Study of morphological diversity of traditional aromatic rice landraces (Oryza sativa L.) collected from Assam, India

Lahkar, Lipika; Tanti, Bhaben

doi:10.21746/aps.2017.6.12.9

Cited by 28 publications

(8 citation statements)

References 7 publications

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“…Yoshinaga et al (2013), suggesting that higher leaf area might be able to translocate photosynthetic products more efficiently to the panicle and helpful for better panicle growth and grain number. These findings of variations of panicle traits in the present study were also consistent with the earlier report of Kam fragrant glutinous rice (Lei et al 2018), traditional rice landraces of Assam (Lahkar and Tanti 2017) and rice diversity of global collections (Ashfaq et al 2012). Yield of rice grain is considered as important polygenic traits influenced by many phenotypic characteristics as well as environmental factors (Nakano et al 2017).…”

Section: Discussionsupporting

confidence: 93%

Genetic variability of panicle architecture in indigenous rice landraces of Koraput region of Eastern Ghats of India for crop improvement

Panda

Sahu

Behera

et al. 2020

Physiol Mol Biol Plants

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Panicle architecture is an important character that influence reproductive success and contributes directly to grain yield. In the present study, we evaluated diversity of panicle traits in 77 indigenous rice landraces from Koraput and compared with three popularity cultivated hybrid varieties of the locality for possibility of using in crop improvement program. Significant morphological variations of panicle traits such as panicle number, panicle angle, panicle weight, panicle length, grain number and grain weight were recorded in studied rice landraces. Based on the principal component analysis, first two axis of principal component captures 56.34% of the total variation and indicated significant variability of panicle traits among the genotypes. Panicle length, panicle weight, grain number and flag leaf area are the major determinants of phenotypic diversity. Multiple correlation between traits indicated that panicle weight in studied rice landraces were positively correlated with panicle number, grain number and leaf area and negatively associated with panicle length, panicle angle and chaff number. The genetic advance as percentage of mean (GAM) ranged from 22.19% for panicle length to 147.02% for panicle angle. High GAM along with heritability was observed for panicle number, panicle weight, grain number and chaff number and are important traits for selection during crop improvement. Some of the landraces such as Matidhan, Bhatagurumukhi, Chiklakoli and Kamuntana remarkably showed superior panicle weight along with higher grain number and length of panicle, which can be used in the future rice breeding program.

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Section: Discussionsupporting

confidence: 93%

Genetic variability of panicle architecture in indigenous rice landraces of Koraput region of Eastern Ghats of India for crop improvement

Panda

Sahu

Behera

et al. 2020

Physiol Mol Biol Plants

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“…2016 ), and the differentiation of aus and the morphologically diverse aromatic group ( Islam et al. 2016 ; Lahkar and Tanti 2017 ) from indica and japonica is beyond the discriminating power of rice morphometrics. These archaeobotanical limitations lend further uncertainty in the proto- indica hypothesis.…”

Section: Discussionmentioning

confidence: 99%

Origin of the Aromatic Group of Cultivated Rice (Oryza sativa L.) Traced to the Indian Subcontinent

Civáň

Ali

Batista-Navarro

et al. 2019

Genome Biology and Evolution

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The aromatic group of Asian cultivated rice is a distinct population with considerable genetic diversity on the Indian subcontinent and includes the popular Basmati types characterized by pleasant fragrance. Genetic and phenotypic associations with other cultivated groups are ambiguous, obscuring the origin of the aromatic population. From analysis of genome-wide diversity among over 1,000 wild and cultivated rice accessions, we show that aromatic rice originated in the Indian subcontinent from hybridization between a local wild population and examples of domesticated japonica that had spread to the region from their own center of origin in East Asia. Most present-day aromatic accessions have inherited their cytoplasm along with 29–47% of their nuclear genome from the local Indian rice. We infer that the admixture occurred 4,000–2,400 years ago, soon after japonica rice reached the region. We identify aus as the original crop of the Indian subcontinent, indica and japonica as later arrivals, and aromatic a specific product of local agriculture. These results prompt a reappraisal of our understanding of the emergence and development of rice agriculture in the Indian subcontinent.

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“…Duncan's multiple-range test was carried out on the percentage changes of the parameters upon arsenic treatment, using XLSTAT (ver. 2019) (Lahkar & Tanti, 2017).…”

Section: Discussionmentioning

confidence: 99%

Screening of Some Traditional Rice Cultivars of Assam, India, for Their Response to Arsenic-Induced Abiotic Stress

Kalita

Tanti

2020

Acta Agrobot

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Rice is the staple food of more than 700 million people in the world and the most important food crop in Assam, India. However, the metalloid arsenic, which is widespread in the groundwater of many parts of Assam, adversely affects the productivity of different crops, including rice. In this study, seedlings of 23 different traditional rice cultivars were subjected to 0.5 mg/L (low) and 0.8 mg/L (high) arsenic under hydroponic conditions, and various growth parameters (viz., relative water content, shoot length, root length, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, and chlorophyll a, chlorophyll b, and total chlorophyll content) were recorded. The cultivars showed varying degrees of susceptibility, as observed by the changes in the different morphological and physiological parameters under arsenic-induced stress. The calculated stress response indices revealed that the cultivar ‘Monasali’ had the best overall tolerance at the high arsenic concentration, whereas ‘Biyoi Sali,’ ‘Baismuthi,’ and ‘Bora’ were most susceptible. On the basis of these observations, ‘Monasali’ was determined as an arsenic-tolerant cultivar, but further biochemical and molecular studies are needed to verify this.

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Study of morphological diversity of traditional aromatic rice landraces (Oryza sativa L.) collected from Assam, India

Cited by 28 publications

References 7 publications

Genetic variability of panicle architecture in indigenous rice landraces of Koraput region of Eastern Ghats of India for crop improvement

Genetic variability of panicle architecture in indigenous rice landraces of Koraput region of Eastern Ghats of India for crop improvement

Origin of the Aromatic Group of Cultivated Rice (Oryza sativa L.) Traced to the Indian Subcontinent

Screening of Some Traditional Rice Cultivars of Assam, India, for Their Response to Arsenic-Induced Abiotic Stress

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