摘要
播期延迟易使小麦产量下降,为了探讨药剂拌种对迟播小麦的壮苗效应及产量的影响,以‘淮麦40’为试验材料,设置4组不同药剂拌种处理,调查分析了小麦生长素质、籽粒产量等方面的数据。结果表明:通过药剂拌种能提高小麦成苗率;降低麦苗高度,增加叶龄,促进根系生长及生物量积累;可以促进分蘖,增加有效穗数,提高大穗比例,具有增产效应。其中药剂Y3表现最优,与对照处理比较,成苗率提高了2.1个百分点,在越冬前使小麦株高降低11.9%,叶龄增加16.4%,茎基部宽度增加58.2%,地上部及根系干重分别增加35.8%和45.9%;分蘖能力显著增强,有效穗数增加12.4%,穗粒数及千粒重得到提高,产量增加19.4%。综上表明,在小麦迟播情况下,使用药剂Y3拌种可以增强小麦生长素质,实现稳产增产。
Delayed sowing time can easily lead to a yield decrease in wheat.In order to explore the effect of chemical seed dressing on the seedling strength and yield of late sowing wheat,‘Huaimai 40’was used as the experimental material,and four different chemical seed dressing treatments were set up to investigate and analyze the data of wheat growth quality,grain yield,and other aspects.The results showed that chemical seed dressing could improve the seedling rate of wheat,reduce the seedling height,increase leaf age,and promote root growth and biomass accumulation.The seed dressing could increase tillering and effective panicle number,enhance the proportion of large panicles,and improve grain yield.Compared with the control,Y3 treatment promoted the seedling rate by 2.1%,reduced plant height by 11.9%before overwintering,increased leaf age by 16.4%,enhanced the width of the stem base by 58.2%,and increased the dry weight of the aboveground and root systems by 35.8%and 45.9%,respectively.The tillering ability was significantly enhanced,therefore the effective panicle number was increased by 12.4%with Y3 treatment.The grain number and thousand grain weight per panicle were enhanced,and grain yield was increased by 19.4%with Y3.In summary,Y3 treatment can enhance the growth quality of wheat and achieve yield stability and increase under the condition of delayed sowing of wheat.
作者
邵文奇
董青君
董玉兵
钟平
纪力
陈川
章安康
SHAO Wenqi;DONG Qingjun;DONG Yubing;ZHONG Ping;JI Li;CHEN Chuan;ZHANG Ankang(Huaiyin Institute of Agricultural Sciences of Xuhuai Region in Jiangsu,Huaian,Jiangsu 223001)
出处
《中国农学通报》
2024年第6期22-28,共7页
Chinese Agricultural Science Bulletin
基金
淮安市农科院科研发展基金“稻茬小麦肥药壮苗调控技术与产品研发”(HNY202121)
江苏省科技项目“江苏黄河故道沿线中低产农田质量提升关键技术集成与示范”(BE2021378)。
关键词
小麦
迟播
拌种
壮苗效应
产量
wheat
late sowing
seed dressing
seedling strength effect
yield
