Estimation of Combining Ability in F1 and F2 Generations of Diallel Crosses in Winter Wheat (Triticum aestivum L. Em. Thell)

Kumar, Bijendra; Bharadwaj, D. N.; Singh, Lokendra; Gupta, Sarvendra Kumar

doi:10.20546/ijcmas.2017.612.161

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Apabila rasio tersebut mendekati atau lebih besar dari satu (1) maka daya prediksinya tertuju hanya pada DGU. Sebaliknya, apabila rasio yang dihasilkan lebih kecil dari satu (1) maka daya prediksinya adalah ke arah DGK (Baker, 2010;Fasahat et al, 2016;Kumar, Bharadwaj, Singh, & Gupta, 2017). Selanjutnya dikemukakan bahwa aksi gen untuk DGU dipengaruhi oleh gen aditif, dan dipandang dari sudut statistik merupakan efek utama (main effect).…”

Section: Hasil Dan Pembahasan Performa Karakter Jumlah Buah Populasi F1unclassified

Analisis Daya Gabung dan Korelasi Karakter Jumlah Buah Kakao pada Persilangan Setengah Dialel

Izzah¹,

Wicaksono²,

Tresniawati³

et al. 2019

J. tanam. industri dan penyegar

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<em>Analysis of combining ability and correlation between characters in cacao plays an important role and benefits in an effort to obtain superior high-yield genetic material. This analysis makes it easy to find out the best combination of parents in producing superior progeny. The study aimed to analyze the combining ability and correlation of cacao pod numbers in F1 population generated from half-diallel crossing. The study was conducted at Pakuwon Experimental Station, Sukabumi, West Java, at an altitude of 450 m above sea level with Latosol soil type and B climate type (Schmidt and Fergusson), from 2014 until 2018. The experiment was arranged using a randomized block design (RBD) with 10 combinations of half-diallel crossing method that were repeated three times. The parental genotypes used were ICCRI 03, TSH 858, DR 1, ICS 13, and SCA 6. The variables observed were the number of healthy pods, number of rotten pods, number of cherelle wilts, and total pod numbers. The combining ability was analyzed using the Griffing 4 method, while correlation analysis was carried out phenotypically and genotypically.The results showed the action of non-additive genes in the F1 generation and three combinations of crosses, namely ICCRI 03 x TSH 858, TSH 858 x DR 1, and ICS 13 x SCA 6 had the opportunity to be developed into superior hybrids. In addition, it is known that there were phenotypic and genotypic positive correlations between the observed pod component characters.</em>

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Section: Hasil Dan Pembahasan Performa Karakter Jumlah Buah Populasi F1unclassified

Analisis Daya Gabung dan Korelasi Karakter Jumlah Buah Kakao pada Persilangan Setengah Dialel

Izzah¹,

Wicaksono²,

Tresniawati³

et al. 2019

J. tanam. industri dan penyegar

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A meta‐analysis of combining ability effects in wheat for agronomic traits and drought adaptation: Implications for optimizing biomass allocation

et al. 2021

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Combining ability effects for yield related traits can serve as selection criteria to pursue breeding for optimal biomass allocation in wheat (Triticum aestivum). The objective of this paper is to provide information based on a retrospective quantitative genetic analysis on combining ability studies of wheat for yield and yield‐related traits to predict potential genetic gains achievable in improving biomass allocation for drought tolerance and soil carbon storage. The study compares data on the general combining ability and specific combining ability effects of wheat for yield and related traits under optimum and drought stressed conditions from 40 studies around the world. Days to heading (DTH), plant height (PH), number of tillers per plant (TN), kernels per spike (KPS), 1,000‐kernel weight (TKW), shoot biomass (SB), and grain yield (GY) exhibited wide variation for general combining ability (GCA) and specific combining ability effects. Progeny performance increased by 14.30 and 4.04% for SB and GY, respectively, compared with parental values under optimum water conditions. Number of tillers and SB exhibited positive associations with GY (.45 ≤ r ≤ .85, p < .05) under both water conditions. Meta effect sizes for drought stress were negative. The highest meta‐effect sizes were calculated for DTH (−4.5) followed by SB (−2.0), whereas KPS (−1.25) had the lowest. The genetic gains for PH, SB, and other yield components showed that divergent crosses involving complementary parents could enhance biomass allocation patterns in wheat. This could be used as a basis for improving biomass allocation to roots.

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Estimation of Combining Ability in F1 and F2 Generations of Diallel Crosses in Winter Wheat (Triticum aestivum L. Em. Thell)

Cited by 2 publications

References 5 publications

Analisis Daya Gabung dan Korelasi Karakter Jumlah Buah Kakao pada Persilangan Setengah Dialel

Analisis Daya Gabung dan Korelasi Karakter Jumlah Buah Kakao pada Persilangan Setengah Dialel

A meta‐analysis of combining ability effects in wheat for agronomic traits and drought adaptation: Implications for optimizing biomass allocation

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