欢迎来到天天文库
浏览记录
ID:9049547
大小:1.05 MB
页数:7页
时间:2018-04-15
《春播与复播油葵产量形成及群体生理参数比较研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国油料作物学报2014,36(1):059-065ChineseJournalofOilCropSciencesdoi:10.7505/j.issn.1007-9084.2014.01.009春播与复播油葵产量形成及群体生理参数比较研究1,21,21,21,21杨相昆,魏建军,张力,张占琴,田海燕(1.新疆农垦科学院,新疆石河子,832000;2.谷物品质与遗传改良兵团重点实验室,新疆石河子,832000)摘要:在新疆石河子地区,在滴灌、种植密度和田间配置方式相同的条件下,比较了春播与复播油葵品种新
2、葵20号产量形成及群体生理参数。结果表明,春播条件下,生育期、生物产量、籽实产量、收获指数分别为97d、22229271.9kg/hm、4349.0kg/hm、0.47,复播条件下则分别为94d、14413.5kg/hm、4106.4kg/hm、0.35。春播和复2播的最大叶面积指数(LAImax)分别为4.54和5.52。每公顷春播的光合势(LAD)为93.25m·d,开花后占77.6%;22复播则为94.12m·d,开花后占82.9%。春、复播全生育期平均净同化率(NAR)分别为3.67、5.26g
3、/(m·d)。采用更早熟的品种,提早播种,使灌浆提前,加之使用植物生长调节剂以增强光合产物向籽实转移,有望进一步提高复播油葵产量。关键词:油葵;春播;复播;群体生理参数;产量中图分类号:S565.503文献标识码:A文章编号:1007-9084(2014)01-0059-07Comparativestudyofgrainyieldandcanopyphysiologicalparameterofoil-sunflowerbetweenspringsowingandstubble-field1,21,2
4、1,21,21YANGXiang-kun,WEIJian-jun,ZHANGLi,ZHANGZhan-qin,TIANHai-yan(1.XinjiangAcademyofAgriculturalandReclamationScience,Shihezi832000,China;2.KeyLabofXinjiangProductionandConstructionCorpsforCerealQualityResearchandGeneticImprovement,Shihezi832000,China)
5、Abstract:Fieldexperimentwascarriedouttocomparativestudyyieldformationandcanopyphysiologicalparameterofoil-sunflowerhybridXinkui20populationbetweenspringsowingandstubble-field.Theresultsshowedthat:thegrowthperiodofspringsowingsunflowerswas97d,andbiologic
6、alyield,seedyieldandharvestindexwere29271.9,4349.0kg/hmand47%respectively.Correspondingly,sunflowersinstubble-fieldwere94d,214413.5,4106.4kg/hmand34.7%respectively.LAImaxofsunflowerinspringsowingandinstubble-field2were4.54and5.52respectivelyLAD.Perhectar
7、eofspringsowingsunflowerwas93.25m·d,andafterflower2ingwas77.6%;LADperhectareofsunflowersinstubble-fieldwas94.12m·d,andafterfloweringwas82.9%;AverageofNARduringwholegrowthdaysofspringsowingsunflowerandsunflowersinstubble-fieldre2spectivelywere3.67,5.26g
8、/m·d.Usingearly-maturingvarietyandearliersowingdate,thegrain-fillingstagecouldbeearlier.Inthemeantime,applyingplantgrowthregulator,couldtransferphotosynthesisproducttoseedsmoreefficientlyandimproveyieldinstubble-field.Keyw
此文档下载收益归作者所有