不同灌溉模式对陕西关中小麦产量的影响

[目的]筛选陕西关中节水高产的优良小麦品种,为良种良法配套提供依据。[方法]在适当晚播条件下,以陕西关中6个主栽品种为供试材料,设置不同灌水模式,采用2因素裂区设计,对不同小麦品种产量及产量性状进行研究,筛选出陕西关中节水高产的优良品种。[结果]灌水模式对不同品种产量性状的影响不同,在底墒水＋春2水模式下明显增加了成穗数。在底墒水条件下陕538平均产量为8.20 t/hm^2,显著高于其他5个品种,小偃22平均产量为7.60 t/hm^2,居第2位,但与其后4个品种的产量无显著差异。在春灌2水条件下,西农979平均产量为7.83 t/hm^2,显著高于其他5个品种。[结论]陕538和小偃22具有一定的抗旱节水高产特性;西农979属于高水肥的高产品种。

Effects of Different Irrigation Methods on Wheat Yield in Shaanxi Guanzhong Area

[Objective] The aim was to screen water saving,high-yield and improved wheat varieties in Shaanxi Guanzhong area,and provide the basis for good supporting law.[Methods]In the appropriate conditions of late sown,six main cultivation varieties were selected as tested materials in Shaanxi Guanzhong area,different irrigation modes were set up,and a split plot experiment with two factors was used to study yield of different varieties of wheat and yield characters and screen improved wheat varieties in Shaanxi Guanzhong area.[Result]The effect of irrigation modes on yield characters of different varieties was different,under the mode of Deshang water + spring 2 water,the ear number increased obviously.In Deshang water conditions,average yield of Shaan 538 was 8.20 t/hm2,significantly higher than the other five varieties,average yield of Xiaoyan 22 was 7.60 t/hm2,coming in second place,but with the output of 4 varieties thereafter no significant differences.In Chunguan 2 water conditions:Xinong 979 average yield of 7.83 kg/hm2,significantly higher than the other five varieties.[Conclusion] Shaan 538 and Xiaoyan 22 have certain water saving;high yield characteristics drought Xinong 979 belongs to high water of high yielding varieties.