ABSTRACT The coefficient of parentage among 121 cultivars Coffea arabica L. in Brazil released from 1939 to 2009 was estimated and used study the genetic diversity breeding pattern programs. A low observed within C. Brazil. base between defined by 13 ancestors. Seven ancestors contribute with 97.55% cultivars. Bourbon Vermelho contributed 52.76% for pool followed Sumatra (19.05%) Híbrido de Timor (11.59%). Mundo Novo Icatu 87.65% It calculated that Brazilian is derived seven ancestors,...

ABSTRACT Genotype by environment (G × E) interaction obstructs breeding persuading variations in genotype performance. The aim of the present study was to determine stability and yield performance Desi Kabuli chickpea varieties at different agroecological regions Ethiopia, using parameters. experiment laid out a randomized complete block design (RCBD) with three replications. additive main effect multiplicative (AMMI) analysis variance (ANOVA) indicated highly significant differences ( p ≤...

AFLP, RAPD and SSR molecular markers were used to study the genetic diversity structure of Híbrido de Timor germplasm. The principal coordinate analysis, UPGMA cluster analysis based on dissimilarity Jaccard, Bayesian model-based percentage polymorphic loci, Shannon's information index Nei gene employed assess diversity. analyses demonstrated a high among accessions. grouped accessions into three clusters. is reported. management germplasm variability its potential use in breeding programs...

Híbrido de Timor is the principal source for disease and pest resistance genes in C. arabica breeding program worldwide. The part of chromosome responsible introgressed from canephora to are claimed affect cup quality cultivars derived crossing Timor. Therefore, this work was done study genome introgression its impact on cultivars. For genetic relationship analysis, seventy-six accessions arabica, were analyzed using AFLP SSR molecular markers. To understand effect quality, three...

Genetic diversity is an essential factor for the success of any plant breeding program and should be considered to ensure genetic gain through breeding. In Brazil, research on population structure soybean required since species important commodity country. The study addressed 77 genotypes using 35 SSR markers. estimate index showed that level in collection low. Similarly, Jaccard coefficient Bayesian model based clustering analysis confirmed low among genotypes, providing evidence assumption...

The study was done with the objective of assessing genetic diversity existing among Ethiopian and ICARDA barley germplasm using multivariate data analyses. experiment conducted at Asasa Ambo in Ethiopia, 10 x simple lattices two replications. To quantify differentiation genotypes canonical discriminant analysis, clustering analysis Mahanalobis (D 2 ) distance were used. indicated that first variates explained 95% 91% total variation Ambo, respectively. At both locations, showed maximum on...

The experiment was carried out to determine the appropriate dose of coconut water as supplement for in vitro cultivation zygotic embryos from 19 olive genotypes. isolated seeds were immersed on culture medium containing 0 (control), 25, 50, and 100mL L-1 fresh sterile kept 45 days under controlled environment. percentage germination, shoot length, number roots, leaves internodes measured all ANOVA parameters evaluated showed significant genotypes x doses interaction produced best results...

Jatropha (Jatropha curcas L.) has potential as an oilseed crop that requires the development of technology for its exploitation.The objective this study was to assess population structure and genetic diversity in jatropha accessions at a global level using simple sequence repeat (SSR) molecular markers.Jatropha (N = 109) from 10 countries were genotyped SSR markers.The results showed low among 92 originating India, Mozambique, Ethiopia, Tanzania, Brazil, Honduras, Indonesia, which grouped...

to improve grain yield.The significant positive correlation of spike/ m 2 , 1000-kernel weight, and grain-filling period the direct effect on yield indicated potential these traits as indirect selection criteria in early production system Ethiopia.This study also showed that path coefficient analysis based an ontogenetic model was efficient produced results can be interpreted clearly.

Myrciaria dubia (camu-camu) is an Amazon tree that produces a tart fruit with high vitamin C content.It probably the highest content among all Brazilian crops and it can be used to supplement daily dose.This property has attracted attention of consumers and, consequently, encouraged farmers produce it.In order identify select potential accessions for commercial exploitation breeding programs, M. C.F. Nunes et al. Genetics Molecular Research 16 (1): gmr16019409dubia received considerable...

The jelly palm plant [Butia capitata (Martius) Beccari] is a native of the Cerrado biome used for many purposes in northern Minas Gerais State, Brazil. Dormancy common seeds, resulting slow and uneven germination that may take years to complete. Modification growth pattern, anatomical parameters, physiological biochemical characteristics can be verified due changes light spectrum transmitted through colored shade nets used. Therefore, objective this study evaluate effect on leaf root anatomy...

Meloidogyne species are destructive phytonematodes that result in reduced yields of coffee.The classic test for resistance to exigua coffee progenies is both expensive and time-consuming.The use molecular marker techniques can assist the selection process when it difficult measure phenotype, such as cases nematode infestation.The objective this study was identify microsatellite markers associated with M. F 5 derived from a cross between Híbrido de Timor 440-10 Catuaí Amarelo IAC 86.Of 44...

Cambuci (Campomanesia phaea) belongs to the Myrtaceae family and is native Atlantic Forest of Brazil.It has ecological social appeal but exposed problems associated with environmental degradation expansion agricultural activities in region.Comprehensive studies on this species are rare, making its conservation genetic improvement difficult.Thus, it important develop research understand current situation as well make recommendations for use.This study was performed characterize cambuci...

O objetivo foi avaliar respostas espectrais e ecofisiologicas de cafeeiros consorciados com madeireiras ao deficit hidrico. A cultivar Catuai Vermelho 99 plantada em monocultivo consorciada as arboreas mogno-africano, teca acrocarpo distribuidas dois espacamentos (9 x 13,6 18 m) na linha dos cafeeiros.  As avaliacoes crescimento das do cafeeiro foram realizadas aos 25 meses apos o plantio. nos quatro epocas (junho, agosto, setembro dezembro 2014).  O apresentou maior altura, diâmetro copa...

Jatropha is a potential oilseed crop, which requires mitigating factors such as the low genetic variability of species. The solution runs through research Brazilian germplasm. Attention should be given to germplasm jatropha north Minas Gerais, because this oldest national collection and region may regions diversity due selection pressure arising from environmental adversities. Therefore, objective study was investigate 48 accessions Empresa de Pesquisa Agropecuária Gerais (EPAMIG), using SSR...

Habitat fragmentation has numerous consequences, particularly to endemic species, and a negative impact on the genetic diversity of neglected leading drift. Annona crassiflora Mart. is species that Brazil, its incidence in Cerrado biome decreased. The identification characterization remaining necessary for conservation. Our aim was study population structure A. populations from different regions Minas Gerais State, Brazil (Corinto, Curvelo, Carmo da Mata, Boa Esperança, Paraguaçu) using...

Many scientific and technological fields make use of biotechnology. Among the most important applications biotechnology in agriculture are large-scale commercial micropropagation, genetic transformation development transgenic varieties, embryo rescue plant breeding programs, genotyping based on DNA markers, studies evolution diversity, genome sequencing. These myriad modern molecular biology being applied to olive tree, a crop cultivated for thousands years many places world whose products...

Abstract An experiment was carried out in Adet, Debre Zeit, and Fogera stations, with eight Desi twelve Kabuli type chickpea varieties laid a randomized complete block design (RCBD) three replications. Teketay Geletu of had the greatest combined mean grain yield values 1803.6 kg/ha 1608.9 kg/ha, respectively.While Dhera (1840.8 kg/ha), Hora (1818 Koka (1727.7kg/ha) among varieties. In Adet station, (1960 kg/ha) top producer while (1411.3 (1176.7kg/ha) highest yields. The variety Eshete...

Abstract This trail was initiated to assess the rate of genetic gain achieved so far in Ethiopian chickpea improvement program re-design an effective strategy for future activity. Twenty-eight Desi and Kabuli type varieties released Ethiopia were included this trail. As a result simple linear regression analysis, grain yield typechickpea varietie ~ 33.44 kg/ha/year (P ≤ 0.01, R 2 = 0.44) with relative 2.08% per year or about 95.68% potential over last 46 years since 1974 2020. On other hand,...

Abstract Phenomic selection is an alternative approach to genomic that uses near‐infrared spectra information predict the performance of genotypes. This research assessed effectiveness phenomic in barley ( Hordeum vulgare L.) using data from 21 trials carried out at Bekoji, Kofele, Holetta, Debre Markos, and Berhane Ethiopia 2018 2021. Fivefold cross‐validation analysis showed robust predictability for traits, ranging 0.5 0.8 days heading, maturity, plant height, 1000‐kernel weight, grain...

Research suggests that the development of micropropagated banana plants can be improved by altering nutrient concentrations in culture medium.The aim this study was to evaluate vitro exposed varying calcium and magnesium sulfate.The shoot tips cv.Prata-Anã were inoculated flasks (volume, 250 cm 3 ) containing 50 mL MS medium contained CaCl 2 (0, 220, 440, 880 mg L -1 MgSO 4 185, 370, 740 .A completely randomized experimental design employed, based on a × factorial scheme (four levels...