Abstract
In this experiment, Huangguogan in Shimian County was selected as the experimental material, and the effects of different treatments on the fruit quality of Huangguogan were studied by mulching treatments with black film, straw, horticultural cloth and river sand. The results of this study showed that the application of chelated iron to the roots under different mulching materials could significantly improve the fruit quality, and the application of chelated iron to the roots under different mulching materials had different effects on fruit quality. The river sand mulching treatment had the highest single fruit weight, vertical and horizontal diameters, while CK had the lowest one. The four mulching treatments all increased the contents of total soluble solids, soluble sugar and sucrose. The river sand mulching treatment had the highest contents, which were 13.96%, 13.09 and 6.93 g.100 mL-1, respectively. There were significant differences in the titratable acid, vitamins C and sugar-acid ratio between the different mulching treatments, and the river sand mulching treatment had the highest effect. In general, the river sand mulching treatment had the best effect on promoting fruit quality, and plastic film mulching treatment had the worst effect.
Highlights
Citrus is a commercially important genus of the family Rutaceae and widely cultivated fruit crop in the world [1]
* Corresponding author: Zhihui Wang@ wangzhihui318@126.com quality, this study focused on using Huangguogan as the experimental sample to carry out cultivation experiments with different mulching materials, excepting to provide a scientific reference for the selection of the best mulching material in the production of Huangguogan
Shallow application of different mulching materials near the roots of Huangguogan tree can significantly decrease the soil pH (Table 2), but there was no significant difference between different mulching treatments
Summary
Citrus is a commercially important genus of the family Rutaceae and widely cultivated fruit crop in the world [1]. Huangguogan was a hybrid variety of Rutaceae Citrus family It originated from Shimian County, Ya’an City, Sichuan Province, and was a local late ripening characteristic fruit. In recent years, mulching materials such as green grass, straw, and plastic film have been widely used in the research of orchard ground water conservation and mulching technology. Plastic film mulching can stabilize soil temperature, improve soil microenvironment and physical and chemical properties and orchard microclimate environment, at the same time increase soil enzyme activity and fertility levels, fruit yield and quality, and reduce field water evaporation. Mulching the black film during the fruit tree growing season can effectively reduce the ground temperature, maintain soil moisture for a longer time, improve water use efficiency and leaf photosynthetic capacity, and inhibit weed growth [5]. Quality, this study focused on using Huangguogan as the experimental sample to carry out cultivation experiments with different mulching materials, excepting to provide a scientific reference for the selection of the best mulching material in the production of Huangguogan
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