摘要
2021年为北京市冬小麦历年播种持续时间最长年份,晚播比例达87.1%。为探明晚播及过晚播对冬小麦生长发育及产量的影响,分别调查了多穗型品种‘航麦247’和大穗型品种‘济麦22’在5个自然播期下的表现。结果表明:晚播及过晚播小麦生育期缩短,单株干质量降低、株高降低、基部节间变短、穗子变短、不孕小穗数增多、穗粒数、千粒质量及产量下降;与适期早播相比,‘航麦247’推迟播种4、11、20、28 d,减产7.9%、21.3%、28.1%、34.1%;‘济麦22’推迟播种7、17、20、21 d,减产6.42%、23.9%、28.9%、40.2%。正常年份北京地区播种冬小麦不宜晚于10月10日,如无法避免晚播或过晚播,选择‘航麦247’更易获得较高产量。
The longest sowing time of winter wheat in Beijing over the years was 2021 and the proportion of late sowing was 87.1%. In order to study the effects of late sowing and over-late sowing on the growth and yield of winter wheat, this experiment investigated the performance of multi-spike variety ’Hangmai 247’ and large-spike variety ’Jimai 22’ at five separate natural sowing date. The results showed that the growth period, dry weight per plant, plant height, basal internode length, spike length, number of sterile spikelets,grain number per spike, 1 000-grain weight and yield of late-sowing and over-late-sowing wheat decreased. Compared with the treatment of suitable sowing date and early sowing date, ’Hangmai 247’ postponed sowing date for 4,11,20 and 28 days with the yield reducing by 7.9%, 21.3%, 28.1% and 34.1%, while ’Jimai 22’ postponed sowing date for 7,17,20 and 21 days with the yield reducing by 6.42%, 23.9%, 28.9% and 40.2%. Winter wheat should not be sown later than October 10th in normal year. If late sowing or late sowing couldn’t be avoided, it is easier to get a higher yield by choosing ’Hangmai 247’.
作者
梅丽
连艺佳
孟范玉
周吉红
李润枝
王俊英
MEI Li;LIAN Yijia;MENG Fanyu;ZHOU Jihong;LI Runzhi;WANG Junying(Beijing Agricultural Technology Extension Station,Beijing 100029,China;Beijing University of Agriculture,Beijing 102206,China)
出处
《天津农业科学》
CAS
2023年第2期27-33,共7页
Tianjin Agricultural Sciences
基金
北京市科技转化与推广服务项目(2130106)。
关键词
冬小麦
播期
品种
群体性状
个体性状
产量
winter wheat
sowing date
variety
population traits
individual traits
yield
