Inheritance of three agronomic characters in Lycopersicon interspecific crosses

1988 ◽  
Vol 110 (3) ◽  
pp. 471-474
Author(s):  
T. E. Yassin
Keyword(s):  
Lycopersicon Esculentum ◽  
Wild Species ◽  
Selection Criterion ◽  
Fruit Weight ◽  
Interspecific Crosses ◽  
Agronomic Characters ◽  
Yield Improvement ◽  
Plant Yield

SummaryCrosses between two cultivars of tomato (Lycopersicon esculentum Mill.), and two accessions of the wild species L. pimpinellifolium (Jusl.) Mill, were made and F1, F2 and backcross generations were developed and studied. Significant differences in number of fruits per plant, yield per plant and fruit weight were found between means of the different generations. Variation in number of fruits per plant and yield was also found between plants within generations. Number of fruits per plant was a highly heritable character (average h2 = 73·6%) and closely correlated with yield per plant, indicating that it may be a suitable selection criterion for yield improvement in tomato crosses.

scholarly journals Comparative Studies of Intra and Inter Specific Hybrid of F2 Generations in Mungbean

2020 ◽  
pp. 01-11
Author(s):  
Pandiyan M ◽  
Krishnaveni A ◽  
Sivakumar P ◽  
Vaithiyalingan M ◽  
Jamuna E ◽  
...  
Keyword(s):  
Interspecific Hybridization ◽  
Wild Species ◽  
Interspecific Hybrids ◽  
Crop Improvement ◽  
Interspecific Crosses ◽  
Single Plant ◽  
Plant Yield ◽  
Biotic Stresses ◽  
Vigna Species ◽  
Specific Hybrid

Intra and interspecific hybridization was done for developing donor with respect to MYMV and Bruchids resistance. Several differences in many characters were observed in intra and interspecific hybrids crosses for certain characters. Among all the combination of both intra and interspecific crosses studied, single plant yield increased through only intra specific crosses attempted while resistance to biotic stresses like MYMV and bruchids were improved by interspecific crosses. Hence the utilization of wild species in crop improvement is very effective for donor development compared to intra specific crosses. Keywords: Vigna radiata; Wild Vigna species Intra and Interspecific; Hybridization; Comparative Traits

scholarly journals GENETIC VARIANCES AND CORRELATIONS AMONG FRUIT QUALITY CHARACTERISTICS IN A Lycopersicon. esculentum × L. pennellii BACKCROSS POPULATION.

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 584a-584
Author(s):  
James Nienhuis ◽  
Steve Schroeder ◽  
Gretchen King
Keyword(s):  
Lycopersicon Esculentum ◽  
Water Use ◽  
Fruit Quality ◽  
Wild Species ◽  
Quality Characteristics ◽  
Fruit Weight ◽  
Broad Sense ◽  
Soluble Solids ◽  
Backcross Population ◽  
F1 Hybrid

An accession of the wild species of tomato, L. pennellii (Cor.) D'Arcy, LA 1077 is much more water-use efficient (WUE) than the cultivated tomato. The F1 hybrid between L. esculentum cultivar UC82 and LA 1077 was backcrossed to UC8 2 and selfed. S1 families (BC1S1) were evaluated for fruit quality characteristics at the Heinz Research Farm, Stockton, CA. Broad sense heritabilities were estimated as follows: Fruit weight, 0.52 ± .28; Soluble solids 0.56 ± .27; viscosity 0.63 ± .27; pH 0.43 ±.29 Color L 0.59 ± .27 and Color A/B ratio 0.50 ± .28. The following phenotypic correlations were observed in the BC1S1 generation between expression of soluble solids and fruit quality characteristics: Fruit weight (g), 0.15; viscosity, -0.65; pH -0.52; Color L, -0.53 and Color A/B ratio 0.02.

scholarly journals Evaluation of Some Selected Agronomic Characters on Yield of Chilli Cultivars/Lines Using Analysis of Covariance

2012 ◽  
Vol 37 (2) ◽  
pp. 301-306
Author(s):  
M Asif Masood ◽  
Khalid Mahmood Khokhar ◽  
Irum Raza
Keyword(s):  
Correlation Coefficient ◽  
Analysis Of Variance ◽  
Fruit Weight ◽  
Covariance Analysis ◽  
Analysis Of Covariance ◽  
Mean Square ◽  
Agronomic Characters ◽  
Plant Yield ◽  
Fruit Length ◽  
Analysis Technique

The study was carried out to see the effect of some agronomic variables on yield of chilli cultivars/lines using covariance analysis technique. Data were recorded for yield and other six agronomic variables, namely time to flowering (days), time to maturity (days), fruit weight per plant in grams, average fruit weight in grams, fruit width in centimeters, and fruit length in centimeters. Among six agronomic variables, fruit weight per plant (grams) is highly significant and linearly related to the plant yield having value of correlation coefficient (r) 0.99 whereas average fruit weight (grams) was significant at 5 percent and linearly related to the yield having correlation coefficient value 0.55. Analysis of variance (ANOVA) and analysis of covariance (ANCOVA) were run by taking fruit weight per plant (grams) as covariate. The error mean square (EMS) without covariate was 1.344 under ANOVA, while error mean square was 0.007 under ANCOVA with covariate. The results depicted that use of covariate reduced error mean square in ANCOVA. It indicated that ANCOVA is more efficient than ANOVA for improving the results of the experiment. DOI: http://dx.doi.org/10.3329/bjar.v37i2.11233 Bangladesh J. Agril. Res. 37(2): 301-306, June 2012    

scholarly journals Introgression of Resistance to Leafminer (Liriomyza cicerina Rondani) from Cicer reticulatum Ladiz. to C. arietinum L. and Relationships between Potential Biochemical Selection Criteria

Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 57
Author(s):  
Nesrine Chrigui ◽  
Duygu Sari ◽  
Hatice Sari ◽  
Tuba Eker ◽  
Mehmet Fatih Cengiz ◽  
...  
Keyword(s):  
Organic Acids ◽  
Succinic Acid ◽  
Selection Criteria ◽  
Insect Pests ◽  
Recombinant Inbred Lines ◽  
Selection Criterion ◽  
Leaf Miner ◽  
Interspecific Crosses ◽  
Visual Scale ◽  
Resistant Varieties

The chickpea leafminer, Liriomyza cicerina (Rondani), is one of the most destructive insect pests of cultivated chickpea (Cicer arietinum L.) in the Mediterranean region under field conditions. For sustainable and environmentally friendly chickpea production, efforts have been devoted to managing the leafminer via decreasing the use of insecticides. Breeding of new resistant varieties is not only an efficient and practical approach, but also cost-effective and environmentally sensitive. To improve resistant varieties, breeders need reliable biochemical selection criteria that can be used in breeding programs. The first objective was to investigate the possible introgression of resistance to the leafminer from C. reticulatum Ladiz. (resistant) to C. arietinum (susceptible), then, to estimate inheritance of resistance to the leafminer for efficient breeding strategies, and finally, to study organic acid contents as selection criteria. Recombinant inbred lines (RILs) and their parents were evaluated using a visual scale of 1–9 (1 = free from leafminer damage and 9 = mines in more than 91% of the leaflets and defoliation greater than 31%) in the field under natural infestation conditions after the susceptible parent and check had scores of >7 on the visual scale. Superior RILs were found for resistance to the leafminer, and agro-morphological traits indicating that introgression of resistance to leaf miner from C. reticulatum to C. arietinum could be possible using interspecific crosses. The inheritance pattern of resistance to the leafminer in RILs was shown to be quantitative. Organic acids, including oxalic, malic, quinic, tartaric, citric and succinic acids in RILs grown in the field under insect epidemic conditions and in the greenhouse under non-infested conditions were detected by using high performance liquid chromatography (HPLC). In general, organic acids were found to be higher in resistant RILs than susceptible RILs. Path and correlation coefficients showed that succinic acid exhibited the highest direct effects on resistance to the leafminer. Multivariate analyses, including path, correlation and factor analyses suggested that a high level of succinic acid could be used as a potential biochemical selection criterion for resistance to leafminer in chickpea. Resistant RILs with a high seed yield resembling kabuli chickpea can be grown directly in the target environments under leaf miner infestation conditions.

Genotypic selection of multispecific hybrids obtained through crosses between commercial Passiflora edulis and wild passiflora species

2021 ◽  
Vol 43 (1) ◽  
Author(s):  
Mara Cecília de Mattos Grisi ◽  
Nilton Tadeu Vilela Junqueira ◽  
Leo Duc Haa Carson Schwartzhaupt da Conceição ◽  
Fábio Gelape Faleiro ◽  
Marcelo Fideles Braga ◽  
...  
Keyword(s):  
Block Design ◽  
Fruit Weight ◽  
Passion Fruit ◽  
Simultaneous Increase ◽  
Interspecific Crosses ◽  
Breeding Programs ◽  
Passiflora Edulis ◽  
Interspecific Introgression ◽  
Randomized Block Design ◽  
Sour Passion Fruit

Abstract The interspecific introgression of resistance genes to diseases in commercial varieties through interspecific crosses has been adopted as a strategy in breeding programs of sour passion fruit. This work aimed to evaluate 11 progenies of multispecific hybrids obtained from crosses involving seven Passiflora species, in addition to four commercial cultivars, using the REML/BLUP method. The experiment was carried out as a randomized block design with six repetitions and three plants per plot. Ten fruit traits were evaluated. The additive, multiplicative, and sum of ranks indexes were applied to determine the most appropriate selective strategy in the simultaneous increase of fruit weight, number of fruits, and yield. Plants from the 325 x VAO progeny showed a lower bacterial defoliation index and better means predicted for the traits number of fruits and productivity. The progenies 325 x LD4, PL3 x LD4, and the controls CSB-Marília and BRS-Gigante Amarelo showed plants with better-predicted means for traits related to fruit quality. The genetic gains demonstrated good prospects for the use of wild species in sour passion fruit genetic breeding.

scholarly journals Effects of Salt Stress on Fruit Antioxidant Capacity of Wild (Solanum chilense) and Domesticated (Solanum lycopersicum var. cerasiforme) Tomatoes

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1481
Author(s):  
Juan Pablo Martínez ◽  
Raúl Fuentes ◽  
Karen Farías ◽  
Carolina Lizana ◽  
Juan Felipe Alfaro ◽  
...  
Keyword(s):  
Salt Stress ◽  
Antioxidant Capacity ◽  
Solanum Lycopersicum ◽  
Fruit Weight ◽  
Interspecific Crosses ◽  
Antioxidant Power ◽  
Tomato Species ◽  
In The Wild ◽  
Solanum Chilense ◽  
The Impact

The effects of salt on the quality of fruits were investigated in order to compare the impact of salt on key fruit properties of the cultivated domesticated tomato species (Solanum lycopersicum) and its wild halophyte relative Solanum chilense. To this end, cherry tomato plants (S. lycopersicum var. cerasiforme) and from accession LA4107 (S. chilense) were maintained for 112 days in the absence or presence of NaCl (40 and 80 mM) in nutrient solution. Among others, salinity decreased fruit weight and increased total soluble solid (TSS) in S. lycopersicum but not in S. chilense. The fruit antioxidant capacity estimated by ferric reducing antioxidant power (FRAP) analysis was higher in S. chilense than in S. lycopersicum and increased in the former while it decreased in the latter in response to NaCl. Salinity increased the lycopene (LYC) content but decreased ß-carotene (b-CAR) concentration in the fruits of S. lycopersicum, while these compounds were not detected in the wild halophyte S. chilense. The oxidative status of salt-treated fruits was more tightly regulated in S. chilense than in S. lycopersicum. The two considered species, however, possess complementary properties and interspecific crosses may therefore be considered as a promising option for the improvement of salt-stress resistance in tomatoes.

Soil thermal and productive responses of biodegradable mulch materials in a processing tomato (Lycopersicon esculentum Mill.) crop

Soil Research ◽  
2016 ◽  
Vol 54 (2) ◽  
pp. 207 ◽  
Author(s):  
Marta M. Moreno ◽  
Alicia Cirujeda ◽  
Joaquín Aibar ◽  
Carmen Moreno
Keyword(s):  
Lycopersicon Esculentum ◽  
Soil Temperature ◽  
Agricultural Sector ◽  
Crop Yields ◽  
Total Yield ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Barley Straw ◽  
Processing Tomato ◽  
Lycopersicon Esculentum Mill

Mulch materials of different origin and colour are available in the agricultural sector as sustainable alternatives to the use of polyethylene (PE). Mulching modifies soil temperature and consequently affects crop yields. This work assessed the thermal and productive responses of different mulch materials in two different geo-climatic conditions during a 3-year integrated field study on processing tomato (Lycopersicon esculentum Mill.). Two biodegradable plastic mulches (BD1, BD2), one oxo-degradable material (OB), two types of paper (PP1, PP2) and one barley-straw cover (BS) were compared with two control treatments: black PE and manual weeding (MW). Soil temperature variables (maximum, minimum and mean temperature, soil growing degree-days and soil temperature amplitude) and production variables (marketable and total yield, mean fruit weight) were considered. Thermally, PE could be considered an atypical mulch causing higher temperatures in the soil, but it is not associated with a higher yield. Responses of PE, PP2 and MW were independent of the geo-environmental conditions, whereas OB, BD1 and BD2 had similar thermal and productive responses to each other in different environments. Tomato yield was correlated positively only with the minimum soil temperature, especially when excluding PE.

Overcoming crossing barriers between nontuber-bearing and tuber-bearing Solanum species: towards potato germplasm enhancement with a broad spectrum of solanaceous genetic resources

Genome ◽  
1995 ◽  
Vol 38 (1) ◽  
pp. 27-35 ◽  
Author(s):  
K. N. Watanabe ◽  
M. Orrillo ◽  
S. Vega ◽  
J. P. T. Valkonen ◽  
E. Pehu ◽  
...  
Keyword(s):  
Wild Species ◽  
Embryo Rescue ◽  
Leaf Roll ◽  
Reproductive Traits ◽  
Solanum Species ◽  
Interspecific Crosses ◽  
Potato Leaf ◽  
Germplasm Enhancement ◽  
Breeding Lines ◽  
Potato Germplasm

The first direct sexual hybrids between diploid nontuber-bearing species and diploid potato breeding lines are reported here. Three nontuberous species of Solanum, S. brevidens, S. etuberosum, and S. fernandezianum, were used for sexual crosses, achieved by a combination of rescue pollinations and embryo rescue. Initial hybrid selection was made using an embryo spot marker, followed by the evaluation of morphological and reproductive traits. Putative hybrids were first tested for resistance to potato leaf roll virus derived from the wild species, and then were tested with molecular markers using species-specific DNA probes. Finally, the tuberization of several 2x hybrids was tested for actual potato germplasm enhancement. These hybrids are unique in terms of their potential to enhance recombination between chromosomes of wild species and those of cultivated potatoes in germplasm utilization, and to exploit the genetic nature of tuber formation. The finding that nontuber-bearing Solanum spp. can be directly crossed with tuber-bearing species also has important implications for the regulatory aspects of the use of genetically modified organisms.Key words: nontuber-bearing Solanum, potato germplasm enhancement, interspecific crosses, chromosome manipulation, inter-EBN crosses, diploid.

scholarly journals Assessment of Combining Ability Effects for several Yield and Quality Traits in a Complete Diallel Cross of Strawberry (Fragaria × ananassa Duch.)

2017 ◽  
Vol 45 (2) ◽  
pp. 517-524
Author(s):  
Sorin CIULCA ◽  
Natalia CARP ◽  
Emilian MADOŞA ◽  
Adriana CIULCA ◽  
Radu ŞUMĂLAN
Keyword(s):  
Combining Ability ◽  
Gene Action ◽  
Sugar Content ◽  
Fruit Weight ◽  
Yield Traits ◽  
Quality Traits ◽  
Additive Gene Action ◽  
Plant Yield ◽  
Yield And Quality ◽  
Additive Gene

Information on the inheritance of yield and quality traits is important for the selection of parents and breeding approaches to be adopted for the improvement of strawberry. The present study aimed to estimate the combining ability and gene effects for plant yield, fruits number/plant, fruit weight, pulp firmness and sugar content of strawberries in order to identify the best genitors and promising crosses, in 30 hybrids of six parents. The additive and non-additive gene action as well as the maternal effects was involved in the inheritance of the studied traits. For all traits, especially for fruit weight and plant yield, the additive gene action was more important than the non-additive one. The parents ‘A1’ and ‘Alba’ showed a higher concentration of favourable alleles for plant yield and fruits number, and they will allow the increase of plant yield when used as a donor of pollen and the increase of fruit number when used as a recipient of pollen. The variety ‘Marmolada’ was a good general combiner for sugar content, pulp firmness and fruit weight, especially when used as a female genitor. These parents could be used in hybridization in order to accelerate the genetic improvement of some yield and quality traits in strawberries. The cross ‘Mira’ × ‘Onda’ expressed desirable specific combining ability effects for yield traits and can be successfully use in strawberries breeding programs. In the case of ‘Alba’ × ‘Clery’ there is a high probability to select progenies with valuable yield traits associated with sweet fruits.

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