{"title":"Heterosis for yield and quality traits in traditional and evolved Basmati","authors":"H. K. Jaiswal, Aarti Sharma","doi":"10.35709/ory.2022.59.1.15","DOIUrl":null,"url":null,"abstract":"A study was undertaken on 36 F1s obtained from diallel (without reciprocals) mating design to explicate the genetic behavior of traditional and evolved basmati varieties for 14 traits. F1s were divided into traditional x traditional (T x T); evolved x evolved (E x E) and traditional x evolved (T x E) basmati types; amidst which E x E and T x E type of crosses exhibited high positive average heterosis in comparison to T x T type of crosses for yield per plant trait. Assessment of quality traits for average heterosis indicated that, all the three types of crosses were equally effective for KL, KB and LBR. Manifestation of average heterosis for KLAC was better in TxT type as none of the ExE type of crosses showed significant positive heterosis; likewise, among 20 T x E type of crosses only 3 crosses showed significant positive heterosis. Heritability in narrow sense was high for: MPL, 100-GW, NGP, YPP, KL, LBR, and KLAC.","PeriodicalId":19618,"journal":{"name":"ORYZA- An International Journal on Rice","volume":"26 2","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ORYZA- An International Journal on Rice","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.35709/ory.2022.59.1.15","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A study was undertaken on 36 F1s obtained from diallel (without reciprocals) mating design to explicate the genetic behavior of traditional and evolved basmati varieties for 14 traits. F1s were divided into traditional x traditional (T x T); evolved x evolved (E x E) and traditional x evolved (T x E) basmati types; amidst which E x E and T x E type of crosses exhibited high positive average heterosis in comparison to T x T type of crosses for yield per plant trait. Assessment of quality traits for average heterosis indicated that, all the three types of crosses were equally effective for KL, KB and LBR. Manifestation of average heterosis for KLAC was better in TxT type as none of the ExE type of crosses showed significant positive heterosis; likewise, among 20 T x E type of crosses only 3 crosses showed significant positive heterosis. Heritability in narrow sense was high for: MPL, 100-GW, NGP, YPP, KL, LBR, and KLAC.
对36个采用双列杂交(无往复杂交)设计的F1s品种进行了遗传行为分析，分析了传统和进化的香米品种在14个性状上的遗传行为。f1分为传统x传统(T x T);进化的x进化的(E x E)和传统的x进化的(T x E)巴斯马蒂类型;其中，E × E型和T × E型杂交在单株产量性状上表现出较高的正平均杂种优势。平均杂种优势品质性状评价结果表明，3种杂交组合对KL、KB和LBR均具有同等效果。TxT型KLAC的平均杂种优势表现较好，ExE型杂交均未表现出显著的正杂种优势;同样，在20个T × E型杂交组合中，只有3个表现出显著的正杂种优势。MPL、100-GW、NGP、YPP、KL、LBR和KLAC的狭义遗传力较高。
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