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›› 1994, Vol. 30 ›› Issue (1): 79-82.

• 研究简报 • 上一篇    下一篇

水分胁迫对早实核桃生长和结果的影响

谷瑞升 郗荣庭 刘万生   

  1. 河北农业大学园艺系,保定071000;辽宁经济林研究所,大连116031
  • 收稿日期:1992-10-31 修回日期:1900-01-01 出版日期:1994-01-25 发布日期:1994-01-25

EFFECT OF WATER STRESS ON THE GROWTH AND FRUITAGE OF PRECOCIOUS WALNUTS

Gu Ruisheng,Xi Rongting,Liu Wansheng   

  1. Dept.of Horticulture Hebei Agricultural University Baoding 071001;Liaoning Research Institute of Economic Forestry Dalian 116031
  • Received:1992-10-31 Revised:1900-01-01 Online:1994-01-25 Published:1994-01-25

关键词: 早实核桃, 水分胁迫, 生长和结果

Abstract: This test was carried out with three-years-old precocious walnut seedlings(Juglans regia)cultivated in soil pots.The water contents of pot soil were weighed to 100%,75%, 50%, 30% of Field Capacity (FC) respectively from two to six weeks after the pistillate flower bloom (the sib of May).After this period, the seedlings were watered nomally till fruit ripeness. The results showed that:leaf,shoot and nut growth were all best in 75% FC treatment.Water stress(50%FC,30%FC)and waterlogging(100%FC)reduced the leaf water potential and net photosythesis rate and obviously inhibited the growth of leaf,shoot and nut.This inhibition was not made up by watering or draining after this period.The leaf structure was mainly influenced by water stress.Drought resistance of walnuts was also discussed in this paper.

Key words: Precocious walnuts, Water stress, Growth and fruitage