KHSO3对多雨少日照气候下红富士光合色素含量和果实产量质量的影响

摘要

Under raininess and poor sunshine , the ten-year-old Red Fuji apple trees at vigorous fruit -producing stage were treated by spraying 5 mmol/L KHSO3 solution.The results showed that: as compared with those in the control group , the average value of chlorophyll a , chlorophyll b and carotenoid Car content in the leaves in the spray treatment increased by 25.97%, 9.48%and 3.60%respectively, the fruit monthly average increment and group yield increased by 8.77% and 8.84% respectively, the content of soluble solid, total sugar and vitamin C in the fruits increased by 10.94%, 17.70%and 10.44%respectively, and the titratable acid content in the fruits decreased by 17.24%.The fruit chroma in the spray treatment was superior to that in the control group.The above results indicated that spraying KHSO 3 contributed to improving the photosynthetic pigment content , fruit incre-ment, yield and quality .%在多雨少日照气候条件下，以10年生盛果红富士苹果树为试材，进行了外源喷施5 mmol/L的KHSO3溶液的试验。结果表明：KHSO3处理后，叶片的叶绿素a、叶绿素b和类胡萝卜素（ Car）的含量平均值分别比对照高25．97％、9．48％和3．60％；果实月均增量和组产量分别比对照高8．77％和8．84％；果实的可溶性固形物、总糖及维生素C含量分别比对照高10．94％、17．70％和10．44％，可滴定酸含量则比对照低17．24％，且果品色度也优于对照。因此，KHSO3处理有助于提高光合色素含量，增加果实生长量及产量，提升果品的质量。