STRESS TOLERANCE INDICES OF MAIZE HYBRIDS IRRIGATED WITH SALINE WATER
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 1
Abstract
Salinity is one of the major abiotic stresses affecting plant growth and development as salinization of cultivated land is increasing globally due to saline water irrigation. There is a considerable variation in salinity tolerance of maize genotypes hence selection of tolerant maize hybrids to saline water irrigation is of great significance in utilising poor quality water for irrigation. The present study was conducted to identify the tolerance of maize hybrids for saline water irrigation under green house condition. Six maize hybrids were chosen and irrigated with saline water having varied inherent salinity levels (0.6, 3.2, 4.8, 6.7 and 8.9 dSm-1) and grown in a clay loam soil for 30 days. Considerable variations were observed in the plant growth attributes of maize hybrids at different salinity levels. Increasing levels of irrigation water salinity decreased the plant growth attributes, dry matter production and stress tolerance indices of all the maize hybrids. However the hybrid CO6 registered higher DMP and better stress tolerance indices. Highly significant and positive correlation between DMP and different stress indices were observed except TOL and among these indices stress tolerance index and DMP stability index has obtained highest r2 value (r2 = 0.92 and 0.90) than mean productivity, geometric mean productivity stress stability intensity for better prediction. It could be implicated in selection of irrigation water salinity tolerant maize hybrid for further development of management strategies.
Authors and Affiliations
NANDHINI DEVI BALASUBRAMANIAN, CHITDESHWARI THIYAGARAJAN
Keywords
Related Articles
- EP ID EP222814
- DOI -
- Views 155
- Downloads 0
EFFECT OF DIFFERENT STARTER CULTURE COCOA FERMENTATION APPROACHES ON THE PHYSIOCHEMICAL CHARACTERISTICS
Cocoa fermentations were performed in this study under the following experimental regimens i.e., beans naturally fermented with natural microflora, aseptically prepared beans with no inoculums and beans inoculated with d...
A Mathematical Programming Approach to Determine the Optimum Cropping Pattern: A Case Study
This study was undertaken for four medium farmers in the village Bherian, district Hisar. The crops sown by the farmers in the kharif season were cotton, guar and Jowar. The Data was collected through a pre structured sc...
PLANT GROWTH PROMOTING CHARACTERISTICS OF NON-RHIZOBIAL STRAINS ISOLATED FROM ROOT NODULES OF VIGNA TRILOBATA CULTIVARS
Rhizobacterial strains were isolated from root nodules of Vigna trilobata plants raised in soils collected from four geographically different areas in A.P. India. The strains were identified by 16Sr DNA analysis as Bacil...
Sericulture and Its Prospect in Promoting Development of Rural People of Odisha
Sericulture plays a unique role in Odisha’s economy. Its uniqueness lies in the fact that sericulture activities not only engage the households in rearing silk worms, but also encompasses the activities of reelers and we...
Yield and Nutrient Uptake by Soybean in Response to Enriched Composts Under Vertisols
Field experiment was conducted to study the effect of enriched composts like phosphocompost and nitrophospho-sulpho compost on yield and nutrient uptake by Soybean in Vertisol during kharif season of 2015-16 at Research...