trend of first increasing and then decreasing.With the increase of shading intensity,the relative conductivity firstly decreased and then increased,and T_(2) treatment was the minimum value.[Conclusion]According to the changes of growth,chlorophyll content,photosynthetic physiology and osmotic regulation substances,it was found that the shade degree of 55%was the most beneficial to the growth of Zingiber zerumbet,indicating that the appropriate shade environment could promote the growth and development of Zingiber zerumbet.

关 键 词：红球姜 遮阴 叶绿素 光合特性 渗透调节物质 

分 类 号：S682[农业科学—观赏园艺]