不同栽培条件对马铃薯紫云1号花青素含量影响的研究

Influence of Cultivation Conditions on Anthocyanin Content of Potato Ziyun No.1

彩色马铃薯花青素具有重要的营养价值,但目前栽培技术对花青素含量影响的研究还比较少。本文采用L9(34)正交试验设计,研究了在不同栽培条件下,肥料(P、K)、密度对彩色马铃薯品种紫云1号花青素含量的影响。研究结果表明:在河谷浅丘区果园套作条件下,紫云1号获得花青素含量最多的最优每公顷施肥量为纯P2O5100 kg,最合理密度为50 000株/hm2,KH2PO4喷施浓度2‰;在河谷浅丘区净作条件下,最优每公顷施肥量为纯P2O575 kg,最合理密度为60 000株/hm2,KH2PO4喷施浓度3‰;在深丘低山区净作条件下,最优每公顷施肥量为纯P2O5100 kg,最合理密度为60 000株/hm2,KH2PO4喷施浓度3‰。

Anthocyanin of color potato was important as its nutritional value, but very little research had been conducted on the influence of cultivation techniques on anthocyanin content of potatoes. In this paper, orthogonal experimental design L9（3^4）was used to investigate the effect of fertilizers and planting densities on anthocyanin content of color potatoes In different cultivation conditions. The results showed that to obtain the highest anthocyanin content in Ziyun No. 1, optimal cultivation techniques were as follow ： at the condition of intercropping with orchard in the shallow valley, optimal average per hectare consumption of fertilizer nutrients was pure P2O5 100 kg, the most cost-effective plant density was 50 0130 plants/hm^2 , with 2 ‰ spray concentration of KH2PO4 ; at the condition of individual cropping in the shallow valley, optimal average per hectare consumption of fertilizer nutrients was pure P2 05 75 kg, the most cost-effeetive plant density was 60 000 plants / hm^2 , with a 3‰ spray concentration of KH2 PO4 ; at the condition of individual cropping in deep valley between low mountains areas, optimal average per hectare consumption of fertilizer nutrients was pure P205 100 kg, the most cost-effective plant density was 60 000 plant / hm^2 ,with 3‰ spray concentration of KH2PO4.