



摘要[目的]探索鮮食玉米主要農藝性狀對產量的影響,為紅塔區優質高產鮮食玉米的選育和栽培提供理論依據。[方法]應用灰色關聯度分析法,分析糯玉米、甜糯玉米、甜玉米3類鮮食玉米品種的10個農藝性狀與產量的相關性。[結果]3類鮮食玉米主要農藝性狀與產量的關聯度不同,前4位的性狀排序糯玉米為穗行數gt;單穗鮮重gt;穗粗gt;穗粒數,甜糯玉米為穗粒數gt;穗長gt;穗行數gt;單穗鮮重,甜玉米為全株葉片數gt;生育期gt;穗位高gt;株高。[結論]影響糯玉米、甜糯玉米產量的主要因素都是穗部性狀,在品種選育上要重視穗部性狀的選擇;而影響甜玉米產量的主要因素都是營養生長性狀,生育期長則積累的營養物質多,促使全株葉片數增多,穗位及株高增高,為營養物質向穗部轉移打下了基礎,在品種選育上要重視營養生長性狀的選擇。
關鍵詞鮮食玉米;農藝性狀;產量;相關性
中圖分類號S513"文獻標識碼A"文章編號0517-6611(2024)24-0029-04
doi:10.3969/j.issn.0517-6611.2024.24.006
開放科學(資源服務)標識碼(OSID):
CorrelationAnalysisBetweenMainAgronomicTraitsandYieldofThreeTypesofFreshCorns
TIANJing-hua
(YuxiCityHongtaDistrictPlantingIndustryDevelopmentServiceCenter,Yuxi,Yunnan653100)
Abstract[Objective]Toexploretheimpactofthemainagronomictraitsoffreshcornonyield,toprovideatheoreticalbasisforthebreedingandcultivationofhigh-qualityandhigh-yieldfreshcorninHongtaDistrict.[Method]Greycorrelationanalysiswasappliedtoanalyzethecorrelationbetween10agronomictraitsandyieldofthreetypesoffreshcornvarieties:glutinouscorn,sweetglutinouscornandsweetcorn.[Result]Thecorrelationbetweenthemainagronomictraitsandyieldofthethreetypesoffreshcornisdifferent.Thetopfourcharactersofglutinouscornwereearrowsgt;freshweightpereargt;eardiametergt;eargrainnumber,sweetglutinouscornwasintheorderofeargrainnumbergt;earlengthgt;earrowsgt;freshweightperear,andsweetcornwasintheorderofwholeplantleafnumbergt;growthperiodgt;earheightgt;plantheight.[Conclusion]Themainfactorsaffectingtheyieldofglutinouscornandsweetglutinouscornweretheeartraits,attentionshouldbepaidtotheselectionofeartraitsinvarietybreeding;themainfactorsaffectingtheyieldofsweetcornwerenutrientgrowthtraits,andtheaccumulationofnutrientsduringthelonggrowthperiodledtoanincreaseinthenumberofleaves,earpositionandplantheightofthewholeplant,layingthefoundationforthetransferofnutrientstotheear.Therefore,attentionshouldbepaidtotheselectionofnutrientgrowthtraits.
KeywordsFreshcorn;Agronomictraits;Yield;Relativity
鮮食玉米的產量受生育期、株高、穗長等農藝性狀的綜合影響,是一個不定值,是“灰”的范疇,整個系統是一個灰色系統,因而采用灰色關聯度分析法來分析其相關性。近年來,很多學者在小麥[1]、油菜[2]、水稻[3]等作物上應用灰色關聯度分析法分析農藝性狀與產量的相關性,在鮮食玉米[4-12]上的應用也特別廣泛,為不同作物品種選育提出可供參考的理論依據。
隨著人們膳食水平的調整,對于鮮食玉米有了較大的市場需求,以此帶動了云南省鮮食玉米產業的快速發展。……