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Table 2 Detail of the experiments conducted and traits measured during 2015WS and 2016DS under dry direct seeded conditions

From: Genome-wide association study reveals significant genomic regions for improving yield, adaptability of rice under dry direct seeded cultivation condition

SN

Year/ Season

Date of seeding

No. of Entries

Parents and checksa

Observed traits

1

2015WS

June 18, 2015

500 (450 + 50)

NSICRc 222, IR 87707–446-B-B, IR 74371–54–1-1, Vandana/Kali Aus,

IR 94225-B-82-Ba

IR 94226-B-177-Ba

IR 91648-B-32-Ba

IR 91648-B-153-Ba

IR 91648-B-230-Ba

days to first emergence, days to full emergence, number of nodal roots at 15 DAS, number of nodal roots at 22 DAS, number of nodal roots at 29 DAS, maximum root length (cm) at 15 DAS, maximum root length (cm) at 22 DAS, maximum root length (cm) at 29 DAS, dry shoot weight at 15 DAS (g), dry shoot weight at 22 DAS (g), dry shoot weight at 29 DAS (g), relative growth rate from 15 to 22 DAS, relative growth rate from 22 to 29 DAS, relative growth rate from 15 to 29 DAS, root hair length, root hair density, flag leaf length, flag leaf width, flag leag area, Flag leaf angle, leaf color chart, cholorophyll content (SPAD), stem diameter, culm diameter, bending strength (kg cm), bending moment (kg cm2), plant height (cm), days to 50% flowering, biomass at 50% flowering (g), vegetative vigor score, number of productive tillers per plant, panicle length (cm), number of filled grains/panicle, 1000 grain weight (g), straw yield (kg ha− 1), grain yield (kg ha− 1), N uptake (kg ha− 1), P uptake (kg ha− 1), Fe uptake (kg ha− 1), Zn uptake (kg ha− 1)

2

2016DS

Dec 22, 2015

310 (300 + 10)

days to first emergence, days to full emergence, number of nodal roots at 15 DAS, number of nodal roots at 22 DAS, number of nodal roots at 29 DAS, maximum root length (cm) at 15 DAS, maximum root length (cm) at 22 DAS, maximum root length (cm) at 29 DAS, dry shoot weight at 15 DAS (g), dry shoot weight at 22 DAS (g), dry shoot weight at 29 DAS (g), relative growth rate from 15 to 22 DAS, relative growth rate from 22 to 29 DAS, relative growth rate from 15 to 29 DAS, root hair length, root hair density, flag leaf length, flag leaf width, flag leag area, Flag leaf Angle, leaf color chart, cholorophyll content (SPAD), stem diameter, culm diameter, bending strength (kg cm), bending moment (kg cm2), plant height (cm), days to 50% flowering, biomass at 50% flowering (g), vegetative vigor score, number of productive tillers per plant, panicle length (cm), number of filled grains/panicle, 1000 grain weight (g), straw yield (kg ha− 1), grain yield (kg ha− 1)

  1. WS wet season, DS Dry season, DAS days after seeding (DAS)
  2. IR 94225-B-82-B (Aus276/3*IR64 derived progenies with better root traits and grain yield under dry direct seeding conditions [19]; IR 94226-B-177-B (Aus276/3*MTU1010 derived progenies with better root traits and grain yield under dry direct seeding conditions [19]; IR 91648-B-32-B (Moroberekan/3* Swarna derived progenies with genetic region for early and uniform germination characteristics [40]; IR 91648-B-153-B and IR 91648-B-230-B (Moroberekan/3* Swarna derived progenies with genetic region for lodging resistance [40]