Genetic Divergence Study in Different Rice (Oryza sativa L.) Genotypes under Irrigated and Drought Stress Condition
Sirisha Bora, Manthur Sreeramulu Manjunath, Vinod Kumar, Sulochna, C. l. Maurya, Dhruvendra Singh Sachan, Ashok Kumar Koshariya
International Journal of Environment and Climate Change · pp. 61–71 · Published 20 May 2023
10.9734/ijecc/2023/v13i81931Abstract
Thirty rice genotypes were evaluated to study genetic divergence under irrigated and drought stress conditions in randomized block design at Bagusala farm, M. S. Swaminathan School of Agriculture, CUTM, Odisha, during summer 2019. The main objective of this experiment was to identify reproductive phase drought tolerant genotypes through study the effect of drought stress on yield, yield attributing and biochemical traits performance of selected genotypes using Mahalanobis D2 statistics. Set of 30 genotypes were grouped in to five and nine clusters under irrigated and drought situation. Under irrigated conditions cluster-Ⅰ was largest cluster with 22 genotypes followed by cluster-Ⅱ includes 5 genotypes cluster-Ⅲ, IV and V each consisted with only one genotype. Under drought condition, genotypes were grouped into nine different clusters, cluster-Ⅰ was the largest cluster involving 20 genotypes followed by cluster-Ⅱ having 3 genotypes whereas, cluster-Ⅲ, IV, Ⅴ, Ⅵ, Ⅶ, Ⅷ and Ⅸ were recorded with single genotype. The maximum intra cluster distances under irrigated conditions were found in cluster- Ⅱ (27111.9) followed by cluster-Ⅰ (17587.7). Whereas, in case of stress cluster-Ⅱ had maximum distance (21110.9) fallowed by cluster-Ⅰ (17957.8). Under irrigated maximum inter-cluster distances recorded between cluster-Ⅱ and Ⅴ (62310.8) followed by cluster-Ⅳ and Ⅴ (57656.0). In case of stress maximum inter cluster distances recorded between cluster -Ⅱ and Ⅶ (69865.5) fallowed by cluster- Ⅷ and Ⅸ (67848.9), cluster-Ⅱ and Ⅸ (65239.2). Under irrigate conditions highest manifestation towards genetic divergence was exhibited by chlorophyll followed by plant yield, 1000 grain weight, proline, number of spikelets, carbohydrates, grain weight, phenols, panicle length, panicle weight, flavonoids, number of filled grains, plant height and number of tillers. In case of drought stress, maximum percentage contribution towards to the genetic divergence was observed for Proline followed by carbohydrates, plant height, plant yield, grain weight, chlorophyll, number of spikelets, flavonoids, 1000grain weight, filled grains, phenols, panicle weight, panicle length and number of tillers, while other trait like root length did not contribute to the total divergence. The genotypes grouped under cluster Ⅰ, Ⅲ, Ⅴ, Ⅷ namely MTU1010, MTU1075, MTU1224, RNR2465 and Manipur black rice exhibited maximum drought tolerance under stress conditions. These genotypes can be used as the donor parents for development of drought tolerant lines in crop improvement programme.
References (15)
- 1 The determination of flavonoid contents in mulberry and their scavenging effects on superoxide radicals [DOI]
- 2 On the generalized distance in statistics
- 3 Plant enzymology and histo-enzymology
- 4 Differential sensitivity of C3 and C4 plants to water deficit stress: Association with oxidative stress and antioxidants [DOI]
- 5 Evaluation of Chlorophyll Content and Fluorescence Parameters as Indicators of Drought Tolerance in Barley [DOI]
- 6 Carbohydrate Chemistry [DOI]
- 7 Physiological responses of three maize cultivars to drought stress and recovery [DOI]
- 8 Breeding for drought tolerance: Direct selection for yield, response to selection and use of drought-tolerant donors in upland and lowland-adapted populations [DOI]
- 9 Photochemical responses and oxidative stress in two clones of Coffea canephora under water deficit conditions [DOI]
- 10 Photosynthesis and PSII functionality of drought-resistant and drought-sensitive weeping lovegrass plants [DOI]
- 11 Tolerance of photosynthesis to photoinhibition, high temperature and drought stress in flag leaves of wheat: A comparison between a hybridization line and its parents grown under field conditions [DOI]
- 12 Photochemical and Antioxidant Responses in the Leaves of Xerophyta viscosa Baker and Digitaria sanguinalis L. under Water Deficit [DOI]
- 13 Genetic Variability Parameters for Yield and Yield Related Traits in Rice (Oryza sativa L.) under Irrigated and Drought Stress Condition [DOI]
- 14 Genetic Diversity and Screening of Rice (Oryza sativa L.) Genotypes for Drought Tolerance at Reproductive Phase [DOI]
- 15 Genetic divergence among rice genotypes for drought tolerance
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