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Evaluation of Rice Genotypes for Physiological Efficiency and Productivity

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Title Evaluation of Rice Genotypes for Physiological Efficiency and Productivity
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Creator Lavanya B, Ramesh T, Sundaram RM, Ramyasri Y, Pranathi K, Koteshwar Rao P and Raghuveer Rao P
 
Subject Crop Growth Rate (CGR)
Leaf Area Index (LAI)
Total Soluble Sugars (TSS)
Harvest Index (HI)
 
Description Not Available
Pot experiment was conducted at ICAR-Indian Institute of Rice Research, Hyderabad, during Kharif 2014 to study various rice genotypes for grain yield by physiological approaches. Different parameters like Crop Growth Rate (CGR), Leaf Area Index (LAI), Total Biomass, Total Soluble Sugars (TSS), Number of productive tillers, Harvest Index (HI) and Yield were recorded. The mean values for LAI at different DAS varied from 1.0 to 3.4, 3.1 to 6.0 and 4.0 to 6.3 respectively. The average values for total biomass varied from 2.57 to 8.05 g plant-1 . Harvest index among the lines varied from 0.21 to 0.51. It was found that total soluble sugars, starch content, reducing sugars (34.0, 19.2 and 7.37 mg g -1DW), CGR (42.2 g m -2 day-1 ) and LAI (6.0) was found to be maximum in KRH2 which reflected in yield increase (33.3 g) in the hybrid. Harvest index value was found to be maximum in APMS6A X BCW56 which lead to highest grain yield (34.9 g). By physiological evaluation, it can be concluded that these genotypes can be further used in crop improvement programme
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Date 2021-08-03T08:30:12Z
2021-08-03T08:30:12Z
2018
 
Type Article
 
Identifier Lavanya, B., Thatikunta, R., Sundaram, R. M., Yemineni, R., Pranathi, K., Rao, P. K. and Rao, P. R., Evaluation of Rice Genotypes for Physiological Efficiency and Productivity, Int. J. Pure App. Biosci. 6(4): 678-682 (2018). doi: http://dx.doi.org/10.18782/2320-7051.5114
2320 – 7051
http://krishi.icar.gov.in/jspui/handle/123456789/52568
 
Language English
 
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Publisher Not Available