Record Details

STUDIES ON CROP WEATHER RELATIONSHIPS OF RICE CROP UNDER RAIPUR CONDITION

KrishiKosh

View Archive Info
 
 
Field Value
 
Title STUDIES ON CROP WEATHER RELATIONSHIPS OF RICE CROP UNDER RAIPUR CONDITION
 
Creator Jain, Anshul
 
Contributor Chaudhary, J.L.
Puranik, H.V.
Saxena, R.R.
Sonboir, H.L.
 
Subject CROP WEATHER RELATIONSHIPS,RICE CROP,RAIPUR
Agrometerology
 
Description A field experiment was carried out during kharif season of 2015-16 at Indira Gandhi Krishi Vishwavidyalaya, Raipur to validate the results of crop weather relationship of different rice varieties grown under different thermal environments. The treatment combinations include three growing environments (01 June, 15 June, and 30 June) with three varieties Swarna (National check), Mahamaya, MTU-1010 were laid in a Factorial randomized block design with three replications, One treatment of under dose in Swarna variety 60:40:40 also included for comparison. The yield prediction of rice (Oryza sativa L.) on weather basis was used as a model to investigate the prominent meteorological parameters that contribute final rice yield. A decadal based weather data from 2006-2015 for kharif season (June to November) has been fed as input for the model with rice yield data (Kg/ha) as dependant variable. A linear correlation analysis has found that at tillering stage there is negative relationship significant at
5% level for maximum and minimum temperature. Negative correlation with grain yield at 50% flowering stage has been found with maximum temperature (at 1% level of significance) and rainfall (at 5% level of significance). However, dough stage was strong negatively correlated (1% level) with rainfall. An effort has been made to find out the most sensitive stages to different weather parameters through linear regression model. Phenological stages weather parameters influencing yield of rice crop variety Mahamaya have been analyzed through linear regression models between the yield over three growing environments and ten years of experimentation (2006-2015). For maximum temperature significant stages are found to be seedling, tillering, 50% flowering and maturity. The minimum temperature under Raipur condition was not a constraint for rice production (Mahamaya variety) as at only one stage (tillering stage) has been found to be affecting the rice production. When the role of rainfall in linear regression analysis (var. Mahamaya) was studied, it was found that rainfall at tillering, 50% flowering stage and milking stage are positively and significantly contributing for rice grain yield. As regards to sunshine hours where only two stages are negatively significant at seedling stage and 50% flowering stages. Rest of all stages were not at all significant at 5% level.
After data analysis by SPSS and MS-Excel, three weather parameters are found to be the most significant parameters for yield prediction of rice in Raipur. The accuracy rate remained generally above 95% in experiment and present analysis of validation of regression model indicates only once in 2015-2016 this remained 88% or error is -11.91% by MS-Excel. The weather parameters taken into account for yield prediction variations in maximum temperature, rainfall during 50% flowering stage and maximum temperature, minimum temperature during tillering stage and rainfall during dough stage. Significantly maximum grain yield was obtained in late growing environment (D3) which is significantly higher as compared to early growing environments. Sowing of rice on 15 June and 30 June being at par to each other produced significant higher grain yield as compared to 01 June sowing. The lowest grain yield was recorded with sowing of rice on 1 June. On an average significant higher grain yield was obtained in variety Swarna followed by Mahamaya whereas, the lower grain yield was recorded in variety MTU-1010.
 
Date 2016-12-16T12:04:38Z
2016-12-16T12:04:38Z
2016
 
Type Thesis
 
Identifier 88 p.
http://krishikosh.egranth.ac.in/handle/1/90549
 
Language en
 
Format application/pdf
 
Publisher Indira Gandhi Krishi Vishwavidyalaya, Raipur