Open AccessAlleviation of Salinity Hazards in Different Maize Genotypes Using Inorganic Ions (Ca++ and K+)
Author(s) -
Muhammad Suhaib,
Asma Mujtaba,
Masooma Munir,
Zulfiqar Ahmad Saqib
Publication year - 2020
Publication title -
pakistan journal of scientific and industrial research. series b: biological sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.117
H-Index - 5
eISSN - 2223-2567
pISSN - 2221-6421
DOI - 10.52763/pjsir.biol.sci.63.2.2020.100.104
Subject(s) - salinity , ionic bonding , salt (chemistry) , calcium , ion , chemistry , soil salinity , inorganic ions , agronomy , crop , genotype , zoology , horticulture , biology , ecology , biochemistry , organic chemistry , gene
A hydroponic experiment was conducted to evaluate and compare the efficiency of Ca and K ions and different maize genotypes with imposed salinity. Two levels of K+ and Ca++ (5 and 10 mM) each were tested on two maize genotypes (Pioneer-3335 and Syngenta-8441) under 100 mM NaCl stress. Saline treatment adversely affected the plant physiological parameters and disturbed the ionic balance and resulted in poor plant growth. However, Syngenta-8441 was more prone to salt stress as compared to Pioneer-3335. Both of the inorganic ions showed significant effects on physiological and ionic components of both genotypes. Among the inorganic ions K was found to be more efficient than Ca in improving the plant growth. Improved physiological and ionic traits were observed more significant with 10 mM K ion treatment followed by 5 mM K. Among Ca treatments higher level of Ca (10 mM) showed more significant results as compared to 5mM Ca++. This study revealed that Ca++ and K+ both are compulsory for maintaining the crop growth because of their mutual effects under salt stress. However, the alleviative efficiency of K is far better than Calcium but its (Ca++) role could not be neglected, while regarding genotypic differential response imposes the fact that Pioneer-3335 is more tolerant to salinity menace as compared to Syngenta- 8441 but both of the genotypes were significant in their recovery from stress to applied Ca++ and K+.