首页> 外文期刊>农业科学学报(英文版) >Ca(NO3)2 canopy spraying during physiological fruit drop period has a better influence on the tree character and fruit quality of Newhall navel orange (Citrus sinensis Osbeck)
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Ca(NO3)2 canopy spraying during physiological fruit drop period has a better influence on the tree character and fruit quality of Newhall navel orange (Citrus sinensis Osbeck)

机译:生理落果期喷洒Ca(NO3)2冠层对纽荷脐橙(Citrus sinensis Osbeck)的树型和果实品质有更好的影响

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摘要

This study aimed to provide a theoretical basis for adopting suitable cultivation measures to tackle calcium (Ca) deficiency in citrus leaves. The Newhall navel orange (Citrus sinensis Osbeck) canopy was sprayed with 20.0 mmol L–1 of Ca(NO3)2 during physiological fruit drop period, fruit expanding period, and fruit maturing period on 30, 90, and 210 days after full bloom (DAFB), respectively, and its effects on leaf gas exchange parameters and leaf mineral nutrition and fruit quality were analyzed. The results showed that: (1) The photosynthetic rate (ACO2) at 9:00 a.m. and 16:00 p.m. of fruit expanding period with 30 and 90 DAFB Ca(NO3)2 treatments slightly or significantly improved mainly by decreasing stomatal limitation and nonstomatal limitation, respectively. (2) Compared with control (CK), the Ca concentration in leaves with 30, 90, and 240 DAFB Ca(NO3)2 treatments increased by 127.16, 97.53, and 33.33%, respectively, and the leaf magnesium concentration also increased by more than 32.26%. However, Ca(NO3)2 canopy spraying on 30 DAFB significantly reduced the leaf potassium concentration, by 22.14% compared with CK. (3) Ca(NO3)2 canopy spraying on 30 DAFB decreased the second fruit drop rate by 30.55% and increased the weight per fruit by 25.04%, thus resulting in a significant increase in citrus yield. (4) Spraying Ca(NO3) on 30 DAFB mainly affected the metabolism of titratable acid (TA) to improve the maturity of citrus fruits. Whilst it improved the external quality and the coloring of citrus fruit significantly. Therefore, Ca(NO3)2 canopy spraying during physiological fruit drop period has a better influence on the tree character and fruit quality of Newhall navel orange (Citrus sinensis Osbeck).
机译:本研究旨在为采取适当的栽培措施解决柑桔叶片钙(Ca)缺乏提供理论依据。在盛花后的30、90和210天,在生理性落果期,果实膨大期和果实成熟期,向Newhall脐橙(Citrus sinensis Osbeck)冠层喷洒20.0 mmol L–1的Ca(NO3)2。分别分析了DAFB及其对叶片气体交换参数,叶片矿质营养和果实品质的影响。结果表明:(1)上午9:00和下午16:00的光合速率(ACO2)。分别通过减少气孔限制和非气孔限制,分别用30和90种DAFB Ca(NO3)2处理对果实膨大期的影响有所改善。 (2)与对照(CK)相比,30、90和240 DAFB Ca(NO3)2处理的叶片中的Ca浓度分别增加127.16%,97.53和33.33%,并且叶片镁浓度也增加更多比32.26%。但是,在30 DAFB上喷洒Ca(NO3)2冠层显着降低了叶片钾浓度,与CK相比降低了22.14%。 (3)在30 DAFB上喷洒Ca(NO3)2冠层使第二次落果率降低了30.5%,并使每只果实的重量增加了25.04%,从而大大提高了柑橘的产量。 (4)在30 DAFB上喷洒Ca(NO3)主要影响可滴定酸(TA)的代谢,从而改善柑橘类水果的成熟度。同时,它可以显着改善柑桔的外观和色泽。因此,在生理落果期喷洒Ca(NO3)2冠层对纽荷脐橙(Citrus sinensis Osbeck)的树型和果实品质有更好的影响。

著录项

  • 来源
    《农业科学学报(英文版)》 |2017年第7期|1513-1519|共7页
  • 作者单位

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

    Economic Crop Technology Promotion Station, Chongqing 400700, P.R.China;

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

    National Engineering Research Center for Citrus Technology/Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing 400712, P.R.China;

  • 收录信息 中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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  • 入库时间 2022-08-18 00:23:58
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