羽衣甘蓝新品系自交不亲和性及主要园艺性状的评价

在上海地区越冬露地栽培条件下,对6个观赏型羽衣甘蓝新品系的自交不亲和性及其主要园艺性状进行观察评价。结果表明:6个羽衣甘蓝新品系间的自交不亲和性存在明显差异,OK-2、OK-5和OK-6的自交亲和性较高,而OK-1、OK-3和OK-4的自交不亲和性较高。尤其OK-4的花期自交亲和指数仅为1.87,而蕾期自交亲和指数高达35.14,是羽衣甘蓝优良自交不亲和新品系;其次,OK-1的花期自交亲和指数为2.82,自交不亲和性也较突出。6个新品系的株型、叶型及叶色各具特色,且抗寒性和综合抗病性较强,均能在上海地区安全越冬。其中,OK-1和OK-4的综合抗逆性最强,叶色也最为鲜艳独特,是综合农艺性状优良的羽衣甘蓝新品系。

Evaluation of Self-incompatibility and Main Horticultural Traits of New Strains of Ornamental Kale

Self-incompatibility and main horticultural traits of 6 new strains of ornamental kale (Brassica oleracea var. acephala f.tricolor Hort.) were evaluated,which were cultivated in open field through winter in Shanghai. The 6 new strains showed different self-incompatibility. The new strains OK-2,OK-5 and OK-6 had higher self-compatibility,while strains OK-1,OK-3 and OK-4 had higher self-incompatibility. In particular,the self-incompatibility of OK-4 was only 1.87 at flowering phase while higher self-compatibility of 35.14 at bud stage. The results meant OK-4 is a good new strain with high self-incompatibility. Secondly,the self-compatibility of OK-1 at flowering phase was 2.82. The 6 new strains showed different plant types,leaf types and flower colors. The 6 strains also showed strong cold tolerance and disease resistance,and they could be cultivated in open field through winter in Shanghai area. Compared with other strains,OK-1 and OK-4 are new ornamental kale strains with strongest comprehensive resistance,most unique leaf colors,and good comprehensive agronomic traits.