The effect of different concentrations of Hoagland nutrient solution on the growth and development of blueberry young trees

doi:10.14088/j.cnki.issn0439-8114.2023.06.032

Abstract

Abstract: One year old saplings of the blueberry variety ‘Star’ （Vaccinium spp.） were used as experimental materials. The plants were treated with water （control treatment）, 50% Hoagland nutrient solution （A treatment）, 100% Hoagland nutrient solution （B treatment）, and 150% Hoagland nutrient solution （C treatment） for 60 days. The effects of different concentrations of Hoagland nutrient solution on plant growth, chlorophyll content, and antioxidant system were measured.The results showed that under treatment A, B, and C, the plant height and stem diameter of blueberry saplings were higher than those of the control. On the 15th day, treatment C had the highest plant height and stem diameter, while on the 45th and 60th days, treatment A had the highest plant height and stem diameter, and treatment B had the highest crown width;on the 60th day, the chlorophyll a content, chlorophyll b content, and total chlorophyll content of treatment A, B, and C were higher than those of the control treatment;the production rate of superoxide anion showed an overall trend of first increasing and then decreasing with time, and the H₂O₂ content showed an overall upward trend with time. On the 60th day, the superoxide anion production rate, H₂O₂ content, and MDA content of treatment A were all the lowest;the SOD enzyme activity showed an overall trend of first increasing and then decreasing with time, reaching its highest value on the 30th day;the content of soluble protein and AsA showed an overall upward trend during the experimental period, while the content of GSH showed a first decrease and then an upward trend.

Key words: blueberry （Vaccinium spp.）, Hoagland nutrient solution, nutritional growth, antioxidant system

CLC Number:

S663.9

YANG Hai-yan, WANG Hua-sheng, WU Wen-long, LYU Lian-fei, FAN Su-fan, LI Wei-lin. The effect of different concentrations of Hoagland nutrient solution on the growth and development of blueberry young trees[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(6): 175-180.

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