|Table of Contents|

Effects of Drip Irrigation Frequency and Amount on Growth and Fruit Quality of ‘Huanguan’ Pear(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年20
Page:
46-50
Research Field:
Publishing date:

Info

Title:
Effects of Drip Irrigation Frequency and Amount on Growth and Fruit Quality of ‘Huanguan’ Pear
Author(s):
DUAN PengweiCHENG Fuhou
College of Landscape and Ecological Engineering,Hebei University of Engineering,Handan,Hebei 056001
Keywords:
peardrip irrigation frequencyirrigation volumegrowthquality
PACS:
-
DOI:
10.11937/bfyy.20172184
Abstract:
In order to improve the yield and quality of pear,the field experiment was conducted in the base of modern agriculture demonstration training of Hebei University of Engineering from March to November in 2016 with 4 years old ‘Huangguan’ pear.In the drip irrigation mode,the effects of irrigation frequency(once 10,20,30 days) and amount(20%,40%,60% net evaporation compensation irrigation) on the soil moisture content,the new shoot growth,the photosynthetic index,yield and fruit quality,the distribution and number of absorbing root were studied.The results showed that under the drip irrigation frequency of once 20 days,the soil moisture content,new shoot growth,net photosynthetic rate,transpiration rate,yield and soluble sugar content were higher than these of once 10 or 30 days.The net photosynthetic rate of once 20 days was 6.23% higher than that of once 10 days,and 10.45% higher than that of once 30 days.The transpiration rate of once 20 days was 15.33% higher than that of once 10 days,and 20.56% higher than that of once 30 days.The yield of once 20 days was 18.76% higher than that of once 10 days,and 18.99% higher than that of once 30 days.The soluble sugar contents of once 20 days was 20.70% higher than that of once 10 days,13.46% higher than that of once 30 days,and they were significantly different.Under the 60% net evaporation compensation irrigation processing,the soil water content,net photosynthetic rate,transpiration rate,stomatal conductance,intercellular CO2 concentration,fruit weight were higher than these of 20% and 40% net evaporation compensation irrigation.The photosynthetic indicators were significantly different.The yield of 40% net evaporation compensation irrigation was higher than that of other treatments.In the fruit quality,the soluble sugar,vitamin C,titrable acid contents of 20% net evaporation compensation irrigation was higher than that of other treatments.The soluble sugar content of 20% net evaporation compensation irrigation was 8.57% higher than that of the 40% and 12.92% higher than that of the 60%,and the differences were significant.In summary,the best drip irrigation frequency was once 20 days.40% net evaporation compensation irrigation could ensure both yield and the quality of pear.

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Last Update: 2017-10-31