ZHAO Di, WANG Zhenhua, ZHANG Jinzhu, et al. Effects of Different Irrigation Methods and Irrigation Amount on Physiological Growth and Yield of Processing Tomato in Northern Xinjiang[J]. 2018, 32(6): 175-185.
DOI:
ZHAO Di, WANG Zhenhua, ZHANG Jinzhu, et al. Effects of Different Irrigation Methods and Irrigation Amount on Physiological Growth and Yield of Processing Tomato in Northern Xinjiang[J]. 2018, 32(6): 175-185. DOI: 10.13870/j.cnki.stbcxb.2018.06.026.
Effects of Different Irrigation Methods and Irrigation Amount on Physiological Growth and Yield of Processing Tomato in Northern Xinjiang
In order to explore the effects of different irrigation methods and irrigation amounts on the growth characteristics
physiological characteristics
yield
and irrigation water use efficiency of processing tomato under drip irrigation
the irrigation combination method suitable for processing tomato cultivation in arid regions of Xinjiang was sought to optimize the management of tomato planting in drip irrigation in arid areas. Pot test experiments were carried out on three irrigation methods(APRI
FPRI and CI)with three irrigation quotas(conventional irrigation level:1 060 mm
moderate water deficit:810 mm and severe water deficit:560 mm
the irrigation quota of APRI and FPRI are two thirds as CI) coupled with drip irrigation to explore plant height
stem diameter
leaf area index
photosynthesis
fluorescence
yield
irrigation water use efficiency and optimal irrigation combination model were studied. The results showed that the variation of plant height in different growth stages of processing tomato was:CW1 > AW1 > CW2 > AW2 > FW1 > CW3 > AW3 > FW2 > FW3 (average)
and the change of stem diameter and leaf area index was:AW1 > AW2 > CW1 > CW2 > AW3 > FW1 > CW3 > FW2 > FW3 (average)
growth potential and maximum growth rate of plant height
stem diameter and leaf area index were:AW1 > CW1 > CW2 > AW2 > FW1 > CW3 > AW3 > FW2 > FW3; the interaction between irrigation method and irrigation amount had significant effects on Pn and Tr
in each growth period (P<0.01). Under the same irrigation mode
Pn and Tr increased with the increase of irrigation amount. The maximum is reached at AW1. At W1 level
Pn and Tr change to:APRI > CI > FPRI (average value). At W2 and W3 levels
Pn and Tr change to:CI > APRI > FPRI (average); The effect of irrigation method on Fv/Fm and Fv/F0 of functional leaves of processing tomato was significant (P<0.01)
and the effect on qp was significant (P<0.05). The amount of irrigation on functional leaves of processing tomato on Fv/Fm and Fv/F0 was not significant (P > 0.05)
and the effect on qp and NPQ in flowering and expansion period was extremely significant (P<0.01). The interaction between irrigation method and irrigation amount had a significant effect on the fluorescence parameters of processing tomato in each growth period (P<0.01). Among them
the maximum yield (Y) appeared in AW1 treatment
which was 149 155 kg/hm2; the minimum appeared in FW3 treatment
which was 57 060 kg/hm2
a relative increase of 2.61 times. The research suggests that the full irrigation condition of alternate root-zoon irrigation can be used as a suitable irrigation combination model in this area. This study can provide a scientific basis for efficient water-saving production of processing tomato in drip irrigation in Xinjiang.
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