| 邹养军,李嘉瑞,魏钦平,王小伟.根系分区灌水对苹果水分状况及生长的影响[J].干旱地区农业研究,2005,(2):16~20 |
| 根系分区灌水对苹果水分状况及生长的影响 |
| Effects of partitioned root irrigation on water and growth of apple trees |
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| DOI：10.7606/j.issn.1000-7601.2005.02.04 |
| 中文关键词: 苹果 根系分区灌水 叶水势 气孔阻力 生长 |
| 英文关键词:partitioned root irrigation water potential stomatal resistance growth |
| 基金项目:北京市科委重大项目(H030730050130)； 北京市农委项目(20030112) |
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| 中文摘要: |
| 以2年生分根盆栽皇家嘎拉(RoyalGala)苹果为试材,通过全部根系、3/4、2/4、1/4根系体积灌水、全部根系不灌水5种处理研究了根系分区灌水对苹果叶水势、气孔阻力以及枝叶生长变化的影响。结果表明,3/4、2/4、1/4根系体积灌水在植株叶水势变化不明显时气孔阻力增大,新梢和叶片生长同时受到抑制,并且根系干旱的体积愈大,抑制作用愈强。 |
| 英文摘要: |
| Using two-year pot apple trees of Royal Gala with their roots partitioned, An experiment consisting of five treatments of root irrigation, irrigating the whole root system, three fourths of the root system, two fourths of the root system, and one fourth of the root system and no irrigating of the root system, were conducted to study the effects of partitioned root irrigation on water potential, stomata resistance and shoot and leaf growth. The results showed that where three fourths, two fourths and one fourth of the root system were irrigated and if the leaf water potential insignificantly varied, and the stomatal resistance increased and the growth inhibition of young shoots took place. In addition, the bigger the non-irrigation size became, the stronger the inhibition became. |
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