渍水胁迫对桑树幼苗根系生长的影响
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摘要
试验以8036×农14和桂优12号2个桑种幼苗为研究对象模拟渍水胁迫,通过测定渍水胁迫下2个桑种幼苗根系的生长指标、形态及质膜相对透性,研究了渍水胁迫对不同桑种幼苗根系生长和生理特性的影响。结果表明,渍水胁迫对2个桑种幼苗根系的影响程度不同;渍水胁迫下桑树幼苗根系鲜质量和干质量下降,幼苗总根长、表面积、总体积、根尖数降低,根系平均直径增加,根系质膜相对透性升高。
In this study, seedlings of 8036×Nong 14 and Guiyou 12 were used to simulate the waterlogging stress. The root growth,physiological characteristics and relative permeability of two mulberry seedlings under waterlogging stress were measured. The effects of waterlogging stress on the root growth and physiological characteristics of different mulberry species were studied. The results showed that the effect of waterlogging stress on the roots of 2 mulberry seedlings was different. Under waterlogging stress, the root fresh quality and dry quality of mulberry seedlings decreased, the total root length, surface area, total volume, root tip number of the seedlings decreased, the average root diameter increased, and the relative permeability of root plasma membrane increased.
In this study, seedlings of 8036×Nong 14 and Guiyou 12 were used to simulate the waterlogging stress. The root growth,physiological characteristics and relative permeability of two mulberry seedlings under waterlogging stress were measured. The effects of waterlogging stress on the root growth and physiological characteristics of different mulberry species were studied. The results showed that the effect of waterlogging stress on the roots of 2 mulberry seedlings was different. Under waterlogging stress, the root fresh quality and dry quality of mulberry seedlings decreased, the total root length, surface area, total volume, root tip number of the seedlings decreased, the average root diameter increased, and the relative permeability of root plasma membrane increased.
引文
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[14]王琼,张春雷,李光明,等.渍水胁迫对油菜根系形态与生理活性的影响[J].中国油料作物学报,2012,34(2):157-162.
[15]汪贵斌,曹福亮,张晓燕,等.涝渍胁迫对不同树种生长和能量代谢酶活性的影响[J].应用生态学报,2010,21(3):590-596.
[16]欧毅,王进,吴天强,等.水分胁迫对桃形李叶片含水量、质膜透性和抗氧化酶活性的影响[J].西南农业学报,2007,20(5):982-985.
[17]郑舒文,徐其隆,邹华文.γ-氨基丁酸对渍水胁迫下小麦产量的影响[J].湖北农业科学,2016,55(1):31-33.
[2]邓文,莫荣利,李勇,等.淹水胁迫对桑树生长及生理特性的影响[J].湖北农业科学,2017,56(23):4559-4563,4567.
[3]毛景山,朱淑杰.桑树的生长特性及适生条件[J].农业与技术,2013,33(2):45-47.
[4]姚芳,倪吾钟,杨肖娥.桑树的种质资源生态适应性及其应用前景[J].科技通报,2004,20(4):289-292.
[5]刘挺,王福海.全国生态桑及桑树生态产业学术研讨会在陕西杨凌召开[J].北京蚕业,2012,33(3):806.
[6]陈敏刚,金佩华,鲁兴萌,等.蚕桑生态系统服务功能价值的初步评估[J].蚕业科学,2005,31(3):316-320.
[7]孙雪萍,刘某承,王斌.山东夏津黄河故道古桑树群生态系统服务功能分析[J].世界农业,2015(11):107-114.
[8]张建军,任荣荣,朱金兆,等.长江三峡水库消落带桑树耐水淹试验[J].林业科学,2012,48(5):154-158.
[9]王琼,张春雷,李光明,等.渍水胁迫对油菜根系形态与生理活性的影响[J].中国油料作物学报,2012,34(2):157-162.
[10]贾新平,邓衍明,孙晓波,等.盐胁迫对海滨雀稗生长和生理特性的影响[J].草业学报,2015,24(12):204-212.
[11]AHMED S,NAWATA E.Alterations in photosynthesis and some antioxidant enzymatic activities of mungbean subjected to waterlogging[J].Plant Science,2002,163(1):117-123.
[12]周广生,朱旭彤.湿害后小麦生理变化与品种耐湿性的关系[J].中国农业科学,2002,35(7):777-783.
[13]僧珊珊,王群,李潮海,等.淹水胁迫下不同玉米品种根结构及呼吸代谢差异[J].中国农业科学,2012,45(20):4141-4148.
[14]王琼,张春雷,李光明,等.渍水胁迫对油菜根系形态与生理活性的影响[J].中国油料作物学报,2012,34(2):157-162.
[15]汪贵斌,曹福亮,张晓燕,等.涝渍胁迫对不同树种生长和能量代谢酶活性的影响[J].应用生态学报,2010,21(3):590-596.
[16]欧毅,王进,吴天强,等.水分胁迫对桃形李叶片含水量、质膜透性和抗氧化酶活性的影响[J].西南农业学报,2007,20(5):982-985.
[17]郑舒文,徐其隆,邹华文.γ-氨基丁酸对渍水胁迫下小麦产量的影响[J].湖北农业科学,2016,55(1):31-33.