Abstract:

In response to the adjustment of agricultural planting systems and the growing demand for diversified production，increasing the land multiple cropping index is of great significance for ensuring grain and oil security. Therefore，the selection and promotion of early-maturing and short-duration rapeseed varieties have become essential. In this study，10 early-maturing short-duration rapeseed varieties were evaluated using a randomized block design. The experiment was conducted at a designated site under standardized planting conditions，and data on growth period，yield，resistance，and agronomic traits were collected. The results revealed considerable variation among the varieties in terms of phenology，growth period，yield，and resistance traits. For instance，Zheyouzao No.1 exhibited high yield，while Xiangyou 420 had the shortest growth period. This study provides a basis for the selection，promotion，and further improvement of early-maturing short-duration rapeseed varieties，and offering reference value for adapting to adjustments in agricultural cropping systems and ensuring grain and oil security.

Key words: early-maturing short-duration rapeseed, phenotypic performance, variety evaluation, agricultural planting system