Development of rape fllower bud, especially that of auxiliary bud, in the districts with deep snow

Abstract

Auxiliary bud at 1∼3 node : These buds did not develop to reach the stage of flower bud differentiation. Auxiliary bud at 4∼15 mode : Stage of flower bud differentiation, Des 10; stage of sepal differentiation, Jan.20. Auxiliary bud at 16∼19 node : Stage of flower bud differentiation, Nov.20; stage of sepal and stamen differentiation, Jan.20. Auxiliary bud at 20∼24 node : Stage of flower bud differentiation, Nov.20; stage where floral parts increase in size, Mar.30. Auxiliary bud at 25∼30 node : Stage of flower bud differentiation, Nov.20; stage where floral parts increase in size, Mar.30. Auxiliary bud at 31∼32 node : Stage of carpel differentiation, Jan.20; stage where floral parts increase in size, Mar.30. Auxiliary bud at 33∼36 node : Stage of sepal and stamen differentiation, Jan.20; stage where floral parts increase in size, Mar.30. Auxiliary bud at 37∼38 node : Stage of sepal differentiation, Jan.20; stage where floral parts increase in size, Mar.30. Auxiliary bud at 39∼40 node : Stage of flower bud differentiation, Jan.20; stage where floral parts increase in size, Mar.30.