| 郭海涛,邹志荣,杨兴娟,周贺芳.调亏灌溉对番茄生理指标、产量品质及水分生产效率的影响[J].干旱地区农业研究,2007,(3):133~137 |
| 调亏灌溉对番茄生理指标、产量品质及水分生产效率的影响 |
| Effects of regulated deficit irrigation （RDI ） on physiological indexes yield quality and WUE of tomato |
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| DOI：10.7606/j.issn.1000-7601.2007.03.28 |
| 中文关键词: 调亏灌溉 番茄 补偿效应 水分利用效率 |
| 英文关键词:regulated deficit irrigation(RDI) tomato compensate domino effect WUE |
| 基金项目:陕西省科技攻关项目(2001BA503B-10) |
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| 中文摘要: |
| 在大棚条件下进行了番茄调亏灌溉试验研究。共设有T1,T2,T3,T4,T5五个处理,其中T1,T2分别在开花座果期做亏缺处理,田间持水量分别为55%~65%,45%~55%;T3,T4分别在果实膨大期做亏缺处理,田间持水量分别为65%~75%,55%~65%;T5为常规灌溉,两个时期的土壤含水量分别为65%~75%,75%~85%。结果表明,水分亏缺显著抑制番茄体内蛋白合成,根活力下降;脯氨酸、丙二醛含量有不同程度的上升。开花座果期以处理T1、果实膨大期以处理T3为最优设计。处理T1的总产量比对照T5提高3.8%,T3比T5减少5.3%;T1和T3的单果重分别比T5减少了5.8%、16.9%,而水分利用效率分别提高了19.9%、32.6%。T1、T3两个处理的果实品质明显改善:可溶性总糖、Vc和有机酸含量均与T5差异显著。处理T1的前期产量比T5增加了3.8%,说明复水后有补偿效应,有利于向果实运转与分配,促进生殖生长。 |
| 英文摘要: |
| Under the condition of plastic tunnel,tomato regulated deficit irrigation(RDI) experiment was carried out.There are five treatments: T1,T2,T3,T4,T5.T1 and T2 are treated during bloom and fruit setting stage,their soil moisture are 55%～65%(θf),45%～55%(θf),seperately.T3 and T4 are treated during fruit-development(FD) stage.Their soil moisture are 65%～75%(θf),55%～65%(θf).And T5 is a formal irrigation treatment,whose soil moisture are 65%～75%(θf),75%～85%(θf),during two stages.Results showed that under the condition of deficit irrigation,the protein content and root activity were restrained significantly.The content of Proline and MDA rose on different levels.During 1st and 2nd periods,treatment 1 and 3 were the best designs.The total yield of T1 increased by 3.8%,but T3 declined by 5.3%.Single fruit were declined 5.8% and 16.9%,respectively.The WUE increased by 19.9% and 32.6%.And the content of soluble sugar,Vc and organic acid were higher than T5.Compensate effect appeared after deficit irrigation,because the yield of treatment T1 was 3.8% higher than T5. |
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