Analysis On Tiller Growing Into Ears And High Yield Structure Of Wheat Variety Lankao-906

Through treatments and studies for two years continuously this paper gets main results as follows:1. Wheat variety Lankao 906 has great tillers ability, but the tillers has lower rate of its growing into ears ,this mainly because low position tillers grow into ears easily and high position tillers growing into ears difficultly . 9O6 demands high conditions for tillers growing into ears.It is difficult to improve the rate that tillers become into ears.Correspondently,increasing the basical seedling number can evidently increasing the number of ears .So we should take the measures of increasing biscal seedlings number in cultivational practices in order to reach the objective of increasing the number of ears ,.2. Lankao 9O6 is a typical variety that main bud takes advantages.Its amount of soluble sugar is higher than the tillers.The number for each plant growing into ears is one .This is the cause that we should take the way of solo stem cultivation to realize the objective of high yield,not the way by tillers growing into ears to advance the yield.3. Lankao 906 is a kind of variety that leaves settingup .Its total ears number per ha and leaves area index are higher than wheat variety Wen 6.When the yield is above 11250Kg/ha,its yield structure is that ears is 6000000/ha or so jgrains number per ear is 58 ,the weight of 1000-grain is 40 grams or so .Population dynamics should be that bisical seedlings is within 525-600/ha,the highest number of ears is4027000000/ha or so,the highest leaves index is within 8.5 9.5,suitable sowing date is at the middle of October.