Automated Organization Profile

ICAR Research Complex for North Eastern Hill Region

Current S-Index

0.5

Sum of Dataset Indices for all datasets

Average Dataset Index per Dataset

0.5

Average Dataset Index per dataset

Total Datasets

1

Total datasets in this organization

Average FAIR Score

50.0%

Average FAIR Score per dataset

Total Citations

0

Total citations to the organization's datasets

Total Mentions

0

Total mentions of the organization's datasets

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S-Index Over Time

Cumulative Citations Over Time

Cumulative Mentions Over Time

Datasets

Rice breeding for yield under drought has selected for longer flag leaves and lower stomatal density (Version: 1.0)

Direct selection for yield under drought has resulted in the release of a number of drought-tolerant rice varieties across Asia.In this study, we characterized the physiological traits that have been affected by this strategy in breeding trials across sites inBangladesh, India, and Nepal. Drought- breeding lines and drought-tolerant varieties showed consistently longer flag leavesand lower stomatal density than our drought-susceptible check variety, IR64. The influence of environmental parameters otherthan drought treatments on leaf traits was evidenced by close grouping of treatments within a site. Flag-leaf length and widthappeared to be regulated by different environmental parameters. In separate trials in the Philippines, the same breeding linesstudied in South Asia showed that canopy temperature under drought and harvest index across treatments were most correlatedwith grain yield. Both atmospheric and soil stress strengthened the relationships between leaf traits and yield. The stableexpression of leaf traits among genotypes and the identification of the environmental conditions in which they contribute toyield, as well as the observation that some breeding lines showed longer time to flowering and higher canopy temperaturethan IR64, suggest that selection for additional physiological traits may result in further improvements of this breeding pool.

Authors

  • Kumar, Santosh ;
  • Tripathi, Santosh ;
  • Singh, Suresh Prasad ;
  • Prasad, Archana ;
  • Akter, Fahamida ;
  • Syed, Md. Abu ;
  • Badri, Jyothi ;
  • Das, Sankar Prasad ;
  • Natividad, Mignon ;
  • Quintana, Marinell ;
  • Venkateshwarlu, Challa ;
  • Raman, Anitha ;
  • Yadav, Shailesh ;
  • Singh, Shravan K. ;
  • Swain, Padmini ;
  • Anandan, Annamalai ;
  • Yadaw, Ram Baran ;
  • Mandal, Nimai P ;
  • Verulkar, Satish B ;
  • Kumar, Arvind ;
  • Henry, Amelia
0 Citations0 Mentions50% FAIR0.5 Dataset Index
10.7910/dvn/h9bao2January 2022