不同播期对冀张薯8号干物质积累和产量的影响  

Effects of Different Sowing Periods on Dry Matter Accumulation and Yield of Potato ‘Jizhangshu No.8'

作　　者：马永强[1] 路颖[2] 田再民[1] 龚学臣[1] 尹江[1] 许明丽 乔晓东 

机构地区：[1]河北北方学院农林科技学院,河北张家口075000 [2]建平县农业技术推广中心,辽宁朝阳122400 [3]张家口市农牧局,河北张家口075000

出　　处：《吉林农业科学》2015年第6期31-33,共3页Journal of　Jilin Agricultural Sciences

基　　金：公益性行业(农业)科研项目(3-6);张家口市科技局项目(1112012C-4);张家口市科技局项目(1311018C-5)

摘　　要：以冀张薯8号为材料,研究不同播期(B1,B2,B3)对马铃薯干物质积累和产量的影响。结果表明:在块茎增长后期至成熟期,不同播期条件下,叶片、地上茎、根、匍匐茎、块茎和全株干物质积累量,均为B2>B1>B3。块茎增长后期至成熟期,马铃薯在B2播期时的各器官干物质积累明显高于其他播期,且产量最高,为36 967.5 kg/hm^2。因此,B2为最适播期。Using‘Ji Zhang Shu No.8' as material, effect of different sowing periods on dry matter accumulationand distribution and yield of potato was studied in the paper. The results showed that from the later tu-ber growth stage to mature stage, leaves, stems, roots, stolons, tubers and the whole plant dry matter accumulationwere B2 > B1 > B3. During later tuber growth stage to mature stage, dry matter accumulation and yield of B2 weresignificant higher than other sowing periods, and the yield, 36 967.5 kg/hm^2, was the highest. Therefore, B2 was thesuitable sowing period.

关 键 词：马铃薯 播期 干物质积累与分配 产量 

分 类 号：S532[农业科学—作物学]