日本洋葱品种引种比较研究

Comparison between two introduced Japanese onion cultivars

引进日本洋葱品种 92 1与秀玉丸进行生物学特性、光合速率、光温效应和土壤适应性比较研究 ,结果表明 ,192 1株型紧凑 ,双心鳞茎率低 ,成熟自然倒伏率高 ;秀玉丸株型高而散 ,双心鳞茎率高 ,自然倒伏率低。 2 92 1光合速率上升快 ,早生快发 ;秀玉丸光合速率上升与下降均较慢 ,生长稳健。 3 92 1属早熟品种 ,适宜播种期为 9月 5～ 2 0日 ;秀玉丸属中晚熟品种 ,适宜播种期为10月 5～ 2 0日。 4旱坡地适宜种植 92 1。

Japanese onion cultivars-“921”and Xiuyu were introuced to Fujian Province.The comparison results of biological features,photosythetic rate, light\|temperature efficiency and soil adaptability showed as follows;①Cultivar 921 had a compact plant,lower rate of double\|stem and higher rateof natural falling;Xinyu had a high and loose plant, higher rate of double\|stem and lower rate of natural falling.② The photosynthetic rate of Cultivar 921 rised fastly; that of Xiuyu rised firmly.③Cultivar 921 was property of early maturity and the suitable sowing time was between 5-20,September,Xiuyu was property of late maturity,the suitable sowing time was between 5-20,October.④The dry upland was more suitable for Cultivar 921 and the beachland was more suitable for Xiuyu.