不同光照地区对马铃薯花青素含量及品质的影响

Effects of Light on Anthocyanin Content and Quality of Potato in Different Natural Lighting Areas

【目的】研究不同光照地区对马铃薯花青素含量及品质的影响。【方法】采用实地调查,统一繁育种薯,并在盆周山地、平坝浅丘、盆地平原设3个不同光照试验点,种植‘黑美人’、‘川芋彩1号’和‘蓉芋紫5号’等3个不同基因型马铃薯品种,测定其花青素含量和主要品质指标。【结果】小金县(海拔3000 m)繁育的紫色马铃薯品种‘黑美人’生产种薯,在金堂县(海拔452 m)种植后,商品薯的花青素含量降低11.62%~33.66%;而马铃薯品种‘川芋彩1号’同一批原种分别在小金县和新都区(海拔472 m)种植,所繁育的生产种薯块颜色差异极显著。不同生产季节影响马铃薯花青素含量,将在光照条件较好的春马铃薯季收获的‘黑美人’和‘蓉紫芋5号’原种,在光照条件较差的秋马铃薯季播种,收获的生产种花青素含量分别降低34.24%和30.48%。【结论】不同光照地区影响秋作紫色马铃薯花青素含量,盆周山地强光照区(北川试点)收获的‘黑美人’和‘蓉紫芋5号’生产种,花青素含量显著高于成都平原弱光照区(游仙试点和温江试点)。

【Objective】The present study was conducted to study effects of light on anthocyanin content and quality of different potato cultivars in different natural lighting areas.【Method】On the base of field survey and seed tuber propagation of same source,a field experiment was conducted using three different genotype potato varieties such as‘Heimeiren＇,‘Chuanyucai1 ＇and ‘Rongziyu 5 ＇which were planted in mountainous area（ Beichuan county）,shallow hill area（ Youxian district）,and basin plain area（ Wenjiang district） in Sichuan. 【Result】When the production seed potato of‘Heimeiren＇that be breed in Xiaojin（ 3000 m altitude） planting in Jintang（ 452 m altitude）,the anthocyanin containment of commercial potato was decreased by 11. 62 %-33. 66 %; nevertheless,the difference of tuber color of production seed potato was extremely significant when the same resource of stock seed potato planting in Xiaojin and Xindu（ 472 m altitude）. The production season affects anthocyanin content of purple potato. Under the condition of the stock seed potato of‘Heimeiren＇and‘Rongziyu 5＇harvested from better light condition area in spring potato season planting in poor light condition area in autumn potato season,the anthocyanin content of tuber potato was dicreased 34. 24 % and 30. 48 %,respectively. 【Conclusion】The anthocyanin content of tuber potato cultivar‘Heimeiren＇and‘Rongziyu 5＇harvested from strong light area in mountainous area（ Beichuan county） was significantly higher than that from weak light area in Chengdu plain（ Youxian and Wenjiang）.