STUDIES ON PHYSIOLOGICAL PARAMETERS IN AROMATIC RICE DURING KHARIF
KrishiKosh
View Archive InfoField | Value | |
Title |
STUDIES ON PHYSIOLOGICAL PARAMETERS IN AROMATIC RICE DURING KHARIF
|
|
Creator |
MAHESH KUMAR, MEHTA
|
|
Contributor |
NARENDER REDDY, S.
|
|
Subject |
rice, developmental stages, genotypes, yields, grain, aromatic compounds, biological development, planting, area, leaf area
PHYSIOLOGICAL PARAMETERS, AROMATIC RICE, , KHARIF |
|
Description |
The present investigation entitled “studies on physiological parameters in aromatic rice during kharif” was conducted at the Students Farm, College of Agriculture, Rajendranagar, Hyderabad, during kharif 2010-2011. The field trial was conducted following randomized block design with three replications and eight aromatic rice genotypes viz. PUSA-1121, Chittimuthyalu, Godavari Isukalu, RNR-19186, RNR-2378, RNR-2354, RNR-2465 and Sumathi. In this experiment, the morphological traits such as plant height, tillering capacity, number of leaves and root parameters and physiological indices such as LAI, CGR, NAR, RGR, LAD, AGR, LAR, SLW and SLA were evaluated at 15 days interval. Phenological parameters were taken such as days to 50% flowering, days to complete flowering and days to maturity and morphological indices (flag leaf area) were evaluated at flowering stage. Results of morphological characteristics showed that highest and lowest plant heights were recorded in Chittimuthyalu and RNR 2378, respectively. Maximum number of tillers and number of leaves were recorded by variety RNR 2354. Root parameters like root length, root volume and root weight were highest in the variety RNR 2354 and lowest in Pusa1121. There was significant positive correlation between tiller number and root parameters with grain yield. More number of days to 50% flowering, days to complete flowering and days to maturity were recorded for the variety Sumathi and minimum in Chittimuthyalu. Combined leaf area of first three leaves from the top found significantly different for all aromatic rice cultivars and maximum combined leaf area of first three leaves from the top was found in the variety RNR 2354 and minimum was recorded by the variety Pusa1121. Results showed that maximum LAI, CGR, NAR, RGR, LAD, LAR and SLW were recorded for the variety RNR 2354. Highest AGR was recorded with variety Chittimuthyalu and lowest was recorded with RNR 2354 and RNR 2465. Highest SLA was recorded in RNR 2378 and minimum SLA was recorded in RNR 2354. Yield was significantly and positively correlated with LAI, CGR, NAR, RGR, LAD and SLW. Thus the highest dry matter production was recorded in variety RNR 2354 while minimum dry matter production was recorded for the variety Pusa 1121. Maximum SPAD values were recorded for variety RNR 2354 throughout the crop growth period and minimum was found for the variety Chittimuthyalu whereas harvest index and nitrogen harvest index were recorded maximum in the variety RNR 2354 and minimum in Pusa 1121. Harvest index, Flag leaf area and SPAD values were positively associated with grain yield in aromatic rice. Highest grain yield was recorded in variety RNR 2354 and the lowest grain yield was recorded in Pusa 1121. The aromatic rice varieties differed significantly with respect to yield and yield components like number of panicles per meter square, number of spikelets per panicle, 1000 grain weight, filled grain percentage and harvest index which were significantly and positively associated with grain yield. |
|
Date |
2016-05-31T11:34:02Z
2016-05-31T11:34:02Z 2011 |
|
Type |
Thesis
|
|
Identifier |
http://krishikosh.egranth.ac.in/handle/1/66471
|
|
Language |
en
|
|
Format |
application/pdf
|
|
Publisher |
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY
|
|