Study on the Dynamics and Diagnosis of Boron Nutrient in Apple Trees During Vegetative Growth Period
Peng Futian
Wei Shaochong
Jiang Yuanmao
Gu Manru
Abstract：Under field condition,the changing trend of the total boron amount in the new growth organs of the trees of ev.Meiguihong/Malus hupehensis,wee different:Total boron amount in spur leaf was relatively stable;but the value in long shoot leaf and cortex descended in the season early stage,then went up and descended again later;concerning the fruit,the total boron amount went on reducing as fruit developing,and the most descendent was found in a month after flowering.Total boron amounts in fruit and long shoot cortex of boron deficient trees showed significantly reduced,but the total boron amounts in the other positions were not identical with the boron deficiency symptoms. Total boron amount in long shoot cortex after fruit picking were positively correlated with the values in young fruit in the next year.Total boron amounts in long shoot cortex descended more in leaf and fruit under drought in autumn.The long shoot cortex can be chosen as target organ of diagnosis of boron nutrient in apple trees.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 136-139 )