Abstract:

To screen high-quality，high-yielding，and stress-resistant rapeseed new varieties suitable for cultivation in Hangzhou and surrounding areas， a demonstration and evaluation trial of 18 new rapeseed varieties was conducted in the Hangzhou Raw Seed Growing Farm from 2023 to 2024. The growth period，growth traits，resistance，and yield traits were systematically investigated and comprehensively analyzed. The results showed that in terms of yield，Zheyou 51 achieved the highest yield of 208.86 kg per 667 m2，followed by Ningza 1858，Ningza 2010，and Jinyouza 9，all exceeding 160 kg per 667 m2 with yields of 166.97 kg，166.90 kg，and 162.70 kg，respectively，demonstrating excellent yield potential；Zhongyouza 41 yielded the lowest at only 109.61 kg per 667 m2. In terms of lodging resistance，7 varieties including Jinyouza 9 and Ganyouza 8 showed "straight" in the field，with strong lodging resistance；4 varieties including Huiyouza 097 showed "falling"，with poor lodging resistance. The incidence of sclerotinia and vira diseases in all tested varieties was 0，indicating outstanding disease resistance. Overall，Zheyou 51，Ningza 1858，and Ningza 2010 performed excellently in yield and stress resistance，and are recommended as priority varieties for rapeseed cultivation in Hangzhou and surrounding areas；Jinyouza 9，with its strong lodging resistance，can serve as an alternative variety for areas where lodging resistance is particularly required.

Key words: rapeseed, new variety, demonstration and evaluation, high-yield performance, stress resistance, Hangzhou region