Combining ability in maize
WebCombining ability tests consisted mainly of crosses between: a) Recombinant Lines (RL) of common pedigree, b) recombinant lines and freely available (FR) inbred lines and c) … WebBreeding of early white QPM maize hybrids with tolerance to CDHS and the information on the gene action involved in the inheritance, the combining ability and heterotic patterns of inbred lines in the IITA-MIP are crucial to their successful use for hybrid development and production [26,28].
Combining ability in maize
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WebSep 3, 2024 · Knowledge of combining ability and genetic diversity are important prerequisites for the development of outstanding hybrids that are tolerant to high plant … WebIn the second stage, the best estimates of the general combining ability (GCA) for grain weight were found in progenies 51, 33, 17, 9, 3, and 67, showing good performance and good potential for ...
WebWhite maize generally has higher harvest grain moisture content than yellow maize of equal physiological maturi... Combining Ability for Grain Moisture, Husk Moisture, and … WebMar 1, 1999 · General combining ability variance was only significant at the ear internode, whereas SCA variance was not significant at either internode. Reciprocal effects were unimportant at either internode. For the ear internode, progeny performance can be adequately predicted from GCA estimates.
WebTherefore, maize breeding program can engage in hybridization and synthetic variety formation based on the information of inbred lines with high negative value GCA effect … WebSep 23, 2016 · The general combining ability (GCA) for traits in the Ye478-related lines are provided as relative values that were calculated with the following equation: Y i = 100% × (GCA i - GCA 478 )/P 478, where GCA i refers to the GCA value of line i, GCA 478 refers to the GCA value of line Ye478, and P 478 refers to the phenotypic value of line Ye478.
WebJan 20, 2024 · Combining ability estimates the ability of a genotype to generate suitable offspring (Allard 1960 ). It is divided broadly into general combining ability (GCA) of the parental lines and the specific combining ability (SCA) of …
WebThere are two types of combining ability (namely, gca and sca). Sprague and Tatum (1942) defined gca as the average performance of lines in a series of hybrid combinations and sca as the deviation of certain crosses from the average performance of the lines. alachi limitedWebCombining ability and gene action for grain yield and other traits in maize were estimated under water stress and non-stress conditions at the Institute for Agricultural Research farms located at Samaru and Kadawa using North Carolina mating design II. a la chataigne parisWebDec 20, 2024 · Specific combining ability was computed as follows: SCAx = Xx − E (Xx) = Xx− [GCAf + GCAm + µ] Here, SCAx is equal to SCA for a cross, Xx is equal to observed mean values of the cross and E (Xx) = expected value of the cross based on GCAf and GCAm [ 22 ]. 3. Results 3.1. Analysis of Variance ala chicago 2023 conference registrationWebFeb 13, 2013 · Maize ranks 3rd among cereal grown crop in Pakistan. It was grown on area of 1052.1 thousand hectares, with the total annual production of 3593 thousand tones and average yield of 3415 kg ha-1, similarly in Khyber Pakhtunkhwa it was sown on about 509.5 thousand hectares, with the total annual production of 957.9 thousand tones and with an … alachi indianWebMay 10, 2024 · Maize ( Zea mays) was one of the earliest crops to benefit from the power of heterosis by breeding filial one (F 1) hybrids exhibiting superior vigor for plant growth and grain yield. The mystery of heterosis has been explored for over a century, but the underlying mechanism remains insufficiently understood [ 20 ]. alachi hotel alacatiWebJan 20, 2024 · Combining ability estimates the ability of a genotype to generate suitable offspring (Allard 1960). It is divided broadly into general combining ability (GCA) of the … alachi menuWebTherefore, maize breeding program can engage in hybridization and synthetic variety formation based on the information of inbred lines with high negative value GCA effect for diseases tolerant and high GCA for grain yield. Key words: Combining ability, general combining ability (GCA), inbred lines, specific combining ability (SCA). ala chirilu