Abstract:

In order to clarify the sowing date on the various fertility indicators and the development of law in of ‘Luomai 22’, the further development of its high yield potential, and to accelerate the demonstration and popularization of new varieties of wheat grain filling and tillering and panicle formation. Logistic equation during grain filling on different wheat varieties fitting. The results showed that, the delayed sowing, planting ‘Luomai 22’ October 13th filling time longer than 11 months, and October 23th, va2 maximum filling rate, so the filling stage was grain weight increased rapidly from the longest duration of the filling stage on October 13th. ‘Luomai 22’ mainly rely on the main stem and a second one on tillering and panicle with delayed sowing, the total number of tillers and ears gradually reduced. Therefore, the optimum sowing ‘Luomai 22’ around October 13th, measured of ineffective tillers in the control before winter in order to achieve a high yield.