DBW222 is characterized by potential yield of 8210 kg ha-1 under high fertility when sown in timely conditions in North India. It possesses better agronomic attributes and has better adaption to sowing time, high rust resistance, quality attributes, and lodging tolerance because of a shorter 2nd internode and wider diameter.
Keywords:
Wheat breeding; high yield; lodging tolerance
| Ancillary Traits | Description | DUS Traits | Description |
|---|---|---|---|
| Heading Days | 95 (89-103) | Growth Habit | Semierect |
| Maturity Days | 143 (139-150) | Anthocyanin pigmentation (Coleoptile, Leaf Sheath, Auricle (at flag leaf stage) | Absent |
| Plant Height (cm) | 103 (98-108) | Foliage Colour Boot Stage | Dark green |
| 1000-grains weight | 42 (41-44 g) | Waxiness at ear emergence (Flag leaf, leaf sheath, ear and peduncle | Present |
| DUS Traits | Description | Peduncle Shape | Bent |
| Awn | Medium length and white colour | Ear | White colour, tapering shape and intermediate density. |
| Glume | Glumes are non-pubescent with elevated shoulder shape, very long beak length | ||
| Grain | Amber colour, hard texture, oblong shape and bold size. Round crease width and wide germ width. Weak brush hair profile and short brush hair length | ||
| Item | Year of testing | No. of trials | DBW 222 | Check Varieties | C.D. | ||||
|---|---|---|---|---|---|---|---|---|---|
| HD 2967 | WH 1105 | DBW 88 | HD 3086 | DPW 621-50 | |||||
| Mean yield (kg ha-1) | 2016-17 | 8 | 6410 | 4870 | 5800 | 5270 | - | - | 260 |
| 2017-18 | 25 | 5800 | 5290 | 5360 | 5330 | 5590 | 5410 | 80 | |
| 2018-19 | 19 | 6440 | 5830 | 6270 | 6100 | 6280 | 6110 | 90 | |
| Weighted Mean | - | 6130 | 5420 | 5760 | 5600 | 5890 | 5710 | ||
| Comparison of mean of DBW222 with checks (Z test) | P (T<=t) two-tail | 0.0002 | 0.043 | 0.0062 | 0.215 | 0.0375 | |||
| % Increase / decrease over checks & qualifying varieties | 2016-17 | - | - | 31.6* | 10.5* | 22.2* | - | - | |
| 2017-18 | - | - | 9.6* | 8.2* | 8.8* | 3.75* | 7.20* | ||
| 2018-19 | - | - | 10.5* | 2.7* | 5.6* | 2.54* | 5.40* | ||
| Mean | - | 13.1 | 6.4 | 9.4 | 4.0 | 7.3 | |||
| Yield potential (highest yield harvested) (kg ha-1) | 8210 | 6920 | 7590 | 7730 | 7320 | 7220 | |||
| Statistically superior group | 29/52 | 9/52 | 10/52 | 9/52 | 14/44 | 7/44 | |||
| SN | Trait | DBW222 | DBW 88 | HD 3086 | HD 2967 | DBW187 | CD | CV |
|---|---|---|---|---|---|---|---|---|
| 1 | 1st Internode diameter (mm) | 50.00 | 30.67 | 31.33 | 35.00 | 38.67 | 0.74 | 1.5 |
| 2 | 2nd Internode diameter (mm) | 48.67 | 29.33 | 36.00 | 41.33 | 39.67 | 0.14 | 2.8 |
| 3 | 1st Internode length (cm) | 5.30 | 6.10 | 8.17 | 2.90 | 5.10 | 0.53 | 7.7 |
| 4 | 2nd Internode length (cm) | 8.66 | 9.33 | 9.83 | 9.73 | 9.33 | 0.66 | 5.7 |
| 5 | 3rd Internode length (cm) | 10.77 | 16.67 | 12.83 | 10.73 | 11.90 | 0.97 | 6.2 |
| 6 | Dry weight (g) 1st Internode | 0.21 | 0.14 | 0.23 | 0.12 | 0.23 | 0.03 | 13.3 |
| 7 | Dry weight (g) 2nd Internode | 0.35 | 0.29 | 0.19 | 0.25 | 0.27 | 0.16 | 46.5 |
| 8 | Dry weight (g) 3rd Internode | 0.30 | 0.24 | 0.22 | 0.28 | 0.32 | 0.04 | 11.8 |
| Diseases | DBW222 | HD2967 | WH1105 | HD3086 | DBW88 | DPW621-50 |
|---|---|---|---|---|---|---|
| Rusts | *HS (ACI) | HS (ACI) | HS (ACI) | HS (ACI) | HS (ACI) | HS (ACI) |
| Stripe rust (natural) | 40S (9.0) | 60S (42.9) | 60S (22.7) | 60S (9.6) | 60S (22.9) | 60S (17.9) |
| Stripe rust (artificial) | 60S (14.6) | 80S (37.5) | 80S (33.2) | 40MS (10.0) | 80S (43.4) | 80S (45.5) |
| Leaf rust (natural) | tS (0.3) | 10S (5.0) | 5S(2.0) | 20S (7.5) | 20S (5.0) | 10MS (2.0) |
| Leaf rust (artificial) | 10S (2.5) | 30S (6.5) | 60S (17.0) | 40S (28.1) | 20S (4.1) | 20S (4.7) |
| Gene postulation | ||||||
| Stripe rust | Yr9+ | Yr2+ | Yr2+ | Yr2+ | YrA+ | - |
| Leaf rust | Lr26+23+ | Lr23+ | Lr13+ | Lr13+10+ | Lr13+10+3+ | Lr13+10+ |
| Other Diseases | ||||||
| Karnal bunt | 9.1 (4.0) | 16.1 (6.7) | 26.4 (10.6) | 15.2 (6.7) | 17.8 (6.1) | 16.7 (5.9) |
| Loose smut | 14.6 (4.9) | 51.2 (26.6) | 26.9 (15.7) | 17.8 (7.6) | 36.6 (17.6) | 53.1 (29.1) |
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