Inheritance of terminal heat tolerance in two spring wheat crosses

dc.creatorPaliwal, R.
dc.creatorArun, B.
dc.creatorSrivastava, J.P.
dc.creatorJoshi, A.K.
dc.date2021-01-15T15:39:46Z
dc.date2021-01-15T15:39:46Z
dc.date2013
dc.date.accessioned2023-07-17T20:06:40Z
dc.date.available2023-07-17T20:06:40Z
dc.identifierhttps://hdl.handle.net/10883/21126
dc.identifier10.1556/CRC.2013.0013
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7512912
dc.descriptionThe objective of this study was to develop an understanding about the genetics of terminal heat tolerance in wheat (Triticum aestivum L.). The minimum number of genes was assessed using Mendelian and quantitative genetic approach. Two crosses were made between heat tolerant and heat susceptible bread wheat cultivars: NW1014 × HUW468 and HUW234 × HUW468. Heat susceptible HUW468 was common in both the crosses. The F4, F5 and F6 generations were evaluated including F1 in two different dates of sowing (normal and very late) under field conditions in year 2006?07. The data was recorded for grain fill duration (GFD) and thousand-grain weight (TGW). Based on data of two dates, decline% and heat susceptibility index (HSI) of GFD and TGW were estimated. Heat tolerance in F1 showed absence of dominance. Estimation of genes using Mendelian approach in F4, F5 and F6 progenies (148?157) of the two crosses suggested that heat tolerance was governed by a minimum of three genes. Quantitative approach also indicated similar number of genes. The distribution of progeny lines in F4 and F6 supported the polygene nature of heat tolerance. These genes if mapped by molecular approach can play an important role through marker assisted selection (MAS) for developing improved thermo-tolerant lines of wheat.
dc.description400-408
dc.languageEnglish
dc.publisherAkadémiai Kiadó
dc.publisherSpringer
dc.publisherhttps://link.springer.com/article/10.1556/CRC.2013.0013#rightslink
dc.publisherhttps://akjournals.com/view/journals/0806/41/3/article-p400.xml
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dc.rightsOpen Access
dc.source3
dc.source41
dc.source0133-3720
dc.sourceCereal Research Communications
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectHeat Susceptibility Index
dc.subjectTRITICUM AESTIVUM
dc.subjectHEAT TOLERANCE
dc.subjectGENETIC INHERITANCE
dc.titleInheritance of terminal heat tolerance in two spring wheat crosses
dc.typeArticle
dc.typePublished Version
dc.coverageSzeged (Hungary)


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