施硅提高干湿交替条件下番茄节水性及产量和品质

硅在提高作物抗旱性中具有重要作用。干湿交替灌溉是通过对植物根系施加干旱处理,来诱导自身的干旱调节潜能的一种节水增产技术。关于节水灌溉影响作物生理特性的研究,结论不尽相同。干湿交替的灌溉方式是否适应于番茄栽培,且在该灌溉技术下施硅对番茄产量品质有何影响,鲜见报道。为探讨干湿交替条件下施硅对番茄的影响,采用潮汐式灌溉系统模拟干湿交替的灌溉方式,研究了干湿交替条件下硅对番茄植株硅质量分数、植株生长、果实产量及品质的影响。结果表明,营养液加硅使番茄根、茎、叶、果的硅质量分数分别提高494%、444%、246%、631%。在番茄幼苗期至开花坐果期,采用干湿交替的灌溉方式利于控制长势、培育壮苗,但结果前期...

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Bibliographic Details
Published in农业工程学报 Vol. 33; no. 22; pp. 127 - 134
Main Author 曹逼力 张志焕 徐坤
Format Journal Article
LanguageChinese
Published 山东农业大学园艺科学与工程学院,泰安,271018 2017
Subjects
产量
品质
干湿交替
果实
灌溉
硅酸盐
furits
产量
灌溉
irrigation
yield
硅酸盐
silicates
dry and wet alternate conditions
品质
果实
干湿交替
quality
Online AccessGet full text
ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2017.22.016

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Summary:硅在提高作物抗旱性中具有重要作用。干湿交替灌溉是通过对植物根系施加干旱处理,来诱导自身的干旱调节潜能的一种节水增产技术。关于节水灌溉影响作物生理特性的研究,结论不尽相同。干湿交替的灌溉方式是否适应于番茄栽培,且在该灌溉技术下施硅对番茄产量品质有何影响,鲜见报道。为探讨干湿交替条件下施硅对番茄的影响,采用潮汐式灌溉系统模拟干湿交替的灌溉方式,研究了干湿交替条件下硅对番茄植株硅质量分数、植株生长、果实产量及品质的影响。结果表明,营养液加硅使番茄根、茎、叶、果的硅质量分数分别提高494%、444%、246%、631%。在番茄幼苗期至开花坐果期,采用干湿交替的灌溉方式利于控制长势、培育壮苗,但结果前期至结果后期,尤其盛果期,则不宜采用干湿交替的灌溉方式。干湿交替造成了番茄的严重减产及番茄红素质量分数、维生素C质量分数、可滴定酸质量分数的下降,但显著提高番茄果实的可溶性蛋白质量分数、游离氨基酸质量分数、可溶性固形物质量分数、可溶性糖质量分数、可滴定酸质量分数、果实硬度、糖酸比,尤其糖酸比提高了30%,而施硅可缓解干湿交替对番茄生长发育后期果实产量和品质的不利影响。总之,干湿交替下施硅,在促进番茄稳产优质协调形成的前提下,可节水23%。该研究探讨了多变低水条件下硅的调控效应,丰富了硅提高植物抗旱性的理论内容,研究结果对实现合理节水并提高番茄商品率具有重要的意义。
Bibliography:11-2047/S
silicates; irrigation; furits; dry and wet alternate conditions; yield; quality
Silicon plays an important role in improving crop drought resistance. The irrigation of alternate wetting and drying condition is a method that can achieve the goal of saving water resources and increasing production, through the inducement of the drought regulation potential by exposure of the plant roots to drought stress. Signal feedback control in the root zone can be performed adequately under alternate wetting and drying condition, and therefore physiological water conservation can be achieved. However, the conclusions on the effects of water-saving irrigation on the physiological characteristics of crops are different. With regard to the research about applicability of alternative irrigation method on tomato （Solanum lycopersicum L.） cultivation. In order to investigate the impacts of application of exogenous silicon on tomato under alternate wetting and drying condition, the effects of silicon on the silicon mass f
ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2017.22.016