Root-system characteristics of plantation-grown Populus tomentosa adapted to seasonal fluctuation in the groundwater table

Trees ◽  
2017 ◽  
Vol 32 (1) ◽  
pp. 137-149 ◽  
Author(s):  
Nan Di ◽  
Yang Liu ◽  
Donald J. Mead ◽  
Yuqi Xie ◽  
Liming Jia ◽  
...  
Keyword(s):  
Root System ◽  
Seasonal Fluctuation ◽  
Populus Tomentosa ◽  
Groundwater Table ◽  
System Characteristics

Variability in Root System Characteristics of Kleingrass Seedlings 1

Crop Science ◽  
1980 ◽  
Vol 20 (3) ◽  
pp. 384-386 ◽  
Author(s):  
C. R. Rischler ◽  
R. L. Monk
Keyword(s):  
Root System ◽  
System Characteristics

scholarly journals Genetic Analysis of Strawberry Root System Traits in Fumigated and Nonfumigated Soils I. Inheritance Patterns of Strawberry Root System Characteristics

2000 ◽  
Vol 125 (3) ◽  
pp. 318-323 ◽  
Author(s):  
Sean B. Fort ◽  
Douglas V. Shaw
Keyword(s):  
Genetic Variability ◽  
Root System ◽  
Combining Ability ◽  
Root Trait ◽  
Root Mass ◽  
Soil Environment ◽  
Improvement Program ◽  
The University ◽  
System Characteristics ◽  
Interaction Variance

Seedling offspring of crosses among 10 selected strawberry genotypes (Fragari ×ananassa Duch.) from the University of California strawberry improvement program were established in annual hill culture. Soil treatments consisted of 1) preplant fumigation using a mixture of methyl bromide and chloropicrin or 2) no fumigation. Root systems of individual plants were sampled with a soil probe in January, April, and July 1994 to determine root mass (RM), secondary root mass (SRM), and a subjective root appearance score (RAS). For each trait, genetic analyses of partial diallels were performed to quantify sources of genetic, environmental, and interaction variance. Root trait values differed significantly between soil treatments only for the April sampling date, with all trait values greater in fumigated soils than in nonfumigated soils. For RM and SRM, variance due to general combining ability (GCA) was significant in April and July. Narrow-sense heritabilities (h2) for RM increased between January (0.14) and July (0.40); SRM showed a similar trend with a higher h2 on each sampling date. GCA variances were nonsignificant for RAS, however, significant fumigation × GCA interaction variance was detected for RAS in January. Specific combining ability (SCA) variances were nonsignificant for all traits. To further quantify the extent of interactions, correlations (rg) between genotypic expressions in fumigated soils and nonfumigated soils were calculated for each root trait. These rg values were at or near unity (> 0.85) for RM and SRM on all sampling dates, implying that genetic variability for these traits is conditioned by genes with identical effects within each soil environment. Conversely, rg between soil environments was 0.52, 0.62, and -0.18, for January, April, and July RAS, respectively. These findings suggest that genetic variability exists within this germplasm base for strawberry root mass characteristics. Genetic variation also exists for January root appearance score, but it is not conditioned identically across fumigation treatments.

scholarly journals The Effects of Soil Ameliorating Hydrogels on Root System Characteristics of Avena fatua in Two Different Soil Textures

2017 ◽  
Vol 21 (2) ◽  
pp. 151-164
Author(s):  
Maryam Rezashateri ◽  
Sayed Jamaleddin Khajeddin ◽  
SayedHamid Matinkhah ◽  
Mohammad Mahdi Majidi ◽  
◽  
...  
Keyword(s):  
Root System ◽  
Avena Fatua ◽  
System Characteristics

scholarly journals Root system characteristics under different water regimes in three cereal species

Plant Root ◽  
2021 ◽  
Vol 15 (0) ◽  
pp. 10-18
Author(s):  
Natsumi Ueda ◽  
Shiro Mitsuya ◽  
Akira Yamauchi ◽  
Maria Corazon J. Cabral ◽  
Mana Kano-Nakata
Keyword(s):  
Root System ◽  
Water Regimes ◽  
Cereal Species ◽  
System Characteristics
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