海岛棉高产群体特征及调控技术研究-作物栽培与耕作学专业论文.docxVIP

AbstractAdopIion Abstract AdopIion tllree quarters×t11rce levels onh090Ilal dcsign锄d璐ing fuz巧mamematics evaluation．StlIdy on Population(舢al时characte幅锄d dens时，ni仃ogenoIIs feltilize‘tip pruning石mes s船isl锄d conon yicId and劢er qIIaI咄for higIl yied of Sea IsJalld Co仕0n．Expound cultivated ofhi曲yield趾d eximio僻 fiber qua“ty f．or Sea IsI锄d Cotton in Xin JiaI】g．The main resuI招were鹤fo¨ows： 1．It is f酤te卜gmwn for high yield level colony．Dry substance of plant柚d procfe粕t印parat懈we佗 ∽cumulated f如teL The m越mal spced was presented t0 postemergence 87～9ld柚d 89～95d，the 锄ount of∽curnulation was枷ved 11980～15721∥llIn2∞d 6335～7149k∥llIll2，in pmponion wim pl∞t weight rate ofprocre柚t appa眦∞is 45．47～52．87％． 2．The arnoum of fmit branch，boll鲫d weiglle of proc嘲nt appmtus js 91．74～124．57branchs／m2， 59．98～77．44 bolls，m2，0．0116～O．0135 k∥m2． 3．The mgmssion model be眦％cultatjon fktors柏d yield w船established．The cultation fktors rcs撕cteddegf∞ofcuI“vationme如u∞wascon丘nIlcd．1he resultthathi曲cstyiejdy=0．2415×104蛞， 11In2 canbeobtainedisdens峥ato．3×106plants疗lm2，drcssingcarbamideo．585×103k咖2，tippruning July 23“． 4．The me嬲ure of fiber qualily facto培卸d subject equatiom we∞established．using fIlz巧 mathem砒ics evaluation o№IiIl the regression modeI bet、ve蛐cul忸tion‰tors锄d nb盯qllaI-舭111e肋er qIlality factors res仃icted degree of cultiValion me鹊ure was con矗med．The resun that highest fiber quality F1．6117 c∞be ob嘲ned is denshy at 0．1632×106plants／hm2，drcssing carbⅫide O．126×104kg，11m2，tip pnlning July 25“． 5．D∞sny is present neg撕Ve co玎elate be“Veen仙erlengtll lot limite，streng札elongatioIIscI锄d pres翎t positjVe co盯elatc benⅣeen micronaire．Dressing c盯b枷ide锄ount is pre辩m m班ive correlate beMeen肋er s仃en舀llmicmllairc and presem positjVe correlale be铆een fiber lcngm lot 1imite，elongation， Scl．T．p pnlning times is present posj_civc cormlate bctween fiber len掣h lot limite，stren群h，micronaire， elongation∞d SCl． 6．Yield卸d舳盯quaI时optimal combination be obtained is is dens时at O．21×106 plants，}lm2， dresshlg carbⅢide O．525×103kgmm2，tip