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1、棉花学报CottonScience2015袁27渊4冤院354―361蕾期调亏灌溉对海岛棉棉铃发育及产量的影响111*2221闫曼曼袁郑剑超袁张巨松袁田立文袁郭仁松袁林涛袁石洪亮渊1.新疆农业大学/教育部棉花工程研究中心袁乌鲁木齐830052曰2.新疆农业科学院经济作物研究所袁乌鲁木齐830091冤摘要院以新海24号尧新海35号为材料袁设置滴灌定额0m3窑hm－2渊重度调亏袁土壤含水量10%左右冤尧900m3窑hm－2渊轻度调亏袁土壤含水量16%左右冤尧1800m3窑hm－2渊丰水袁土壤含水量20%左右冤3个处理袁
2、研究蕾期调亏灌溉对海岛棉棉铃发育及产量的影响遥结果表明院0m3窑hm－2处理的铃直径尧铃体积分别在花后10d内尧20d内快速增大袁铃重在花后30d内增长速度较快曰但铃直径尧铃体积在开花后30d袁铃重在开花后50～60d袁均较900m3窑hm－2和1800m3窑hm－2处理显著下降遥900m3窑hm－2处理的铃直径尧铃体积及铃重均与1800m3窑hm－2处理无明显差异遥皮棉产量以900m3窑hm－2处理最高袁平均为2372.92kg窑hm－2袁比1800m3窑hm－2和0m3窑hm－2分别高10.97%和41.78%
3、遥因此袁海岛棉蕾期滴灌定额以900m3窑hm－2较为适宜遥关键词院调亏灌溉曰海岛棉曰铃直径曰铃体积曰铃重曰产量中图分类号院S562.01文献标志码院A文章编号院1002-7807(2015冤04-0354-0810.11963/issn.1002-7807.201504008111*2221YanManman,ZhengJianchao,ZhangJusong,TianLiwen,GuoRensong,LinTao,ShiHongliang(1.830052,;2.830091,)Todeterminetheeff
4、ectsofregulateddeficitirrigationonbolldevelopmentandyieldinislandcottonatthebuddingstage,twovarieties(Xinhai24andXinhai35)weregrownunderthreedripirrigationquotalevels:0m3窑hm－2(severedeficitirri-gation,soilmoisturecontentapproximately10%),900m3窑hm－2(lightdefici
5、tirrigation,soilmoisturecontentapproximately16%),and1800m3窑hm－2(abundantwater,soilmoisturecontentapproximately20%).With0m3窑hm－2,therapidlyexpandingbolldiameterstageoccurredwithin10daysafterflowering,therapidexpansionstageofbollvolumeoccurredwithin20daysaf-terf
6、lowering,andweightincreasedfasterwithin30daysafterflowering.However,bolldiameterandvolumeafter30daysofflowering,andbollweightat50-60daysafterflowering,werelowestfor0m3窑hm－2.Therewerenosignificantdifferencesinbolldiameter,volume,orweightbetween900m3窑hm－2and1800
7、m3窑hm－2.Lintyieldwashighestfor900m3窑hm－2andaver-aged2372.92kg窑hm－2;thiswashigherby10.97%and41.78%for1800m3窑hm－2and0m3窑hm－2,respectively.Weconcludethatadripirrigationquotaof900m3窑hm－2isappropriateatthebuddingstageforislandcotton.regulateddeficitirrigation;islan
8、dcotton;bolldiameter;bollvolume;bollweight;yield海岛棉纤维具有长尧细尧强等突出特点袁在棉官和生殖器官之间的分配比例发生改变袁以期取[2]花栽培种中品质最优袁是纺高支精梳纱和特种织得较高的经济产量遥目前袁随着地下水位的下[1]物的重要原料遥调亏灌溉渊Regulateddeficitirri-移袁已将棉田的头水提前
