Effect of Presowing Seed Treatment on Growth of Weeds and Performance of Upland Rice Under Varying Weed Situations
Journal Title: International Journal of Applied and Natural Sciences - Year 2017, Vol 6, Issue 3
Abstract
Field experiments, aimed at minimizing the crop-weed competition in upland rice using non-chemical (seed invigoration) weed management practices, were carried out for two consecutive years during wet season at the research farm of Central Rainfed Upland Rice Research Station, Hazaribag, Jharkhand, India. Seed invigoration involved three thermal hardening (seeds subject to alternate temperatures; 43/28, 39/28, 35/28oC), two hormonal priming (50 and 100 ppm GA3), one nutrient priming (K-salt solution @ 4%) and one hydro priming treatment (wetting and drying).Untreated seeds were used in the control treatment for making comparison with aforesaid invigoration treatments. Two weed regimes were single and two hand weeding. Supplementary laboratory and tray studies were also carried out to optimize the seed treatments and corroborate the findings related to growth and vigor obtained from field experiments. Results revealed that thermal hardening attained subjecting seed to alternate temperatures (43/28oC), seed priming, and hormonal priming with 100 ppm GA3 proved better in weed suppression and produced higher grain yield than untreated seeds. Furthermore, integration of application of hormonal priming using GA3 @100 ppm with thermal hardening improved rice productivity by influencing growth and yield attributes of rice and reducing the weed pressure due to improved crop-competitive ability Combining seed treatment with effective weed management proved successful approach for improving rice productivity.
Authors and Affiliations
C. V SINGH, GHOSH2 B. C, R. K. SINGH
Keywords
Related Articles
- EP ID EP252360
- DOI -
- Views 118
- Downloads 0
DETERMINATION OF WATER QUALITY INDEX AND IRRIGATION SUITABILITY OF GROUNDWATER SOURCES IN PARTS OF COASTAL AQUIFERS OF EASTERN NIGER DELTA, NIGERIA
Determination of water quality index and suitability of groundwater sources in parts of Coastal Aquifers of Eastern Niger Delta Nigeria has been done to ascertain the suitability of the groundwater sources for domestic a...
Study on the Development of Stress Management Hospitalization in Childrens Preschool Intervention Tour Hospitalization
Hospitalization in children can be a traumatic experience both in children and the elderly, causing certain reactions that will adversely impact upon the cooperation of children and parents in child care, while in hospit...
Phytochemical Screening of in Vitro and in Vivo Grown Plantlets of Bacopa Monnieri L
Different types of extracts of in vivo and in vitro grown plantlets of Bacopa monnieri L. were qualitatively evaluated to identify the chemical constituents like saponins, alkaloids, resins, Quinones, tannins, phenols, f...
EXPERIMENTAL INVESTIGATION OF CI ENGINE USING BIO-DIESEL BLEND TO STUDY EMISSIONS UNDER DIFFERENT LOADING CONDITIONS
Pollution in the environment is increasing the global warming effect. We are also looking forward for alternative fuel because of increasing the demand and usage of fossil fuel. While using alternative fuel it’s also inc...
A SYSTEMATIC STUDY OF WATER POLLUTION IN JHARKHAND ON THE BASIS OF WATER QUALITY PARAMETERS
The addiction of various kinds of pollutants and nutrients through the agency of sewage, rainwater, and flood, agriculture runoff, human activities etc., into the water bodies, brings about a series of changes in the phy...