J Integr Plant Biol. ›› 1963, Vol. 11 ›› Issue (2): -.

• Research Articles •    

Effects of Sowing Date on the Development of Winter Wheat

C.H. Hsia   

Abstract: 1. Difference in sowing date influences the development of winter wheat. The earlier the sowing, the earlier is the completion of the thermostage. The length of the thermostage of early sowing wheat is longer than that of the later sowing wheat. The length of photostage is affected in the opposite manner. 2. Differentiation of the growing cones of early sowing wheat is faster than the later sowing wheat, but the differences became smaller as growth proceeded. 3. Early sowing produces different effects on the development stages and the differentiation of the growing cone. Thus, winter wheat might complete the photostage while the growing cones were in the double ridge stage. 4. A discussion on the relation of the differentiation of growing cones and the development stages, also on the influence of sowing date to the yields were presented.

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