Abstract:

In order to comprehensively evaluate the effect of Chinese chestnut yellow crinkle disease on the quality of chestnut nuts， the related indexes of nut quality of trees were determined， and the effect of the disease on nut quality was analyzed. The results showed that， compared with healthy trees， the contents of trace elements in nut of diseased trees were increased， and the contents of amino acids， total phenols and flavonoids were significantly increased by 24.93%， 20.54% and 36.33%， respectively. The chestnut bracts of diseased trees had long and sof spines， uneven color of nuts， the wrinkled surface and the rough texture. The number of grains per bract， the weight of single bract， the full nut rate and the yield per plant of diseased trees were significantly reduced， among them， the yield per plant was reduced by 96.45% compared with the healthy tree. Above results provided a theoretical basis for scientific evaluation of the effect of Chinese chestnut yellow crinkle disease on nut quality.

Key words: Chinese chestnut, yellow crinkle disease, nutritional quality, commodity quality

摘要：

为综合评价板栗黄化皱缩病对板栗坚果品质的影响，对坚果品质相关指标进行测定，分析该病对坚果品质的影响。结果表明，与健康树相比，病树坚果中的微量元素均有所升高，其中氨基酸、总酚、类黄酮含量分别较健康树显著提高24.93%、20.54%、36.33%；且病树栗苞上的刺束长、软，坚果颜色不均匀、表面褶皱、质地粗糙；单苞粒数、单苞重、饱果率、单株产量均显著降低，其中单株产量较健康植株减少96.45％。以上研究结果为科学评估黄化皱缩病对坚果品质造成的影响提供理论基础。

关键词: 板栗, 黄化皱缩病, 营养品质, 商品品质