Abstract:

To screen high-yield and superior-quality rapeseed varieties suitable for promotion in Jinhua region under late sowing conditions，this study investigated the yield performance and agronomic trait differences among 11 rapeseed varieties. The results showed that the total growth period of the 11 varieties under late sowing ranged from 172 to 178 days. Significant （p0.05） yield variations were observed among the varieties，with the top three varieties being Yueyou Huaye 15，Yueyou 1510，and Yueyou 1401. Yueyou Huaye 15 exhibited the highest number of effective pods per plant，while Yueyou 1102 had the largest thousand-seed weight. Principal component analysis of 10 parameters，including agronomic and yield-related traits，revealed that Yueyou 1203 ranked first in comprehensive score. Under current production conditions，Yueyou Huaye 15，Yueyou 1510，and Yueyou 1401 were recommended for cultivation to achieve high yield. Additionally，Yueyou 1203，with its high comprehensive score，also demonstrated potential for widespread application.

Key words: late sowing condition, rapeseed, variety, growth period, yield, agronomic trait, number of effective pods per plant