Phenotypic and genotypic characterization of wheat landraces of Pakistan

Amir, Rabia; Minhas, Nasir Mehmood; Gul, Alvina; Farrakh, Sumaira; Ali, Ahmad; Bux, Hadi; Kazi, Mujeeb

doi:10.9755/ejfa.v26i2.17008

Cited by 7 publications

(4 citation statements)

References 22 publications

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“…Bread wheat genotypes possessed highest number of spikes m -2 , heaviest kernel weight and highest grain yield while durum wheat had higher values for other two yield traits based on the mean for each species (Table 6). Many researchers reported significant differences for yield characters among the wheat genotypes (Amir et al, 2014;Mehari et al, 2015;Ur Rehman et al, 2015;Kaya and Turkoz, 2016) The data in Table 7 showed that days to heading was lower in the first season than second in all genotypes. This result could be due to differences between weather data of two seasons (Fig.…”

Section: Agronomic and Earliness Characters Of Wheat Genotypesmentioning

confidence: 97%

Evaluation of agronomic traits and assessment of genetic variability in some popular wheat genotypes cultivated in Saudi Arabia

Al-Otayk

2019

Aust J Crop Sci

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The present study was carried out to evaluate agronomic traits and assessment of genetic variability of some wheat genotypes at Qassim region, Saudi Arabia, during 2010/11 and 2011/12 seasons. Fourteen wheat genotypes including five bread wheat and nine durum wheat genotypes were evaluated in randomized complete block design with three replications. The genotypes were evaluated for ten different yield contributing characters viz., days to heading, days to maturity, grain filling period, grain filling rate, plant height, number of spikes m -2 , kernels spike -1 , 1000-kernel weight, grain yield and straw yield. The combined analysis of variance indicated the presence of significant differences between years for most characters. The genotypes exhibited significant variation for all the characters studied, indicating considerable amount of variation among genotypes for each character. Maximum coefficient of variation was observed for number of spikes m -2 (17%), while minimum value was found for days to maturity. Four genotypes produced statistically similar maximum grain yield, out of them two bread wheat genotypes (AC-3 and SD12) and the other two were durum wheat (AC-5 and BS-1). The genotypes AC-3, AC-5 and BS-1 had higher grain yield and stable in performance across seasons. The estimation of phenotypic coefficient of variation in all the traits studied was greater than those of the genotypic coefficient of variation. High heritability estimates (> 0.5) were observed for days to heading, days to maturity and plant height, while the other characters recorded low to moderate heritability. The high GA % for plant height and days to heading (day) was accompanied by high heritability estimates, which indicated that heritability is mainly due to genetic variance. Comparatively high expected genetic advances were observed for grain yield components such as number of kernels spike -1 and 1000-kernel weight. Grain yield had the low heritability estimate with a relatively intermediate value for expected genetic advance. The results of principle component analysis (PCA) indicated that the superior durum wheat genotypes for grain yield in the two seasons (AC-5 and BS-1) are clustered in group II (Fig. 2). Also, the superior two bread wheat genotypes (AC-3 and SD12) were in group I.

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Section: Agronomic and Earliness Characters Of Wheat Genotypesmentioning

confidence: 97%

Evaluation of agronomic traits and assessment of genetic variability in some popular wheat genotypes cultivated in Saudi Arabia

Al-Otayk

2019

Aust J Crop Sci

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“…It is considered a big hazard for sustainable agriculture and is becoming a worldwide trouble [ 10 , 11 , 12 , 13 ]. A significant rise in drought stress conditions has enforced us to develop climate-resilient, high-yielding genotypes; hence, there is a need to acquire a better understanding of the responses to drought by exploiting the key physiological and molecular traits [ 14 , 15 , 16 ]. Further, it has been estimated that wheat yield can be increased by 25% through the development of abiotic and biotic stress-tolerant cultivars [ 17 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular and Physiological Evaluation of Bread Wheat (Triticum aestivum L.) Genotypes for Stay Green under Drought Stress

Zada

Ali

Binjawhar

et al. 2022

Genes

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Water availability is considered as the main limiting factor of wheat growth illuminating the need of cultivars best adapted to drought situations for better wheat production and yield. Among these, the stay-green trait is thought to be related to the ability of wheat plants to maintain photosynthesis and CO2 assimilation, and a detailed molecular understanding of this trait may help in the selection of high-yielding, drought-tolerant wheats. The current study, therefore, evaluated the physiological responses of the selected wheat genotypes under pot-induced water stress conditions through different field capacities. The study also focused on exploring the molecular mechanisms involved in drought tolerance conferred due to the stay-green trait by studying the expression pattern of the selected PSI-associated light-harvesting complex I (LHC1) and PSII-associated LHCII gene families related to pigment-binding proteins. The results revealed that the studied traits, including relative water content, membrane stability index and chlorophyll, were variably and negatively affected, while the proline content was positively enhanced in the studied wheats under water stress treatments. Molecular diagnosis of the selected wheat genotypes using the expression profile of 06 genes, viz. TaLhca1, TaLhca2, TaLhca3, TaLhcb1, TaLhcb4 and TaLhcb6 that encodes for the LHCI and LHCII proteins, indicated variable responses to different levels of drought stress. The results obtained showed the relation between the genotypes and the severity of the drought stress condition. Among the studied genotypes, Chirya-1 and SD-28 performed well with a higher level of gene expression under drought stress conditions and may be used in genetic crosses to enrich the genetic background of common wheat against drought stress.

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“…Karakterisasi morfologi pada tanaman dilakukan untuk mengetahui ciri-ciri fenotipik yang membedakan antar genotipe. Hal tersebut telah dilakukan pada tanaman gandum seperti pada penelitian Kumar et al (2011), Chen et al (2012, Sonmezoglu et al (2012), Amir et al (2014), Filatenko dan Hammer (2014), dan Sharma et al (2014).…”

Section: Karakter Morfologiunclassified

Karakterisasi Morfologi dan Sifat Kuantitatif Gandum (Triticum aestivum L.) di Dataran Menengah

et al. 2016

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ABSTRACT Indonesia is one of the largest wheat importers. Suitable environmental condition for wheat needs to be studied if wheat is going to be widely cultivated in Indonesia. The adaptability of wheat grown in various climates and altitudes is one of the important aspects. The objective of this experiment was to study the quantitative and morphological character of wheat grown in middle land (540 m asl) in Bogor, West Java. The experiment was arranged in randomized complete block design with three replications. Wheat genotypes used were three national varieties (Nias, Selayar, and Dewata), four new improved varieties (Guri 3 Agritan, Guri 4 Agritan, Guri 5 Agritan, and Guri 6 Unand), and one introduced genotype (SBD). Data were collected for several quantitative variables and seventeen morphological characters based on UPOV descriptor. The result showed that wheat growth was restricted in Bogor. Genotype determined plant height, leaf number, ear length, root length, number of spikelet, harvest time, seed weight, number of tillers, and plant biomass. Based on ear length, grain weight, and plant biomass, Guri 3 Agritan had the highest production than the other genotypes. Keywords: diversity, genetic relationship, high temperature, introduced genotype, phylogenetic

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Phenotypic and genotypic characterization of wheat landraces of Pakistan

Cited by 7 publications

References 22 publications

Evaluation of agronomic traits and assessment of genetic variability in some popular wheat genotypes cultivated in Saudi Arabia

Evaluation of agronomic traits and assessment of genetic variability in some popular wheat genotypes cultivated in Saudi Arabia

Molecular and Physiological Evaluation of Bread Wheat (Triticum aestivum L.) Genotypes for Stay Green under Drought Stress

Karakterisasi Morfologi dan Sifat Kuantitatif Gandum (Triticum aestivum L.) di Dataran Menengah

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