...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Horticulturae >Effect of Regulated Deficit Irrigation on Vegetative Growth, Fruiting, Stomatal Conductance and Water Use Efficiency in 'Nules' Clementine under Arid Conditions of the Souss Valley of Morocco
【24h】

Effect of Regulated Deficit Irrigation on Vegetative Growth, Fruiting, Stomatal Conductance and Water Use Efficiency in 'Nules' Clementine under Arid Conditions of the Souss Valley of Morocco

机译：干旱条件下摩洛哥苏斯河谷调亏灌溉对'Nules'Clementine的营养生长，结果，气孔导度和水分利用效率的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Souss valley of Morocco is its major citrus producing area but is subjected to water scarcity, resulting in negative effects on citrus yield and quality. This research aims at contributing to the development of irrigation strategies for citrus which resulted in water economy and that they do not affect negatively fruit yield or quality. Threeregulated deficit irrigation (RDI) treatments were tested on 5-year old 'Nules' Clementine trees {Citrus reticulata) grafted on Citrus macrophylla. Water supply was done daily according to tree phenological stage and local experience which was then compared to crop water needs calculated based on base evapotranspiration (ETo). From 1 Oct. 2011 to 30 Jan. 2012, all trees received the same amount of water (129mm). The trial started on 1 Feb. 2012 just prior to bud break with a supply of 0.9 to 1.8 mm/day, depending on treatment. The dosage increased with increasing ambiance temperature to reach supply duration of 2h 40 min during hot summer days (supplying 2.7, 3.5 and 2.1 mm/day respectively for TO, Tl and T2). Total water supply was 627 mm for TO (= 84% ETc), 752 mm for Tl (= 106% ETc), 512 mm for treatment T2 (= 68% ETc), applied during the trial period corresponding to 2011-12 cropping season. Results indicated that the local irrigation strategy did not match up with crop water needs. During the crop cycle studied here temperatures were very high reaching 48°C and relative humidity as low as 10%, particularly during fruit set and fruit growth. Stressed trees had more flowers, reduced vegetative growth, lower fruit set, lower final fruit size and yield. Stomata conductance decreased with water deficit while tree water use efficiency increased.
机译：摩洛哥的苏斯河谷是其主要的柑橘产区，但水资源匮乏，对柑橘的产量和品质造成负面影响。这项研究旨在促进柑桔的灌溉策略的发展，从而导致节水，并且不会对水果的产量或质量产生负面影响。对嫁接在柑桔上的5年生'Nules'柑桔树（Citrus reticulata）进行了三种调节的亏水灌溉（RDI）处理。每天根据树木物候阶段和当地经验进行供水，然后将其与根据基本蒸散量（ETo）计算的作物需水量进行比较。从2011年10月1日到2012年1月30日，所有树木都接受了相同量的水（129毫米）。该试验于2012年2月1日开始，即芽破裂之前，每天的供应量为0.9至1.8毫米，具体取决于处理方式。剂量随着环境温度的升高而增加，以在炎热的夏季达到2h 40分钟的供应持续时间（TO，T1和T2分别供应2.7、3.5和2.1 mm / day）。 TO的总供水量为627毫米（ETc = 84％），T1的总供水为752 mm（ETc = 106％），处理T2的总供水量为512 mm（ETc = 68％），在与2011-12种植季节相对应的试验期内进行了供水。结果表明，当地的灌溉策略与作物需水量不符。在研究的农作物周期中，温度非常高，达到48°C，相对湿度低至10％，特别是在坐果和果实生长期间。压力大的树木有更多的花，营养生长减少，坐果降低，最终果实的大小和产量降低。气孔导度随水分亏缺而降低，而树木水分利用效率提高。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号