|Table of Contents|

Effects of Dynamic Regulation of Nutrient Solution During Flowering Period on Growth and Development of Tomato

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年20
Page:
1-8
Research Field:
Publishing date:

Info

Title:
Effects of Dynamic Regulation of Nutrient Solution During Flowering Period on Growth and Development of Tomato
Author(s):
YANG Rui1; 2; XU Fan2; GUO Wenzhong2; SU Linhao2; 3; CHEN Fei2; LI Lingzhi1
(1.College of Horticulture，Shanxi Agricultural University，Taigu，Shanxi 030801；2.Intelligent Equipment Technology Research Center，Beijing Academy of Agriculture and Forestry Sciences，Beijing 100097；3.College of Agriculture，Liaocheng University，Liaocheng，Shandong 252000)
Keywords:
tomato; flowering regulation; nutrient solution concentration; dynamic water and fertilizer management; comprehensive evaluation
PACS:
S 641.2
DOI:
10.11937/bfyy.20230722
Abstract:
The tomato variety ‘Harvest (74-560)’ was used as the experimental material，and the nutrient solution concentration was adjusted according to the flowering time of each ear，and the concentration was set to decrease by 20% (H1)，40% (H2) and 60% (H3)，and the concentration of conventional nutrient solution was used as the control (CK).The effects of concentration control on tomato growth，yield and quality were studied,in order to adjust the balance of tomato growth and development and improve the comprehensive benefit of tomato.The results showed that the plant height of tomato treated with H2 was the highest，and the growth rate was the highest at the fourth to fifth ear.Low concentration regulation delayed the SPAD peak，and the SPAD value of H2 treatment reached the maximum before the peak.In terms of yield composition，H1 treatment mainly increased single fruit weight and yield of intermediate fruit，and total yield increased by 17.26%.The yield of H2 treatment was higher in the early stage，but decreased in the middle and late stage due to fewer fruit sets.H3 treatment increased the fruit weight and yield of middle and late fruit.In terms of fruit quality，lycopene content in early fruits was about 1.58-1.92 times of that in middle fruits.The content of vitamin C in middle fruit was better than that in early fruit，and H1 treatment gradually improved.Considering yield and quality，H2 treatment had the best regulation at early flowering，with a relative proximity of 0.769.In the middle stage of fruit flowering，H1 treatment had the regulation，and the relative proximity was 0.998.H3 treatment was recommended for late flowering.The dynamic control of nutrient solution during flowering period was beneficial to regulate the nutrient absorption of tomato so as to achieve balanced management of tomato reproductive growth and nutrient growth.

References:

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Last Update: 2023-11-29