海南冬种马铃薯品种比较试验

为筛选适合海南冬季种植的马铃薯新品种，促进海南马铃薯产业的发展。试验对引进的5个马铃薯品种进行田间比较试验，调查各参试品种的物候期、农艺性状、产量及抗病性等。试验结果表明：‘紫洋’和‘红云’2个品种的综合性状表现较好，其产量分别为17778.15 kg/hm2和20086.95 kg/hm2，分别较对照减产1.98%和增产10.75%。其余品种表现一般，还需继续试验观察。‘紫洋’和‘红云’2个紫色马铃薯品种在品质、产量、抗病性和生育期等方面均表现较好，适合海南冬季种植，可进行示范推广。

The Comparative Trial of Winter Potato in Hainan

To screen suitable varieties of potato for winter planting and promote development of potato in Hainan, new potato varieties were introduced and selected. Comparative field experiment were carried out using five potato varieties, and their phenophase, agronomic characters, yield and disease resistance were investigated. The results indicate that ‘Hongyun’ and ‘Ziyang’showed good comprehensive traits, and their yield was recorded as 17778.15 and 20086.95 kg/hm2 respectively, which decreased by 1.98% and increased by 10.75% over control. The other varieties with common performance may be tested further under field conditions.‘Hongyun’ and ‘Ziyang’ which performed better in quality, yield, disease resistance and growth period were appropriate for winter planting and may be extended for demonstration in Hainan.