Agriculture Reference
In-Depth Information
TABLE 5.4
Analysis of Variation in Wheat for Days to Heading under Different
Planting Dates
Sum of
Square
Mean of
Square
Source
DF
F-Ratio
p-Value
Significant
Replication
1
5.28
5.28
169.00
0.0489
*
Date of sowing
1
6132.78
6132.78
196249
0.0014
**
Error (date of sowing)
1
0.0313
0.0313
-
-
NS
Genotypes
7
1270.47
181.49
38.98
<0.0001
**
Sowing dates × genotypes
7
485.4688
69.3527
14.89
<0.0001
**
Error (genotypes)
14
65.19
4.66
NS
Total
31
7959.22
NS
Note:
**, Significant at 1%; *, significant at 5%; NS, nonsignificant.
FIGURE 5.5
Relay seeding of green gram crop with last irrigation of wheat crop.
saving irrigation water and vacating the fields a little early than other timely sown
cultivars (not plotted in Figure 5.6) at both Pusa (Bihar) and Jabalpur (Madhya
Pradesh). Cultivar GW366 was the best bet for mid-November planting in the central
plateau region of India with very mild winter.
Most of the genotypes like CSW18, PBW343, and HD2967 with some degree of
vernalization requirement have only a marginal effect on tillering capacity, which is,
in most of the cases, overly compensated by increase in grain size. Under canal irri-
gation, spring maize planted in March can provide a good option for intensification.
The profits can be further maximized through a dedicated breeding effort for yield
improvement of wheat in early seeding as well as through almost 10-15 days prolon-
gation of moong (green gram) period. The yellow rust of wheat, which is emerging
as a challenge to wheat-growing areas in the foothills of Punjab and Haryana, can
also be controlled through this intervention to a large extent (Figure 5.7).
