Rainfed rice - IRRI books - International Rice Research Institute
Rainfed rice - IRRI books - International Rice Research Institute
Rainfed rice - IRRI books - International Rice Research Institute
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RAINFED RICE A SOURCEBOOK OF BEST PRACTICES AND STRATEGIES IN EASTERN INDIA<br />
Popular varieties grown in rainfed lowlands and used as donors<br />
Variety State land type Variety State Land type<br />
Safri 17 Madhya Pradesh Shallow (drought-prone) Dhusara Orissa Semi-deep<br />
Chepti Gurmatia Madhya Pradesh Shallow (drought-prone) Janki Bihar Semi-deep<br />
Rani Kajar Madhya Pradesh Shallow (drought-prone) Jalapriya Uttar Pradesh Semi-deep<br />
Bako 1<br />
Bihar<br />
Shallow<br />
Manoharsali Assam<br />
Semi-deep<br />
Chakia 59 Uttar Pradesh Shallow<br />
Tilakkachari West Bengal<br />
Semi-deep<br />
Mahsuri Assam<br />
Shallow<br />
T 1242 Orissa<br />
Semi-deep<br />
Madhukar Uttar Pradesh Shallow<br />
Suresh West Bengal Semi-deep<br />
Pankaj<br />
Assam<br />
Shallow<br />
Patnai-23 West Bengal, Orissa Semi-deep (coastal)<br />
T 141<br />
Orissa<br />
Shallow<br />
Jalmagna Uttar Pradesh Deep<br />
BAM 6<br />
Orissa<br />
Semi-deep<br />
FR 13A Orissa<br />
Flood-prone<br />
Biraj<br />
West Bengal Semi-deep<br />
FR 43B Orissa<br />
Flood-prone<br />
CR 1014 Orissa<br />
Semi-deep<br />
Khajara Orissa<br />
Flood-prone<br />
Production constrainrs in deepwater lands<br />
Extreme floods and drought.<br />
Low plant population.<br />
Lack of adequate adaptability and stability in newly<br />
developed varieties.<br />
Non-availability of quality seed.<br />
Inadequate crop and resource management practices.<br />
Predominance of monoculture farming in deepwater<br />
lands.<br />
Weed management problems especially during pre-<br />
flood crop.<br />
Loss of yield due to yellow stem borer and ufra (caused<br />
by stem nematode).<br />
Suitable deepwater <strong>rice</strong> varieties identified and<br />
used as donors<br />
Character Donors<br />
Elongation Baisbish, Jalmagna, Negharibao, LMN 111,<br />
ability TCA 177, NDGR 402, Padmapani,<br />
Oryza rufipogon<br />
Submergence FR 13A, FR 138, BKNFR 76106-16-0-1,<br />
tolerance lR31432-6-2-2-3, lR31406-33-1,<br />
lR28884-26-3-505-1-1, Madhukar, Kurkaruppan,<br />
Goda, Heenati, Maguribao<br />
Drought RD 19, Patnai-23, CR 1009, NC 1626, Baisbish,<br />
tolerance BlET 821, Gurmatia<br />
Photoperiod CNW 539, CN 505-5-32-9, Janki, TCA 48,<br />
sensitivity Jalrnagna, BlET 821, Safri 17<br />
Seed dormancy CN 499-160-13-6, NC 92, FR 13A<br />
Long panicle OR 143-7, BlET 807, TCA 4, FRG 7, Kolimooch 64<br />
Ufra resistance Rayada 16-06, Rayada 16-09, Rayada B3,<br />
Bazail 65, Ufra 4, Ufra 12, Ufra 14, Ufra 15, Ufra 16,<br />
O. rufipogon<br />
Kneeing ability Negharibao, Dalbao, Amonabao, Padmapani<br />
134<br />
Two lowland varieties, FR 13A and<br />
FR 43B, from Orissa are the best<br />
donors for submergence tolerance.<br />
FR 13A has a high degree of<br />
submergence tolerance at the early<br />
vegetative stage (with least<br />
elongation habit), but is susceptible<br />
to submergence when floods recur<br />
in the late vegetative stage. The<br />
landraces Dhusara and Begunia<br />
Khajara tolerate cycles of flooding/<br />
submergence at both early and late<br />
vegetative stages.<br />
Deepwater area<br />
Varietal needs<br />
Drought tolerance at early crop<br />
establishment stage.<br />
Need-based elongation ability.<br />
Tall habit (150-175 cm).<br />
Nodal tillering to compensate for<br />
poor plant population.<br />
Kneeing ability.<br />
Photoperiod sensitivity (flowering<br />
between last week of October<br />
and early November).<br />
Non-shattering behaviour.<br />
Seed dormancy.<br />
Tolerance to yellow stem borer.<br />
Resistance to ufra.
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