Screening of local/exotic accessions of lentil (Lens culinaris Medic.) for salt tolerance at two growth stages

In a 2-yr study, residues of diquat were spectrophotometrically determined in lentil (Lens culinaris Medik.) seed and straw/chaff following preharvest treatment using 0.56 kg ha−1 at three crop growth stages. Diquat residues ranged from 12.9 to 17.3 mg kg−1 in the lentil straw/chaff one day after application and decreased to 1.1 to 6.0 mg kg−1 2 wk later. Diquat residues in the seed were in the order of 0.05 mg kg−1 or less regardless of time of sampling after spraying or growth stage of the crop at application. The limit of quantification of the analytical method was 0.04 mg kg−1, and recoveries of diquat from fortified seed and straw were in the order of 70%. Key words: Diquat, lentil, residues, spectrophotometric determination

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Variation in salinity tolerance, early shoot mass and shoot ion concentrations within Lotus tenuis: towards a perennial pasture legume for saline land

Crop and Pasture Science ◽

10.1071/cp09318 ◽

2010 ◽

Vol 61 (5) ◽

pp. 379 ◽

Cited By ~ 11

Author(s):

N. L. Teakle ◽

A. Snell ◽

D. Real ◽

E. G. Barrett-Lennard ◽

T. D. Colmer

Keyword(s):

Salt Tolerance ◽

Salinity Tolerance ◽

Nutritive Value ◽

Screening Method ◽

Trifolium Subterraneum ◽

Dry Mass ◽

Growth Stages ◽

Lotus Tenuis ◽

Pasture Legumes ◽

Shoot Mass

Perennial legumes are needed for productive pastures in saline areas. We evaluated 40 lines of Lotus tenuis for tolerance to salinity at both germination and vegetative growth stages. Salt tolerance during the early vegetative stage was assessed in a sand-tank experiment with NaCl concentrations of 0–450 mm NaCl for 5 weeks. Most L. tenuis lines were more salt tolerant and had at least 50% lower shoot Na+ plus Cl– (% dry mass (DM)) compared with some other common pasture legumes, Medicago sativa, M. polymorpha and Trifolium subterraneum. Within L. tenuis significant variation in salt tolerance was found, with C50 values (concentrations of NaCl that decreased shoot dry matter to 50% of control) ranging from ~100 to 320 mm. Shoot concentrations of Cl–, Na+ and K+ did not always correlate with salt tolerance; some tolerant lines had low shoot Na+ and Cl– (and thus better nutritive value), while others tolerated high shoot Na+ and Cl–. We also found variation within L. tenuis for salt tolerance of seeds, with lines ranging from 0 to 70% germination after recovery from a prior exposure to 800 mm NaCl for 15 days. There was no relationship between salinity tolerance of scarified seeds and subsequent growth of seedlings; therefore, testing of seeds alone would not be an appropriate screening method for salt tolerance in L. tenuis. This study of 40 L. tenuis lines has shown significant genetic variation for salt tolerance within this species, and we have identified key lines with potential to be productive in saltland pasture systems.

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Screening for Salt Tolerance in Eight Halophyte Species from Yellow River Delta at the Two Initial Growth Stages

ISRN Agronomy ◽

10.1155/2013/592820 ◽

2013 ◽

Vol 2013 ◽

pp. 1-8 ◽

Cited By ~ 7

Author(s):

Liu Xianzhao ◽

Wang Chunzhi ◽

Su Qing

Keyword(s):

Salt Tolerance ◽

Yellow River ◽

Germination Rate ◽

Yellow River Delta ◽

River Delta ◽

Suaeda Salsa ◽

Growth Stages ◽

Initial Growth ◽

Sesbania Cannabina ◽

Tamarix Chinensis

Screening of available local halophytes for salinity tolerance is of considerable economic value for the utilization of heavy salt-affected lands in coastal tidal-flat areas and other saline areas. In this study, the germination and seedling pot experiments on salt tolerance of eight halophytic species from Yellow River Delta, China, at seven NaCl concentrations (0, 50, 100, 150, 200, 250, and 300 mM), were conducted at both growth stages. Results showed that germination rate and germination index decreased with an increase in NaCl concentration. The higher germination rates were obtained from Tamarix chinensis and Suaeda salsa seeds exposed to 0~200 mM NaCl. At the seedling stage, the salt tolerances of eight halophytes were also different from each other. Tamarix chinensis had significantly greater fresh biomass and plant height in relative terms than the others in all salt treatments. The order of the relative growth yield in seedling was Tamarix chinensis > Suaeda salsa > Salicornia europaea > Limonium bicolor > Atriplex isatidea > Apocynum venetum > Phragmites australis > Sesbania cannabina. The comprehensive analysis showed that Tamarix chinensis had the highest tolerance to salt, followed by Suaeda salsa, and the salt tolerance of Sesbania cannabina was the lowest.

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Root plasticity improves salt tolerance in different genotypes of lentil (Lens culinaris)

Ecological Questions ◽

10.12775/v10090-011-0027-2 ◽

2011 ◽

Vol 14 ◽

pp. 95 ◽

Cited By ~ 3

Author(s):

Maria Rosaria Panuccio ◽

Barbara Logoteta ◽

F. De Lorenzo ◽

Adele Muscolo

Keyword(s):

Salt Tolerance ◽

Lens Culinaris ◽

Root Plasticity

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Variability for salt tolerance in a collection of Panicum coloratum var. makarikariense during early growth stages

Tropical Grasslands - Forrajes Tropicales ◽

10.17138/tgft(6)134-147 ◽

2018 ◽

Vol 6 (3) ◽

pp. 134-147 ◽

Cited By ~ 1

Author(s):

Luisina Cardamone ◽

Alejandra Cuatrín ◽

Karina Grunberg ◽

María A. Tomás

Keyword(s):

Salt Tolerance ◽

Abiotic Factors ◽

Perennial Grass ◽

Germination Percentage ◽

Parent Material ◽

Growth Stages ◽

Forage Production ◽

Physiological Variables ◽

Panicum Coloratum ◽

Mean Germination Time

Our aim was to investigate variability for salt tolerance in a collection of Panicum coloratum var. makarikariense of INTA EEA Rafaela, Argentina. Panicum coloratum is a C4 perennial grass to be potentially used to increase forage production in areas affected by abiotic factors which reduce their productivity. We evaluated the response of half-sib families from different accessions to increasing salt concentrations under growth chamber conditions. Germination percentage (GP), GP (% of control) and index of germination decreased with increasing salinity, while mean germination time increased (P˂0.001). After being exposed to saline conditions ungerminated seeds were able to recover in distilled water and many germinated. Salt tolerance was more variable between families within accessions than between accessions in all evaluated variables. At the seedling stage, morphological and physiological variables allowed differentiation among families on the basis of salt tolerance. Molecular characterization by ISSR molecular markers demonstrated variability within parent material and grouped families by accessions. A positive but low correlation between morphological and molecular distances was detected (r = 0.24; P = 0.032). Nonetheless, even after selection, enough molecular variability remained within tolerant families grouped by principal components analysis. In summary, materials of P. coloratum var. makarikariense from INTA EEA Rafaela showed both morphological and genetic variability for salinity tolerance and the contrasting genotypes could be used as parent materials to conduct breeding studies to improve salt tolerance in this species.

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Comprehensive Evaluation of Salt Tolerance in Asparagus Germplasm Accessions (Asparagus officinalis L.) at Different Growth Stages

Journal of Food Quality ◽

10.1155/2021/6626112 ◽

2021 ◽

Vol 2021 ◽

pp. 1-10

Author(s):

Huimin Gao ◽

Xuhong Zhang ◽

Yuqin Liang ◽

Lingdi Dong ◽

Changzhi Han ◽

...

Keyword(s):

Salt Tolerance ◽

Adult Stage ◽

Seedling Stage ◽

Asparagus Officinalis ◽

Growth Stages ◽

Salt Tolerant ◽

Aboveground Part ◽

The Mean ◽

Germplasm Accessions ◽

Germination Stage

The screening and cultivation of salt-tolerant crops are becoming more and more important owing to the constant increase in the saline soil area worldwide. Asparagus (A. officinalis L.) is a highly nutritious vegetable crop and widely consumed globally for a long time; however, little research has been done on asparagus. In this study, the salt tolerance of 95 asparagus germplasm accessions was evaluated at three growth stages (germination, seedling, and adult stages) under both salt-stressed and control conditions. Results showed that the growth parameters of most germplasm accessions were obviously inhibited by salt stress. The mean value of the seed germination rate at the germination stage decreased by half under salt-stressed conditions, the mean salt-injury index at the seedling stage reached 57.68%, and the fresh weight of the aboveground part (FWA) and the dry weight of the aboveground part (DWA) decreased the most among the traits determined at the adult stage by more than 60%. Our study screened out 30, 19, and 18 tolerant germplasm accessions (including highly salt-tolerant and salt-tolerant germplasm accessions) at the germination stage, seedling stage, and adult stage, respectively. Among them, two germplasm accessions (Ji08-2 and Jx1502) were simultaneously identified to be tolerant in all three growth stages, while other germplasm accessions were tolerant only at one or two stages. Thus, the salt tolerance of asparagus has periodic characteristics and changes throughout the lifecycle, and the identification of salt tolerance at all the main growth stages facilitates adequate assessment and application of tolerant germplasm accessions.

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