ZHANG Juping,ZHANG Huiling,REN Lili,et al.Effects of Different Concentrations of Vitamin C on Root Growth of Pepper Seedling Under Drought Stress[J].Northern Horticulture,2017,41(21):13-17.[doi:10.11937/bfyy.20172048]
不同浓度维生素C对干旱胁迫下辣椒苗期根系生长的影响
- Title:
- Effects of Different Concentrations of Vitamin C on Root Growth of Pepper Seedling Under Drought Stress
- Keywords:
- pepper; root; drought stress; vitamin C
- 文献标志码:
- A
- 摘要:
- 以辣椒苗为试材,采用盆栽称重法将辣椒土壤含水量控制在40%~50%,将不同浓度的维生素C溶液(0、20、40、60、80、100、120 mg?L-1)对辣椒叶面进行喷施,通过测定辣椒根系的形态指标和生理指标,研究了不同浓度维生素C对干旱胁迫下辣椒苗期根系生长的影响。结果表明:一定浓度的维生素C能够缓解干旱胁迫对辣椒根系生长的影响,提高辣椒根系的吸水和保水能力;表现为低浓度促进,高浓度抑制,维生素C浓度为40 mg?L-1时,干旱缓解效果最显著,根系的含水量、质膜透性分别比对照减少2.58%和11.46%,辣椒根系长度、根系活力、过氧化氢酶(CAT)活性、脯氨酸(Pro)含量分别比对照增加0.273%、1.33%、11.1%和13.61%,过氧化物酶(POD)活性比对照增加12倍。
- Abstract:
- Pepper seedling was used as test material,the soil moisture in 40%-50% was controled by using the weighing method for potted and sprayed different concentrations of vitamin C on the leaf of pepper.The concentrations were 0,20,40,60,80,100,120 mg?L-1,respectively.Morphological and physiological indexes of pepper root were measured and explored effects of drought stress and vitamin C on growth of pepper seedling root.The results showed that,a certain concentration of vitamin C could alleviate the effects of drought stress on root growth of pepper and improve the absorption of pepper roots and water retention ability.Meanwhile,low concentrations of vitamin C promoted the growth of pepper roots while high concentrations inhibited.The effect was the most significant when the concentration was 40 mg?L-1.Root length increased by 0.273%.Root water content and membrane permeability decrease by 2.58% and 11.46%,respectively.Root activity,CAT activity,Pro content and POD activity increased 1.33%,11.1%,13.61% and 12 times than that of control,respectively.
参考文献/References:
[1]山立,邹宇锋.我国旱区农业的地位和发展潜力及政策建议[J].农业现代化研究,2013,34(4):425-430.
相似文献/References:
[1]胡凤霞,唐艳领,刘金,等.辣椒砧木的筛选及其耐盐性研究[J].北方园艺,2013,37(04):24.
[2]陈 潇,盛萍萍,刘润进,等.西瓜与辣椒间作体系接种AM真菌对连作西瓜植株[J].北方园艺,2014,38(12):6.
CHEN Xiao,SHENG Ping-ping,LIU Run-jin,et al.Effect of Intercropping System of Pepper-Watermelon Crops Inoculating Arbuscular Mycorrhizal Fungus on Growth and Defence Enzymes Activity of the Continuous Cropping Watermelon[J].Northern Horticulture,2014,38(21):6.
[3]张婷玉,林 多,杨延杰.辣椒根系分泌物的收集方法研究[J].北方园艺,2014,38(12):14.
ZHANG Ting-yu,LIN Duo,YANG Yan-jie.Study on Collection Method of Root Exudates on Pepper[J].Northern Horticulture,2014,38(21):14.
[4]叶 林,李春江,张光弟,等.不同育苗穴数、基质配比和施肥量对温室辣椒幼苗生长及其秧苗质量的影响[J].北方园艺,2014,38(13):50.
YE Lin,LI Chun-jiang,ZHANG Guang-di,et al.Effects of Different Seedling Number of Holes,Substrates and Fertilization on the Growth and Quality of Greenhouse Pepper Seedlings[J].Northern Horticulture,2014,38(21):50.
[5]郑强卿,陈奇凌,李 铭,等.滴灌条件下骏枣根系分布特征及根际土壤水分变化研究[J].北方园艺,2013,37(22):177.
ZHENG Qiang-qing,CHEN Qi-ling,LI Ming,et al.Study on Root Distribution Characteristics and Changes of Rhizosphere Soil Moisture Under Drip Irrigation of Junzao[J].Northern Horticulture,2013,37(21):177.
[6]蒙仲举,任晓萌,陈晓燕,等.采煤塌陷对沙柳根系损伤机理研究[J].北方园艺,2014,38(01):66.
MENG Zhong-ju,REN Xiao-meng,CHEN Xiao-yan,et al.Study on Damage Mechanism of Roots of?Salix psammophila?by Mining Subsidence[J].Northern Horticulture,2014,38(21):66.
[7]孔小平,苗增建.等离子体处理辣椒种子对其性状及产量的影响[J].北方园艺,2013,37(13):34.
KONG Xiao-ping,MIAO Zeng-jian.Effect of Plasma Treatment on Characters and Output of Pepper Seeds[J].Northern Horticulture,2013,37(21):34.
[8]高万里.白城地区辣椒产业发展对策研究[J].北方园艺,2014,38(04):159.
GAO Wan-li.Study on the Development Countermeasure of Pepper Industry in Baicheng Area[J].Northern Horticulture,2014,38(21):159.
[9]岳振平.不同种植密度对早春大棚辣椒产量和产值的影响[J].北方园艺,2014,38(05):51.
YUE Zhen-ping.Effect of Different Planting Densty on Fruit Yield and Output Value of Pepper in Early Spring[J].Northern Horticulture,2014,38(21):51.
[10]郭亚华,谢立波,王雪,等.辣椒经地面模拟诱变后的RAPD鉴定[J].北方园艺,2014,38(05):95.
GUO Ya-hua,XIE Li-bo,WANG Xue,et al.The RAPD Detection of Capsicum annuum L. After Ground Simulation[J].Northern Horticulture,2014,38(21):95.
[11]马存金,任士伟,胡兆平,等.盐胁迫下喷施不同浓度甘露醇对辣椒生长发育的影响[J].北方园艺,2016,40(09):11.[doi:10.11937/bfyy.201609003]
MA Cunjin,REN Shiwei,HU Zhaoping,et al.Effect of Mannitol Spraying on the Growth and Development of Pepper Under Salt Stress[J].Northern Horticulture,2016,40(21):11.[doi:10.11937/bfyy.201609003]
备注/Memo
第一作者简介:张菊平(1968-),女,河南汝阳人,博士,教授,研究方向为蔬菜种质资源与生物技术。E-mail:jupingzhang@163.com.