|Table of Contents|

Effects of Herbage on Ecological Environment and Photosynthetic Characteristics Fruits Quality of ‘Korla Fragrant Pear’

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年22
Page:
49-59
Research Field:
Publishing date:

Info

Title:
Effects of Herbage on Ecological Environment and Photosynthetic Characteristics Fruits Quality of ‘Korla Fragrant Pear’
Author(s):
CHEN Jiuhong1; 2; MA Jianjiang1; LI Yongfeng1; LU Xiaoyan2; JIANG Yuan1; YE Jiajun3
(1.Agricultural Scientific Institute of Second Division,Xinjiang Production and Construction Corps,Tiemenguan,Xinjiang 841005；2.College of Agriculture,Shihezi University,Shihezi,Xinjiang 832000；3.Forestry Seedling Administration Stations of Twelve Division,Xinjiang Production and Construction Corps,Urumchi,Xinjiang 830013)
Keywords:
inter-row grass covering; ‘Korla Fragrant Pear’; ecological environment; photosynthetic characteristics; fruits quality
PACS:
-
DOI:
10.11937/bfyy.20191171
Abstract:
In order to analysis the effects of inter-row grass covering on ‘Korla Fragrant Pear’ for its orchard environment,photosynthetic characteristics and fruits quality,this research used the method of observation of fixed station.This method made measurement and analysis to microclimate factors,photosynthetic characteristics and fruits quality while the ‘Korla Fragrant Pear’ orchard was treated with different grass species inter-planting.The results showed that,compared to the clean tillage (CK),five grassing treatments have the effects of lowering temperature in summer,while increasing in autumn.Among the five,Trifolium repens L.had the best effects of changing temperature.Different grassing treatments all had the effects of increasing relative air humidity and the Trifolium repens L.still the best choice.Different grassing treatments had the lowering temperature effect on different depth of soil.The effect was weaken with the soil layer′s deepening.In a certain month,the higher temperature,the better soil cooling down effect.Meanwhile,the diurnal variation of the ‘Korla Fragrant Pear’ leaves net photosynthesis rate (Pn) and stomatal conductance (Gs) showed a ‘bimodal curve’ tendency with different grassing treatments,while the diurnal variation of leaves transpiration rate (Tr) showed a unimodal curve tendency,intercellular CO2 concentration (Ci) showed a ‘W’ type tendency and the instant water use efficiency(WUE) showed a ‘W’ type tendency generally.The correlation analysis showed that,the daily mean value of WUE and Pn showed a significant positive correlation (P＜0.05) while WUE and Tr showed a significant negative correlation (P＜0.05).The grey correlative analysis has showed that use Trifolium repens L.in ‘Korla Fragrant Pear’ orchard will get a better comprehensive effect of microclimate than natural grassing.Compared to the clean tillage,natural grassing enhances the fruit diameter and determination of soluble sugar significantly,Medicago sativa L.decreased the content of titratable acid,Lolium perenne L.increased the single fruit weight and content of vitamin C and Trifolium repens L.increases the redness rate and soluble solids.Different grassing treatments could enhance the content of vitamin C and reduce the content of titratable acid.Therefor,in the dense planting ‘Korla Fragrant Pear’ orchard,we could use Trifolium repens L.to increase temperature in summer and reduce temperature in autumn,which is of advantage to the growth of ‘Korla Fragrant Pear’.

References:

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Last Update: 2019-12-11