Your browser doesn't support javascript.
loading
Discerning morpho-anatomical, physiological and molecular multiformity in cultivated and wild genotypes of lentil with reconciliation to salinity stress.
Singh, Dharmendra; Singh, Chandan Kumar; Kumari, Shanti; Singh Tomar, Ram Sewak; Karwa, Sourabh; Singh, Rajendra; Singh, Raja Bahadur; Sarkar, Susheel Kumar; Pal, Madan.
Afiliação
  • Singh D; Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.
  • Singh CK; Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.
  • Kumari S; Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.
  • Singh Tomar RS; ICAR-National Research Centre on Plant Biotechnology, Pusa Campus, New Delhi, India.
  • Karwa S; Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India.
  • Singh R; Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, India.
  • Singh RB; ICAR-All India Co-ordinated Research Project on Salt affected Soil and Saline Use in Irrigation Water in Agriculture, Raja Balwant Singh College, Bichpuri, Agra, India.
  • Sarkar SK; ICAR-Indian Agricultural Statistical Research Institute, New Delhi, India.
  • Pal M; Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India.
PLoS One ; 12(5): e0177465, 2017.
Article em En | MEDLINE | ID: mdl-28542267
ABSTRACT
One hundred and sixty two genotypes of different Lens species were screened for salinity tolerance in hydroponics at 40, 80 and 120 mM sodium chloride (NaCl) for 30 d. The germination, seedling growth, biomass accumulation, seedling survivability, salinity scores, root and shoot anatomy, sodium ion (Na+), chloride ion (Cl-) and potassium ion (K+) concentrations, proline and antioxidant activities were measured to evaluate the performance of all the genotypes. The results were compared in respect of physiological (Na+, K+ and Cl-) and seed yield components obtained from field trials for salinity stress conducted during two years. Expression of salt tolerance in hydroponics was found to be reliable indicator for similarity in salt tolerance between genotypes and was evident in saline soil based comparisons. Impressive genotypic variation for salinity tolerance was observed among the genotypes screened under hydroponic and saline field conditions. Plant concentrations of Na+ and Cl- at 120 mM NaCl were found significantly correlated with germination, root and shoot length, fresh and dry weight of roots and shoots, seedling survivability, salinity scores and K+ under controlled conditions and ranked the genotypes along with their seed yield in the field. Root and shoot anatomy of tolerant line (PDL-1) and wild accession (ILWL-137) showed restricted uptake of Na+ and Cl- due to thick layer of their epidermis and endodermis as compared to sensitive cultigen (L-4076). All the genotypes were scanned using SSR markers for genetic diversity, which generated high polymorphism. On the basis of cluster analysis and population structure the contrasting genotypes were grouped into different classes. These markers may further be tested to explore their potential in marker-assisted selection.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Estresse Fisiológico / Cloreto de Sódio / Lens (Planta) / Tolerância ao Sal Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Índia

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Estresse Fisiológico / Cloreto de Sódio / Lens (Planta) / Tolerância ao Sal Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Índia