The Correlation of Peel Browning Spot with Nutrition of Ca, Mg, K in Huangguan Pears

doi:10.3321/j.issn:1000-7091.2006.03.029

Abstract

Abstract: After the analysis of the Ca,Mg,K content in Huangguan pears grew at various orchards,the results showed that in comparison with the normal ones,the fruits with peel browning spot had the lower Ca content and the value of Ca/Mg,Ca/K and Ca/(Mg+K),being bigger difference in skin than that in flesh.The fruit-bagging reduced the Ca content,Ca/Mg and Ca/K of skin and flesh,increased the K content of skin,and had not significant effect on Mg content.There were relatively higher Ca content and Ca/Mg,Ca/K and Ca/(Mg+K) in skin of the smaller size fruits(<300 g per fruit weight),which showed less browning spots,and the contrary was found in extra big fruits(>500 g per fruit weight).Thus,these results suggested that the lower Ca content,and Ca/Mg,Ca/K and Ca/(Mg+K) in fruit peel might be the important cause of skin browning.

Key words: Huangguan pear, Ca, Mg, K, Browning spot

CLC Number:

S661.2

GUAN Jun-feng, JI Hua, FENG Yun-xiao, LI Li-mei, SUN Yu-long, SI Jian-li. The Correlation of Peel Browning Spot with Nutrition of Ca, Mg, K in Huangguan Pears[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(3): 125-128. doi: 10.3321/j.issn:1000-7091.2006.03.029.

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