不同水分条件下保水剂对黄瓜根系和叶片生理特征的影响
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S642.2

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国家自然科学基金项目“保水剂—土壤多相体系中团聚体形成及水分传导的互作机理”(41601226)


Effects of Super-absorbent Polymers on Physiological Properties of Cucumber Roots and Leaves Under Different Water Conditions
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    摘要:

    [目的] 研究不同土壤干旱生境中保水剂对黄瓜根系和叶片生理特征的影响,探讨其生长效应与土壤水分的内在联系,为保水剂的合理施用和农田科学灌溉等提供一定的技术参考。[方法] 利用盆栽模拟试验,通过定量灌水,系统研究在3种不同的土壤水分条件下,保水剂对黄瓜根际水分、根系形态特征、叶绿素荧光参数和叶片气孔性状等生理特性的影响。[结果] ①不同水分条件下,保水剂处理的黄瓜根系生长受到明显抑制。与对照相比,保水剂处理组在土壤含水量为田间持水量70%(FC2)和55%(FC3)时的总根长、平均根系直径、总根体积、根表面积和根干重均显著降低,分别降低了3.4%,24.2%,62.1%,41.0%和51.6%以上。②随着干旱胁迫的加剧,保水剂处理叶片的有效光合效率(Fv'/Fm')和实际量子产量〔Y (Ⅱ)〕较对照出现先升后降的变化趋势,非光化学淬灭(NPQ)则呈相反的变化;尤其在FC2和FC3处理时,保水剂处理促使黄瓜叶片的光化学淬灭(qP)较对照分别降低了5.5%和9.1%。③与保水剂相比,土壤水分条件对黄瓜叶片气孔开张比和气孔开张度的影响更大。[结论] 土壤水分状况是决定保水剂能否缓解作物干旱胁迫的重要因素之一。土壤含水量为田间持水量的70%和55%时,保水剂反而会加重干旱胁迫对黄瓜根系生长和叶绿素荧光特性的不利影响。

    Abstract:

    [Objective] The effects of super-absorbent polymers (SAPs) on physiological properties of cucumber roots and leaves under different drought conditions were studied in order to clarify the internal relationships between plant growth and soil water conditions with SAP applications. [Methods] A pot experiment with varying irrigation amounts was conducted to study the effects of SAPs on physiological properties of cucumber rhizosphere moisture, root morphology, leave chlorophyll fluorescence parameters, and stomatal characteristics were measured under three different water conditions. [Results] ① The growth of cucumber roots was significantly inhibited by the SAP treatments. Compared with the control, total root length, average root diameter, total root volume, root surface area, and root dry weight of SAP treatments were significantly reduced by 3.4%, 24.2%, 62.1%, 41.0%, and 51.6%, respectively, when soil water content was 70% (FC2) and 55%(FC3) of field capacity. ③ Effective photosynthetic efficiency (Fv'/Fm') and actual quantum yield 〔Y(Ⅱ)〕 with SAP treatments initially increased and then decreased with increasing drought stress, while non-photochemical quenching (NPQ) showed the opposite change. Especially with FC2 and FC3, the photochemical quenching (qP) values of cucumber leaves were significantly reduced by 5.5% and 9.1%, respectively, compared with the control. ③ The effects of soil water on open stomata number, total stomatal ratio, and stomatal opening of cucumber leaves were greater than the effects of SAPs. [Conclusion] Soil water content was one of the important factors determining whether SAPs can alleviate drought stress of plants. When soil water content was 70% and 55% of field capacity, SAPs aggravated the negative effects of drought stress on cucumber root growth and chlorophyll fluorescence characteristics.

    参考文献
    [1] 党宏斌,却晓娥,冯金朝,等.土壤水分对黄土区苹果园土壤—植物—大气连续体(SPAC)中水势梯度的影响[J].应用生态学报,2020,31(3):829-836.
    [2] 黄占斌,孙朋成,钟建,等.高分子保水剂在土壤水肥保持和污染治理中的应用进展[J].农业工程学报,2016,32(1):125-131.
    [3] 王方玲,周亚茹,张明月,等.干旱胁迫下TS-PAA保水剂对雪茄烟生长发育和光合特性的影响[J/OL].中国农业科技导报,1-11[2021-11-15]. http://doi.org/10/13304/j.nykjdb,2020.0970.
    [4] 周客,王利书,程东娟,等.保水剂对土壤水分运移和水吸力变化的影响[J].节水灌溉,2021(2):52-57.
    [5] 李霞,张丹,青会,等.保水剂结合豌豆翻压对季节性干旱区新垦植烟土壤的改良效应及烤烟品质的影响[J].水土保持学报,2019,33(1):288-300.
    [6] Yang Yonghui, Wu Jicheng, Zhao Shiwei, et al. Effects of long-term super absorbent polymer and organic manure on soil structure and organic carbon distribution in different soil layers [J]. Soil and Tillage Research, 2021,206:104781.
    [7] 裴雪霞,党建友,张定一,等.休闲期耕作方式和施用保水剂对旱地小麦产量及水分利用率的影响[J].核农学报,2021,35(5):1243-1251.
    [8] 白文波,沈会有,刘红杰,等.淀粉基赋钾保水剂的制备表征与保水释钾性能优化[J].农业工程学报,2019,35(23):151-160.
    [9] Liu Yan, Zhu Yongfeng, Wang Yongsheng, et al. Synthesis and application of eco-friendly superabsorbent composites based on xanthan gum and semi-coke [J]. International Journal of Biological Macromolecules, 2021,179:230-238.
    [10] 吴阳生,王天野,王呈玉,等.施用保水剂对半干旱地区玉米生长发育的影响[J].华北农学报,2019,34(S1):64-68.
    [11] 刘伟,钟奇,罗玲.不同灌溉量配施保水剂对芒果园土壤水分及果实的影响[J].西南农业学报,2019,32(10):2378-2382.
    [12] 杨永辉,吴普特,武继承,等.复水前后冬小麦光合生理特征对保水剂用量的响应[J].农业机械学报,2011,42(7):116-123.
    [13] 杜太生,康绍忠,魏华.保水剂在节水农业中的应用研究现状与展望[J].农业现代化研究,2000,21(5):317-320.
    [14] 宫丽丹,倪书邦,贺熙勇,等.干旱胁迫下保水剂对澳洲坚果生长及水分特征参数的影响[J].热带农业科技,2017,40(1):17-19.
    [15] 侯贤清,李荣,何文寿,等.保水剂对旱作马铃薯产量及水分利用效率的影响[J].核农学报,2018,32(5):1016-1022.
    [16] 包刚,王潮炎,徐丽君,等.农林保水剂对毛竹幼苗生长及叶片光合特性的影响[J].福建农林大学学报(自然科学版),2013,42(4):385-390.
    [17] 杨青华,高尔明,马新明.不同土壤类型对玉米根系干重变化及其分布的影响[J].土壤通报,2001,32(5):238-240.
    [18] 陈奕凝,谭文文,彭冶,等.不同方法对海棠叶表皮的观察对比[J].安徽农业科学,2020,48(20):127-130,139.
    [19] 王凯丽,高彦利,李姗,等.短期干旱胁迫下棉花气孔表现及光合特征研究[J].中国生态农业学报,2019,27(6):901-907.
    [20] 环境保护部.HJ613-2011土壤干物质和水分的测定重量法[S].北京:中国环境科学出版社,2011.
    [21] 师生波,李天才,李妙,等.土壤干旱和强光对高山嵩草叶片PSⅡ反应中心非光化学淬灭的交互影响分析[J].植物生理学报,2015,51(10):1678-1686.
    [22] 梁欢,韦宝,陈静,等.基于叶绿素荧光参数的紫花苜蓿种质苗期抗旱性评价[J].草地学报,2020,28(1):45-55.
    [23] 王玉珏,付秋实,郑禾,等.干旱胁迫对黄瓜幼苗生长、光合生理及气孔特征的影响[J].中国农业大学学报,2010,15(5):12-18.
    [24] 国家质量监督检验检疫总局, 中国国家标准化管理委员会.GB/T20481-2017气象干旱等级[S].北京:中国环境科学出版社,2017:2.
    [25] 黄海霞,杨琦琦,崔鹏,等.裸果木幼苗根系形态和生理特征对水分胁迫的响应[J].草业学报,2021,30(1):197-207.
    [26] Boguszewska-Mańkowska Dominika, Zarzyńska Krystyna, Nosalewicz Artur. Drought differentially affects root system size and architecture of potato cultivars with differing drought tolerance [J]. American Journal of Potato Research, 2020,97,54-62.
    [27] 张馨月,王寅,陈健,等.水分和氮素对玉米苗期生长、根系形态及分布的影响[J].中国农业科学,2019,52(1):34-44.
    [28] 杨永辉,武继承,吴普特,等.保水剂用量对小麦不同生育期根系生理特性的影响[J].应用生态学报,2011,22(1):73-78.
    [29] Arbona V, Iglesias D J, Jacas J, et al. Hydrogel substrate amendment alleviates drought effects on young citrus plants [J]. Plant and Soil, 2005,270:73-82.
    [30] 安东升,严程明,陈炫,等.季节性干旱下农艺节水措施对甘蔗生长和产量的影响[J].热带作物学报,2021,42(4):991-999.
    [31] 吕国华,蒋树芳,白文波,等.聚丙烯酸钠的释水特征及对土壤物理参数的影响[J].干旱地区农业研究,2017,35(2):172-175.
    [32] 赵丽英,邓西平,山仑,等.不同水分处理下冬小麦旗叶叶绿素荧光参数的变化研究[J].中国生态农业学报,2007,15(1):63-66.
    [33] 史胜青,袁玉欣,杨敏生,等.水分胁迫对4种苗木叶绿素荧光的光化学淬灭和非光化学淬灭的影响[J].林业科学,2004,40(1):168-173.
    [34] 李佳,刘立云,李艳,等.保水剂对干旱胁迫槟榔幼苗生理特征的影响[J].南方农业学报,2018,49(1):104-108.
    [35] 李中华,刘进平,谷海磊,等.干旱胁迫对植物气孔特性影响研究进展[J].亚热带植物科学,2016,45(2):195-200.
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纪冰祎,赵驰鹏,吴玥,宋吉青,白文波.不同水分条件下保水剂对黄瓜根系和叶片生理特征的影响[J].水土保持通报,2022,42(2):114-121

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  • 收稿日期:2021-07-12
  • 最后修改日期:2021-10-27
  • 在线发布日期: 2022-05-26