Abstract:
Cotton, Gossypium hirsutum L. is one of the most important fibrecrops playing a key role in economic and social affairs of the world. Abiotic stresses such u salt excess (NaCl), drought and temperature are among factors most limiting to plant productivity Plants have to evolve strategies to survive from abiotic and biotic stresses because they cannot escape from stress by moving to places that are more favorable. The present research work was conducted to evaluate the effect of NaCl on multiple stress tolerant plants five varieties of Gossypium hirsutum L. that are important cash crop of Pakistan. Seeds of five varieties were collected from cotton center and trial was established in Botany Department of The lslamia University Bahawalpur. The Plants were kept under full Sunlight and irrigated daily till their full establishment in controlled environment. Five different levels of sodium chloride were used in present trial viz., to four replicates in each row i.e. control (without sodium chloride solution), 50mM, l00mM, l50mM, 200mM, four treatments of Sodium Chloride and one control level. These treatments were applied three times with the interval of fifteen days. After each treatment plant were allowed to survive in stress conditions in regular irrigation. The experiment was planned in completely randomized design (CRD) with two factors (five varieties of cotton with one control and four level treatment of Sodium chloride) and four replicates in each row. Samples were carefully collected to study various morpho-anatomicaI characteristics of both plant varieties. Morphological and anatomical parameters that were selected to study the effect of sodium chloride on plant which concluded that five varieties of cash crop are salinity tolerant as well as show some resistance against salt stress. As plants are tolerant, they must have developed some adaptive strategies to cope with harsh environment conditions. Generally, the effect of sodium chloride was prominent in all varieties but in the term of morpho-antornieal features, the effect was severe at 200mM level which is very high level of salt concentration and plants of five varieties not bear this concentration and effect their growth. These potential variety may contribute to Pakistan’s economy and these have significant tolerant capacity to face the harsh salinity environment.
Page(s):
148-148
DOI:
DOI not available
Published:
Journal: Abstract Book on Global Science Technology and Management Conference, Volume: 0, Issue: 0, Year: 2023