|Table of Contents|

Effects of Regulated Deficit Irrigation on Twig Water Potential of Korla Fragrant Pear(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年08
Page:
15-20
Research Field:
Publishing date:

Info

Title:
Effects of Regulated Deficit Irrigation on Twig Water Potential of Korla Fragrant Pear
Author(s):
SUN Guili1; 2; 3; LI Wandong1; Yusufu?ABULITIFU1; 3
(1.College of Forestry and Horticulture，Xinjiang Agricultural University，Urumqi,Xinjiang 830052；2.Key Laboratory at Universities of Education Department of Xinjiang Uygur Autonomous Region,Urumqi，Xinjiang 830052；3.Featured Fruit Tree Research Center of Xinjiang Agricultural University，Urumqi，Xinjiang 830052)
Keywords:
Korla pear; twig water potential; regulated deficit irrigation
PACS:
-
DOI:
10.11937/bfyy.201608004
Abstract:
7-year-old Korla pear was used as test materials，different root irrigation method was set，Korla pear water potential and soil moisture at different growth stage were studied.The results showed that the diurnal variation fragrant pear twig water potential of Korla pear showed a ‘V’ type in different growth stages under different irrigation methods，reached the lowest value at noon of one day.The water potential of Korla pear under drought stress was significantly lower than twig water potential of normal irrigation.There were obvious consistency between sticks water potential change and average soil volumetric water content change in different growth period of Korla pear.Twig water potential of Korla pear was generally low，and the water potential difference was large in morning and evening in fruit enlargement stage.Diurnal variation of Korla pear twig water potential was the most gentle in flowering stage，and the twig water potential had no more difference in morning and evening.There was a certain fluctuations about diurnal variation of fragrant pear twig water potential in fruit setting and maturity stage，and the twig water potential had a little difference in morning and evening.Diurnal variation of pear twig water potential fluctuated considerably in fruit enlargement stage under two irrigation methods.The regression analysis was established both fragrant pear twig water potential and soil water content at different growth stages.Without affecting the normal growth conditions，the limits of fragrant pear branch water potential and soil moisture in different growth stages of Korla pear was determined.

References:

 

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Last Update: 2016-06-21