Identification of QTLs associated with the anaerobic germination potential using a set of Oryza nivara introgression lines

2021 ◽  
Vol 43 (4) ◽  
pp. 399-406
Author(s):  
Licheng Liu ◽  
Xiaoxiang Li ◽  
Sanxiong Liu ◽  
Jun Min ◽  
Wenqiang Liu ◽  
...  
Keyword(s):  
Introgression Lines ◽  
Oryza Nivara ◽  
Germination Potential ◽  
Anaerobic Germination

scholarly journals Characterization of Oryza nivara introgression lines: A potential prebreeding resource to improve net photosynthetic rate in elite cultivars of rice

2019 ◽  
Vol 57 (1) ◽  
pp. 47-60
Author(s):  
G. HARITHA ◽  
T. VISHNUKIRAN ◽  
Y. RAO ◽  
CH. GOWTHAMI ◽  
B. DIVYA ◽  
...  
Keyword(s):  
Net Photosynthetic Rate ◽  
Photosynthetic Rate ◽  
Introgression Lines ◽  
Oryza Nivara

scholarly journals Improvement in anaerobic germination potential and grain yield of rice (oryza sativa) through seed priming

2019 ◽  
Vol 17 (1) ◽  
pp. 37-48
Author(s):  
S Senapati ◽  
SR Kuanar ◽  
RK Sarkar
Keyword(s):  
Seed Priming ◽  
Potassium Nitrate ◽  
Rice Seed ◽  
Sodium Peroxide ◽  
Seed Soaking ◽  
Sun Drying ◽  
Beneficial Effects ◽  
Germination Potential ◽  
Anaerobic Germination ◽  
Natural Field Condition

A field experiment was conducted during the dry season of 2014 and 2015 at National Rice Research Institute (NRRI), Orissa, India, (20.5ºN, 86°E, and 23.5 meters above mean sea level). Seed priming was employed to enhance the anaerobic germination potential in two near isogenic rice lines (IR64 and IR64-Sub1). Under natural field condition, oxygen concentration in floodwater never dropped to zero. It varied from 3.0 to 5.2 mg L-1. Seed priming with calcium peroxide and seed soaking with water followed by sun drying showed greater beneficial effects as compared to potassium nitrate. Seed priming with sodium peroxide found deleterious. Cultivar IR64-Sub1 responded well due to seed priming as compared to cultivar IR64 under submergence. To improve anaerobic germination potential in rice, seed soaking with water followed by sun drying found economicalas compared to other methods of seed priming as this technique was not linked with additional investment in chemicals and was more environments friendly. SAARC J. Agri., 17(1): 37-48 (2019

Genetic potentiality of lowland indigenous indica rice (Oryza sativa L.) landraces to anaerobic germination potential

2019 ◽  
Vol 24 (2) ◽  
pp. 249-261
Author(s):  
Jijnasa Barik ◽  
Vajinder Kumar ◽  
Sangram K. Lenka ◽  
Debabrata Panda
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Indica Rice ◽  
Germination Potential ◽  
Anaerobic Germination

Evaluation of yield and seedling vigour related traits of Swarna/ Oryza nivara backcross introgression lines under three environment conditions

2019 ◽  
Vol 11 ◽  
pp. 100036 ◽  
Author(s):  
K. Beerelli ◽  
D. Balakrishnan ◽  
M. Surapaneni ◽  
K. Addanki ◽  
Y.V. Rao ◽  
...  
Keyword(s):  
Introgression Lines ◽  
Seedling Vigour ◽  
Oryza Nivara

scholarly journals Characterization of backcross introgression lines derived from Oryza nivara accessions for photosynthesis and yield

2018 ◽  
Vol 24 (6) ◽  
pp. 1147-1164 ◽  
Author(s):  
Yadavalli Venkateswara Rao ◽  
Divya Balakrishnan ◽  
Krishnam Raju Addanki ◽  
Sukumar Mesapogu ◽  
Thuraga Vishnu Kiran ◽  
...  
Keyword(s):  
Introgression Lines ◽  
Oryza Nivara

Swarna × Oryza nivara introgression lines: a resource for seedling vigour traits in rice

2018 ◽  
Vol 17 (1) ◽  
pp. 12-23 ◽  
Author(s):  
Krishnam Raju Addanki ◽  
Divya Balakrishnan ◽  
Venkateswara Rao Yadavalli ◽  
Malathi Surapaneni ◽  
Sukumar Mesapogu ◽  
...  
Keyword(s):  
Plant Height ◽  
Association Studies ◽  
Tiller Number ◽  
Introgression Lines ◽  
Growth And Yield ◽  
Percentage Increase ◽  
Yield Traits ◽  
Seedling Vigour ◽  
Important Indicator ◽  
Oryza Nivara

AbstractSeedling vigour is an important indicator of crop establishment, subsequent crop growth and yield. Initial seedling vigour is most vital in case of water-limited conditions and in environments where the crop is exposed to different stresses at the early growth stage. Wild and weedy species are well known for their vigour and survival in adverse environmental conditions. Seedling vigour traits of backcross introgression lines (BILs) derived from Swarna × Oryza nivara IRGC81848(S) (accession from Uttar Pradesh, India) and IRGC81832 (K) (accession from Bihar, India) were studied in wet (Kharif) and dry (Rabi) seasons. Seedling vigour was estimated in terms of plant height and tiller number at 30 and 60 d after transplanting under field conditions. In both the seasons, 148S showed highest seedling vigour for plant height. The highest number of tillers were produced by 7K in Kharif and 248S in Rabi season. 75S showed the highest percentage increase in tiller number consistently. High yielding BILs 166S, 14S and 148S showed higher seedling vigour indices compared with checks Tulasi and Sahbhagidhan. Seedling vigour was also evaluated using paper roll method and shoot length, root length and dry weight were used to estimate vigour index. Season-wise association studies were conducted to determine the relative contribution of seedling vigour to yield traits. Seedling vigour was significantly correlated with yield traits. Markers RM217 and RM253 on chromosome 6 differentiated lines with high seedling vigour from those with low seedling vigour and have the potential for use in marker-assisted breeding.

scholarly journals Genotype × Environment Interactions of Yield Traits in Backcross Introgression Lines Derived from Oryza sativa cv. Swarna/Oryza nivara

2016 ◽  
Vol 7 ◽  
Author(s):  
Divya Balakrishnan ◽  
Desiraju Subrahmanyam ◽  
Jyothi Badri ◽  
Addanki Krishnam Raju ◽  
Yadavalli Venkateswara Rao ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Introgression Lines ◽  
Yield Traits ◽  
Oryza Nivara
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