Salt Tolerance of Cotton: Some New Advances

Ashraf, Muhammad

doi:10.1080/0735-260291044160

Cited by 157 publications

(92 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The important control mechanism under salt stress is the high K ' / Na ' selectivity in plants. It has been suggested to be an important selection criterion for salt tolerance (Rains 1972;Flowers et al 1977;Greenway and Munns 1980;Gorham et al 1997;Ashraf 2002;Wenxue et al 2003). A similar trend has been reported in present study with respect to Na ' and K ' content in leaf ( Figure 5).…”

Section: Resultsmentioning

confidence: 99%

Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Siddiqui

Mohammad

Khan

2009

Journal of Plant Interactions

View full text Add to dashboard Cite

Soil salinity is one of the major factors responsible for the low productivity of crop plants and has become an increasing threat for agriculture. In this context, the selection of tolerant genotype/s may be one of the remedies. Keeping this in view, the effect of NaCl (0Á120 mM) stress on shoot length (SL) plant , stomatal conductance (g s ), net photosynthetic rate (P N ), total chlorophyll (Chl) content, malondialdehyde (MDA) content, sensitivity rate index (SRI), leafnitrogen (N), potassium (K) and sodium (Na) content, leaf-K/Na ratio, nitrate reductase (NR: EC.1.6.6.1) and ATP-sulphurylase (ATP-S: EC.2.7.7.4) activities and proline (Pro) and glycinebetaine (GB) content of ten genotypes of Brassica juncea L. was studied at 55 and 65 days after sowing (DAS). NaCl treatments decreased all the above parameters, except Pro, GB, MDA, Na and SRI at both stages. Salt stress resulted in accumulation of Pro and GB, in all genotypes. The magnitude of increase in both osmolytes (Pro and GB) was higher in genotype G 8 than the other genotypes. Salt stress increased MDA and Na content while it decreased Chl, N and K content and K/Na ratio, Chl content, NR and ATP-S activities in all genotypes. But the magnitude of increase in MDA and Na content and decrease in SL plant(1 , A leaf (1 , LAI, P N , g s , Chl content and NR and ATP-S activities in genotype G 8 was more than that of other genotypes. These results suggest that the salt-tolerant genotype may have better osmotic adjustment and protection from free radicals by increasing the accumulation of Pro and GB content with overproduction of N and K and higher K/Na, NR and ATP-S activities under salinity stress.

show abstract

Section: Resultsmentioning

confidence: 99%

Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Siddiqui

Mohammad

Khan

2009

Journal of Plant Interactions

View full text Add to dashboard Cite

show abstract

“…Primitive works done ensured screening for salinity tolerance based on agronomic characters. Thus, early experiments conducted on development of salt tolerant genotypes solely relied on conventional selection and breeding techniques [5,74,[120][121][122][123][124]. which included screening at the morphological level based on several physiological and agronomical characters.…”

Section: The Implication: Screening Against Salinity Stressmentioning

confidence: 99%

Response of Rice under Salinity Stress: A Review Update

Ghosh¹,

Ali²,

Gantait³

2016

J Rice Res

View full text Add to dashboard Cite

Salinity has been a key abiotic constraint devastating crop production worldwide. Attempts in understanding salt tolerance mechanisms has revealed several key enzymes and altered biochemical pathways inferring resistance to crop plants against salt stress. The past decades have witnessed extensive research in development of salt tolerant cultivars via conventional means, improvised by modern era molecular tools and techniques. Rice (Oryza sativa L) is the staple food crop across several countries worldwide. Being a glycophyte by nature, its growth is severely imparted in presence of excess salt. Rice is susceptible to salinity specifically at the early vegetative and later reproductive stages and the response of the crop to excessive salt toxicity at biochemical and molecular level as well as physiological level is well studied and documented. An understanding of the specific response of rice to ion accumulation at the toxic level can aid in identifying the key factors responsible for retarded growth and limited production of rice with the future scope of mitigating the same. The present review summarizes the differential responses of rice, in particular, to salt toxicity enumerating the detailed morphological, physiological, biochemical and molecular changes occurring in the plant. An attempt to explain salinity tolerance and its future scope and implications in screening for salt tolerance has also been elucidated in the present study.

show abstract

“…Traits such as PHT which was having postive interaction with KNA can be utilized for indirect selection. Increased plant height may have a role in salinity tolerance as it provides more avenues in plant system for salt partitioning (Ashraf 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Correlation coefficients provide a better understanding of the association of different trait(s) with trait of interest. Maintenance of high tissue potassium/sodium and calcium/sodium ratio are considered to be important selection criteria for salt tolerance in most of the crop plants (Ashraf 2002). Previous studies on salinity tolerance of wheat mainly concentrated on yield as final selection criterion.…”

Section: Introductionmentioning

confidence: 99%

Genetic Evaluation and AMMI Analysis for Salinity Tolerance in Diverse Wheat Germplasm

Prasad

Kulshreshtha

Chinchmalatpure

et al. 2016

Cereal Research Communications

View full text Add to dashboard Cite

Soil salinity is one of the major environmental constraints in increasing agricultural crop production, especially wheat production in India. Screening of diverse germplasm in representative growing conditions is prerequisite for exploring traits with stable expression imparting salinity tolerance. A study was undertaken during 2011-2012 for characterizing wheat germplasm in three environments representing growing conditions of crop in Northern parts of India, estimating inter-relationship among traits and evaluating stability of trait conferring salinity tolerance. Significant value of mean square for observed trait across the environments signified presence of large variability in genotypes. Significant yield reduction was recorded in almost all genotypes in saline environment compared to non-saline condition. Ratio of potassium and sodium ion in leaf tissue (KNA); a key salt tolerance traits was found to be significantly correlated with biomass, SPAD value and plant height. Due to the presence of significant genotype × environment interaction (G × E) for KNA, additive main effect and multiplicative interaction (AMMI) model was utilized to study stability of KNA among genotypes and environments. IPCA1 and IPCA2 were found to be significant and explained more than 99 per cent of variation due to G × E. KRICHAUFF was having maximum trait value with specific adaptation while DUCULA 4 and KRL 19 were having general adaptability. AMMI2 biplot revealed high stability of Kharchia 65 and KRL 99 across environments. E 1 (timely sown, non-saline soil) recorded maximum site mean while E 2 (timely sown, sodic soil) was having minimum interaction with genotypes (AMMI1 = 1.383). Thus, our studies suggest that AMMI model is also useful for estimating adaptability of traits other than yield utilized for breeding salt tolerant wheat varieties.

show abstract

Salt Tolerance of Cotton: Some New Advances

Cited by 157 publications

References 81 publications

Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Response of Rice under Salinity Stress: A Review Update

Genetic Evaluation and AMMI Analysis for Salinity Tolerance in Diverse Wheat Germplasm

Contact Info

Product

Resources

About