盐碱地食叶草细根对干旱复水后的响应
收稿日期: 2021-04-06
修回日期: 2021-06-24
网络出版日期: 2022-01-24
基金资助
国家重点研发计划(2016YFC0501406);石河子大学国际科技合作推进计划项目(GJHZ201906)
Response of Rumex hanus by. roots to drought after rehydration
Received date: 2021-04-06
Revised date: 2021-06-24
Online published: 2022-01-24
盐生植物灌溉周期合理制定是对提高干旱区水资源利用效率的关键因素。以食叶草(Rumex hanus by.)细根(d≤1 mm)为研究对象,采用干旱-复水方法,测定复水后不同时间食叶草细根总根长、根尖数、平均根直径,研究根系增长率、死亡量、根寿命和周转率的变化特征,为制定最佳灌溉周期提供参考依据。结果表明:根长和根尖数在复水后7 d增长幅度最大,10~15 d增长幅度减弱。细根增长率(RER)在复水后第4 d达到最大,第10 d出现显著下降(P<0.05),在不同土层(0~20 cm和20~40 cm)和根系直径(0~0.5 mm和0.5~1.0 mm)之间均有极显著差异(P<0.001)。细根净生产量(NRP)与RER二者均呈现先增长后降低的规律。复水后15 d,0~20 cm土层和20~40 cm土层的细根存活率分别为3.6%和16.9%,0.5~1.0 mm直径的细根存活率高于0~0.5 mm细根。研究表明复水后细根中位寿命在8.09~13.83 d,20~40 cm土层细根寿命显著高于0~20 cm土层(P<0.05)。食叶草细根通过增加20~40 cm土层中0.5~1.0 mm细根应对和适应干旱及复水,从而达到生存目的。综合考虑食叶草生长和农业水资源供给情况,在夏季盐碱地食叶草最佳灌溉周期为10 d。
郑旭,杨志鑫,郝东梅,王润润,李鲁华,张凤华,王家平 . 盐碱地食叶草细根对干旱复水后的响应[J]. 干旱区研究, 2022 , 39(1) : 240 -249 . DOI: 10.13866/j.azr.2022.01.23
The rational formulation of irrigation cycle of halophytes is the key factor to improve the utilization efficiency of water resources in arid areas. Taking the fine root (d≤1 mm) of leafy grass (Rumex hanus by.) as the research object, the total root length, root tip number and average root diameter at different times after re-watering were measured by drought and re-watering method, and the changing characteristics of root growth rate, mortality, root life span and turnover rate were studied, so as to provide reference basis for the establishment of the best irrigation cycle. The results showed that the root length and the number of root tips increased the most at 7 days after re-watering, and decreased at 10 to 15 days after re-watering. The fine root growth rate (RER) reached the maximum on the 4th day after re-watering, and decreased significantly on the 10th day (P<0.001). There were significant differences among different soil layers (0-20 cm and 20-40 cm) and root diameter (0-0.5 mm and 0.5-1.0 mm) (P<0.001). Both fine root net production (NRP) and RER increased at first and then decreased. 15 days after re-watering, the fine root survival rate of fine root in the 20 cm soil layer and 20-40 cm soil layer was 3.6% and 16.9% respectively. The fine root survival rate of 0.5-1.0 mm diameter fine root was higher than that of 0-0.5 mm fine root. The results showed that after re-watering, the life span of fine roots in the soil layer of 20 cm was significantly higher than that in the 0-20 cm soil layer at 8.09~13.83 days (P<0.05). The fine root of leafy grass can achieve the purpose of survival by increasing the fine root of 0.5-1.0 mm in 20-40 cm soil layer to cope with and adapt to drought and re-watering. Considering the growth of leaf-eating grass and the supply of agricultural water resources, the best irrigation period of leaf-eating grass in saline-alkali land in summer is 10 days.
Key words: saline soil; fine root; daily growth rate; mortality; turnover rate; median life
[1] | Zhao B, Ma B L, Hu Y, et al. Source-sink adjustment: A mechanistic understanding of the timing and severity of drought stress on photosynjournal and grain yields of two contrasting oat (Avena sativa L. ) genotypes[J]. Journal of Plant Growth Regulation, 2021, 40(5): 263-276. |
[2] | Malota M, Mchenga J. Matching soil salinization and cropping systems in communally managed irrigation schemes[J]. Applied Water Science, 2018, 8(1): 14-16. |
[3] | 龚子同, 陈鸿昭, 杨帆, 等. 中亚干旱区土壤地球化学和环境[J]. 干旱区研究, 2017, 34(1): 1-9. |
[3] | [Gong Zitong, Chen Hongzhao, Yang Fan, et al. Pedogeochemistry and environment of aridisol regions in Central Asia[J]. Arid Zone Research, 2017, 34(1): 1-9. ] |
[4] | 厉广辉, 万勇善, 刘风珍, 等. 不同抗旱性花生品种根系形态及生理特性[J]. 作物学报, 2014, 40(3): 531-541. |
[4] | [Li Guanghui, Wan Yongshan, Liu Fengzhen, et al. Morphological and physiological traits of poot in different drought resistant peanut cultivars[J]. Acta Agronomica Sinica, 2014, 40(3): 531-541. ] |
[5] | 赵丽萍, 刘家勇, 赵培方, 等. 水分胁迫对甘蔗根系及地上部生长的影响[J]. 湖南农业大学学报(自然科学版), 2019, 45(1): 10-15. |
[5] | [Zhao Liping, Liu Jiayong, Zhao Peifang, et al. The impact of water stress on the growth of roots and above-ground parts in sugarcane[J]. Journal of Hunan Agricultural University (Natural Sciences), 2019, 45(1): 10-15. ] |
[6] | Daoqian C, Shiwen W, Beibei C, et al. Genotypic variation in growth and physiological response to drought stress and re-watering reveals the critical role of recovery in drought adaptation in maize seedlings[J]. Frontiers in Plant Science, 2015, 6(6): 124-133. |
[7] | Costa C, Filho A, Crusciol C, et al. Intensive annual crop production and root development in a tropical acid soil under long-term no-till and soil-amendment management[J]. Crop & Pasture Science, 2018, 69(5): 488-506. |
[8] | 阳维宗, 马骁, 杨文, 等. 若尔盖草本沼泽生物量季节动态、根系周转及碳氮磷储量[J]. 生态学杂志, 2021, 40(5): 1285-1292. |
[8] | [Yang Weizong, Ma Xiao, Yang Wen, et al. Seasonal dynamics of biomass, root turnover, and carbon, nitrogen and phosphorus storages of Zoige alpine marsh[J]. Chinese Journal of Ecology, 2021, 40(5): 1285-1292. ] |
[9] | Germon A, Cardinael R, Prieto I, et al. Unexpected phenology and lifespan of shallow and deep fine roots of walnut trees grown in a silvoarable Mediterranean agroforestry system[J]. Plant and Soil, 2016, 401(1): 409-426. |
[10] | Pregitzer K S, King J S, Burton A J, et al. Responses of tree fine roots to temperature[J]. New Phytologist, 2010, 147(1): 105-115. |
[11] | Pregitzer K S, Deforest J L, Burton A J, et al. Fine root architecture of nine north American trees[J]. Ecological Monographs, 2002, 72(2): 293-309. |
[12] | Mccormack M, Dickie I, Eissenstat D, et al. Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes[J]. New Phytologist, 2015, 207(3): 505-518. |
[13] | Zadworny M, Eissenstat D M. Contrasting the morphology, anatomy and fungal colonization of new pioneer and fibrous roots[J]. New Phytologist, 2011, 190(1): 213-221. |
[14] | Liu Y, Wang G, Yu K, et al. A new method to optimize root order classification based on the diameter interval of fine root[J]. Scientific Reports, 2018, 8(1): 2960-2978. |
[15] | Li M, Wang Y, Adeli A, et al. Effects of application methods and urea rates on ammonia volatilization, yields and fine root biomass of alfalfa[J]. Field Crops Research, 2018, 218(8): 115-125. |
[16] | 陈爱萍, 隋晓青, 王玉祥, 等. 干旱胁迫及复水对伊犁绢蒿幼苗生长及生理特性的影响[J]. 草地学报, 2020, 28(5): 48-57. |
[16] | [Chen Aiping, Sui Xiaoqing, Wang Yuxiang, et al. Effects of drought and re-watering on growth and physiological characteristics of Seriphidium transiliense seedlings[J]. Acta Agrestia Sinica, 2020, 28(5): 48-57. ] |
[17] | 王晓雪, 李越, 张斌, 等. 干旱胁迫及复水对燕麦根系生长及生理特性的影响[J]. 草地学报, 2020, 28(6): 103-111. |
[17] | [Wang Xiaoxue, Li Yue, Zhang Bin, et al. Effects of drought stress and rehydration on root growth and physiological characteristics of oats[J]. Acta Agrestia Sinica, 2020, 28(6): 103-111. ] |
[18] | Wang Cunguo, Brunner Ivano, Guo Wei, et al. Effects of long-term water reduction and nitrogen addition on fine roots and fungal hyphae in a mixed mature Pinus koraiensis forest[J]. Plant and Soil, 2021, 16(4): 1-13. |
[19] | 张萌, 刘宁, 王雪剑, 等. 减少降水和草本竞争对白桦幼苗细根形态和生理特征的影响[J]. 西北林学院学报, 2021, 36(4): 73-79. |
[19] | [Zhang Meng, Liu Ning, Wang Xuejian, et al. Effects of reduced precipitation and herb competition on the morphological and physiological characteristics of the fine roots of Betula platyphylla seedlings[J]. Journal of Northwest Forestry University, 2021, 36(4): 73-79. ] |
[20] | 楼敏涵, 曲雪峰, 张丽婧, 等. 新食品原料食叶草的安全性评估[J]. 食品安全质量检测学报, 2021, 12(10): 3919-3926. |
[20] | [Lou Minhan, Qu Xuefeng, Zhang Lijing, et al. Safety evaluation of edible dock as a new food raw material[J]. Journal of Food Safety & Quality, 2021, 12(10): 3919-3926. ] |
[21] | 周昕, 黄秋连, 王健, 等. 添加乳酸菌剂和糖蜜对不同含水量食叶草青贮发酵品质及体外干物质消失率的影响[J]. 动物营养学报, 2021, 33(3): 1594-1606. |
[21] | [Zhou Xin, Huang Qiulian, Wang Jian, et al. Effects of adding lactic acid bacteria and molasses on fermentation quality and in vitro dry matter disappearance rate of Rumex hanus by. silage with different moisture Contents[J]. Chinese Journal of Animal Nutrition, 2021, 33(3): 1594-1606. ] |
[22] | Zhang C M, Shi S L, Wang B W, et al. Physiological and biochemical changes in different drought-tolerant alfalfa (Medicago sativa L. ) varieties under PEG-induced drought stress[J]. Acta Physiologiae Plantarum, 2018, 40(2): 25-40. |
[23] | Wang W J, He H S, Zu Y G, et al. Addition of HPMA affects seed germination, plant growth and properties of heavy saline-alkali soil in northeastern China: Comparison with other agents and determination of the mechanism[J]. Plant and Soil, 2011, 339(1): 177-191. |
[24] | 魏清江, 冯芳芳, 马张正, 等. 干旱复水对柑橘幼苗叶片光合、叶绿素荧光和根系构型的影响[J]. 应用生态学报, 2018, 29(8): 2485-2492. |
[24] | [Wei Jiangqing, Feng Fangfang, Ma Zhangzheng, et al. Effects of drought and rewatering on leaf photosynjournal, chlorophyll fluorescence, and root architecture of citrus seedlings[J]. Chinese Journal of Applied Ecology, 2018, 29(8): 2485-2492. ] |
[25] | 郝树荣, 郭相平, 王为木, 等. 水稻分蘖期水分胁迫及复水对根系生长的影响[J]. 干旱地区农业研究, 2007, 25(1): 149-152. |
[25] | [Hao Shurong, Guo Xiangping, Wang Weimu, et al. Effects of water stress in tillering stage and re-watering on rice root growth[J]. Agricultural Research in the Arid Areas, 2007, 25(1): 149-152. ] |
[26] | Chen W L, Jin M G, Ferre T P A, et al. Spatial distribution of soil moisture, soil salinity, and root density beneath a cotton field under mulched drip irrigation with brackish and fresh water[J]. Field Crops Research, 2018, 215(7): 207-221. |
[27] | Zheng J, Fan J L, Zhang F C, et al. Evapotranspiration partitioning and water productivity of rainfed maize under contrasting mulching conditions in Northwest China[J]. Agricultural Water Management, 2021, 243(3): 473-488. |
[28] | Mao Z, Bonis M L, Rey H, et al. Which processes drive fine root elongation in a natural mountain forest ecosystem?[J]. Plant Ecology & Diversity, 2013, 6(2): 231-243. |
[29] | 廖逸宁, 郭素娟, 王芳芳, 等. 有机-无机肥配施对板栗园土壤肥力及根系功能性状的影响[J]. 南京林业大学学报(自然科学版), 2021, 45(5): 84-92. |
[29] | [Liao Yining, Guo Sujuan, Wang Fangfang, et al. Effects of combined application of organic and inorganic fertilizers on soil fertility and root functional traits in chestnut orchards[J]. Journal of Nanjing Forestry University (Natural Sciences Edition), 2021, 45(5): 84-92. ] |
[30] | Beyer F, Hertel D, Jung K, et al. Competition effects on fine root survival of Fagus sylvatica and Fraxinus excelsior[J]. Forest Ecology & Management, 2013, 302(2): 14-22. |
[31] | Zheng J, Fan J L, Zhang F C, et al. Evapotranspiration partitioning and water productivity of rainfed maize under contrasting mulching conditions in Northwest China[J]. Agricultural Water Management, 2021, 243(3): 473-488. |
[32] | 吴伊波, 车荣晓, 马双, 等. 高寒草甸植被细根生产和周转的比较研究[J]. 生态学报, 2014, 34(13): 3529-3537. |
[32] | [Wu Yibo, Che Rongxiao, Ma Shuang, et al. Estimation of root production and turnover in an alpine meadow: Comparison of three measurement methods[J]. Acta Ecologica Sinica, 2014, 34(13): 3529-3537. ] |
[33] | Richter D deB, Billings S A. ‘One physical system’: Tansley’s ecosystem as Earth’s critical zone[J]. The New Phytologist, 2015, 27(3): 242-257. |
[34] | 赵佳宁, 梁韵, 柳莹, 等. 森林生态系统细根周转规律及影响因素[J]. 植物学报, 2020, 55(3): 308-317. |
[34] | [Zhao Jianing, Liang Yun, Liu Ying, et al. Patterns and influence factors of fine root turnover in forest ecosystems[J]. Bulletin of Botany, 2020, 55(3): 308-317. ] |
[35] | Prieto I, Roumet C, Cardinael R, et al. Root functional parameters along a land-use gradient: Evidence of a community-level economics spectrum[J]. Journal of Ecology, 2015, 103(2): 361-373. |
[36] | 倪惠菁, 苏文会, 范少辉, 等. 养分输入方式对森林生态系统土壤养分循环的影响研究进展[J]. 生态学杂志, 2019, 38(3): 863-872. |
[36] | [Ni Huijing, Su Wenhui, Fan Shaohui, et al. Responses of forest soil nutrient cycling to nutrient input modes: A review[J]. Chinese Journal of Ecology, 2019, 38(3): 863-872. ] |
[37] | 胡琪娟, 盛茂银, 殷婕, 等. 西南喀斯特石漠化环境适生植物构树细根、根际土壤化学计量特征[J]. 植物生态学报, 2020, 44(9): 962-972. |
[37] | [Hu Qijuan, Sheng Maoyin, Yin Jie, et al. Stoichiometric characteristics of fine roots and rhizosphere soil of Broussonetia papyrifera adapted to the karst rocky desertification environment in southwest China[J]. Chinese Journal of Plant Ecology, 2020, 44(9): 962-972. ] |
[38] | 王群, 赵向阳, 刘东尧, 等. 淹水弱光复合胁迫对夏玉米根形态结构、生理特性和产量的影响[J]. 中国农业科学, 2020, 53(17): 3479-3495. |
[38] | [Wang Qun, Zhao Xiangyang, Liu Dongyao, et al. Root morphological, physiological traits and yield of maize under waterlogging and low light stress[J]. Scientia Agricultura Sinica, 2020, 53(17): 3479-3495. ] |
[39] | 田小霞, 毛培春, 郭强, 等. 镉胁迫对马蔺根系形态及部分生理指标的影响[J]. 西北植物学报, 2019, 39(6): 1105-1113. |
[39] | [Tian Xiaoxia, Mao Peichun, Guo Qiang, et al. Effect of cadmium on root morphology and partial physiological indexes of Iris lacteal var. chinensis[J]. Acta Botanica Boreali-Occidentalia Sinica, 2019, 39(6): 1105-1113. ] |
[40] | 周永姣, 王满堂, 王钊颖, 等. 亚热带59个常绿与落叶树种不同根序细根养分及化学计量特征[J]. 生态学报, 2020, 40(14): 4975-4984. |
[40] | [Zhou Yongjiao, Wang Mantang, Wang Zhaoying, et al. Nutrient and ecological stoichiometry of different root order fine roots of 59 evergreen and deciduous tree species in subtropical zone[J]. Acta Ecologica Sinica, 2020, 40(14): 4975-4984. ] |
[41] | Keel S G, Campbell C D, Mn H, et al. Allocation of carbon to fine root compounds and their residence times in a boreal forest depend on root size class and season[J]. New Phytologist, 2012, 194(4): 972-981. |
[42] | Çerçioğlu M, Anderson S H, Udawatta R P, et al. Effect of cover crop management on soil hydraulic properties[J]. Geoderma, 2019, 343(3): 247-253. |
[43] | Blanco C H, Shaprio C, Jasa P, et al. No-till and carbon stocks: Is deep soil sampling necessary? Insights from long-term experiments[J]. Soil and Tillage Research, 2021, 206(6): 883-893. |
[44] | 张坤, 刁明, 景博, 等. 不同灌水量与灌水频率对加工番茄根系生长和产量的影响[J]. 排灌机械工程学报, 2020, 38(1): 83-89. |
[44] | [Zhang Kun, Diao Ming, Jing Bo, et al. Influence of irrigation quota and frequency on root growth and yield of processing tomato[J]. Journal of Drainage and Irrigation Machinery Engineering, 2020, 38(1): 83-89. ] |
[45] | 杨冬艳, 冯海萍, 赵云霞, 等. 日光温室秋冬茬黄瓜结果期灌溉频率对产量及根系分布特征的影响[J]. 节水灌溉, 2020, 298(6): 25-28. |
[45] | [Yang Dongyan, Feng Haiping, Zhao Yunxia, et al. Effects of irrigation frequency on yield and root distribution characteristics of greenhouse autumn-winter planted cucumber[J]. Water Saving Irrigation, 2020, 298(6): 25-28. ] |
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