EVALUATION OF THE GENETIC VARIATION FOR SOME GENOTYPES IN COTTON (GOSSYPIUM BARBADENSE L.) TO WATER STRESS

2018 ◽  
Vol 3 (2) ◽  
pp. 165-186
Author(s):  
M.A.A. El- Dahan ◽  
A.B.A. El- Fesheikawy ◽  
Y.I.M. AL- Hibbiny
Keyword(s):  
Genetic Variation ◽  
Water Stress ◽  
Gossypium Barbadense

scholarly journals ESTIMATION OF GENETIC VARIABILITY IN SOME COTTON CROSSES (Gossypium barbadense L.) UNDER WATER STRESS.

2012 ◽  
Vol 3 (6) ◽  
pp. 1017-1026
Author(s):  
M. Abd El-Aty ◽  
H. Hamoud ◽  
A. Omar ◽  
H. Turkey
Keyword(s):  
Water Stress ◽  
Genetic Variability ◽  
Gossypium Barbadense

Genetic variation in sugarcane for leaf functional traits and relationships with cane yield, in environments with varying water stress

2017 ◽  
Vol 213 ◽  
pp. 143-153 ◽  
Author(s):  
Peifang Zhao ◽  
P.A. Jackson ◽  
J. Basnayake ◽  
Jiayong Liu ◽  
Xuekuan Chen ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Water Stress ◽  
Functional Traits ◽  
Cane Yield ◽  
Leaf Functional Traits

scholarly journals Sugarcane for water-limited environments. Genetic variation in cane yield and sugar content in response to water stress

2012 ◽  
Vol 63 (16) ◽  
pp. 6023-6033 ◽  
Author(s):  
J. Basnayake ◽  
P. A. Jackson ◽  
N. G. Inman-Bamber ◽  
P. Lakshmanan
Keyword(s):  
Genetic Variation ◽  
Water Stress ◽  
Sugar Content ◽  
Cane Yield ◽  
Response To Water

scholarly journals Genetic variation in LBL1 contributes to depth of leaf blades lobes between cotton subspecies, Gossypium barbadense and Gossypium hirsutum

2018 ◽  
Vol 17 (11) ◽  
pp. 2394-2404 ◽  
Author(s):  
Dao-fang HE ◽  
Xiang ZHAO ◽  
Cheng-zhen LIANG ◽  
Tao ZHU ◽  
Muhammad Ali Abid ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Gossypium Hirsutum ◽  
Gossypium Barbadense

scholarly journals Genetic behavior for some quantitative traits in cotton (Gossypium barbadense L.) under water stress conditions

2021 ◽  
Author(s):  
Esmaeel Z.F Abo Sen ◽  
Mohamed A.A El-Dahan ◽  
Shaimaa A. Tantawy ◽  
Youssef.S. Katta ◽  
Bandar S. Aljuaid ◽  
...  
Keyword(s):  
Water Stress ◽  
Quantitative Traits ◽  
Gossypium Barbadense ◽  
Stress Conditions

scholarly journals Genetic Variation in Drought-Tolerance Traits and Their Relationships to Growth in Pinus radiata D. Don Under Water Stress

2022 ◽  
Vol 12 ◽  
Author(s):  
Ahmed Ismael ◽  
Jianming Xue ◽  
Dean Francis Meason ◽  
Jaroslav Klápště ◽  
Marta Gallart ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Water Stress ◽  
Genetic Correlations ◽  
Best Linear Unbiased Prediction ◽  
Linear Unbiased Prediction ◽  
Breeding Programs ◽  
Water Stress Tolerance ◽  
Drought Tolerant ◽  
Best Linear Unbiased ◽  
Selection Of

The selection of drought-tolerant genotypes is globally recognized as an effective strategy to maintain the growth and survival of commercial tree species exposed to future drought periods. New genomic selection tools that reduce the time of progeny trials are required to substitute traditional tree breeding programs. We investigated the genetic variation of water stress tolerance in New Zealand-grown Pinus radiata D. Don using 622 commercially-used genotypes from 63 families. We used quantitative pedigree-based (Genomic Best Linear Unbiased Prediction or ABLUP) and genomic-based (Genomic Best Linear Unbiased Prediction or GBLUP) approaches to examine the heritability estimates associated with water stress tolerance in P. radiata. Tree seedling growth traits, foliar carbon isotope composition (δ13C), and dark-adapted chlorophyll fluorescence (Y) were monitored before, during and after 10 months of water stress. Height growth showed a constant and moderate heritability level, while the heritability estimate for diameter growth and δ13C decreased with water stress. In contrast, chlorophyll fluorescence exhibited low heritability after 5 and 10 months of water stress. The GBLUP approach provided less breeding value accuracy than ABLUP, however, the relative selection efficiency of GBLUP was greater compared with ABLUP selection techniques. Although there was no significant relationship directly between δ13C and Y, the genetic correlations were significant and stronger for GBLUP. The positive genetic correlations between δ13C and tree biomass traits under water stress indicated that intraspecific variation in δ13C was likely driven by differences in the genotype’s photosynthetic capacity. The results show that foliar δ13C can predict P. radiata genotype tolerance to water stress using ABLUP and GBLUP approaches and that such approaches can provide a faster screening and selection of drought-tolerant genotypes for forestry breeding programs.

Genetic Variation in Carbon Isotope Discrimination and Its Relation to Stomatal Conductance in Pima Cotton (Gossypium barbadense)

1996 ◽  
Vol 23 (2) ◽  
pp. 127 ◽  
Author(s):  
Zhenmin Lu ◽  
Jiwei Chen ◽  
RG Percy ◽  
MR Sharifi ◽  
PW Rundel ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Stomatal Conductance ◽  
Heat Resistance ◽  
Carbon Isotope ◽  
Carbon Isotope Discrimination ◽  
Stable Carbon Isotope ◽  
Gossypium Barbadense ◽  
High Irradiance ◽  
Isotope Discrimination ◽  
Selection For

Stable carbon isotope discrimination (Δ) was evaluated in primitive and cultivated Gossypium barbadense L. Significant differences among cultivated Pima lines were positively associated with the degree of selection for lint yield and heat resistance. A population mean study of a cross between B368, a primitive, uncultivated G. barbadense, and Pima S-6, an advanced line, showed that Δ is probably under genetic control, and could be a suitable selection trait in breeding programs. Eleven uncultivated accessions of primitive G. barbadense of varying origins grown in one environment showed a broad range of Δ values (18.8-20.50), pointing to substantial genetic variation of Δ in the G. barbadense germplasm. A was strongly correlated with stomatal conductance (gs) in the commercial lines, a segregating F2 population of the B368 × Pima S-6 cross, and the collection of uncultivated G. barbadense. This relationship indicates that variation in gs is the main source of variation for Δ in both uncultivated and commercial G. barbadense. The positive correlation between Δ, gs and yield in the commercial Pima lines provides further evidence for selection pressures on higher gs ensuing from selection for higher yield and heat resistance. Selection for higher Δ could increase yield in crops grown in hot, high irradiance, and well-irrigated environments.

Sign in / Sign up

Export Citation Format

Share Document