花椰菜新品种‘夏花6号’

A New Variety of Cauliflower ‘Xiahua 6’

花椰菜‘夏花6号’是利用自交不亲和系育成的耐热、早熟一代杂交新品种，适宜夏秋及高山反季节栽培，成熟期50～55d，优质、丰产。经2001～2003年生产区域试验，较同类早熟品种增产20．5％。花球半圆形、洁白，结构半松偏紧型，花梗绿色，平均单球质量0．50～0．85kg，种植密度45000～49500株／hm^2，产量30～45t／hm^2，产值高。品质细嫩、风味佳；抗黑腐病、软腐病。

‘Xiahua 6＇ is a heat-resistant and rareripe new hybrid cauliflower bred by the self-incompatibility. It is suitable to be cultivated in both summer and autumn. With the mature period ranging from 50 to 55 days. Reginal cultivation experiment had been take from 2001 to 2003. The yield is increased 20. 5% comparing with the same rareripe variety and ‘Xiahua 6＇ had better quality. The fruit with the partly loose structure is semicircle and white but the stalk is green. The average mass of single fruit is about 0. 50 to 0. 85 kg. So we can harvest 30 to 45 t/hm^2 if the plant density is 45 000 - 49 500 per hectare. It tastes well and has strong resistance to some diseases.