Duary et al.

The cultivars ‘PDM 54’, ‘WBM 34-1-1’ and ‘WBM 04-

of pods/plant and seeds/pod. Number of pods/

5’ not only kept the grasses, broadleaved, sedges as

plant, seeds/pod and test weight were significantly

well as total weed population in lower level than that

reduced in weedy situation, compared with one HW

of other cultivars, but also lowered down the dry

at 30 DAS, in all the cultivars excepting ‘PDM 54’

weight of weeds. This clearly indicated that these

and ‘WBM 04-5’, where no significant reduction due

three cultivars had more weed suppressing ability

to weed competition was recorded, indicating the

than the others in summer season. Similar findings

higher weed competitive ability of both the cultivars

were also reported by Mishra et al . (2004).

(Table.2). The crop cultivars under weedy situation

facedweedcompetitionfornutrients,light,waterand

Effect on Productivity

space throughout the crop growth period, resulting

The pod length, yield components (number of

in lower values of growth and yield attributes and

pods/plant, number of seeds/ pod, test weight),

ultimately the yield. The results were in agreement

seed yield and stover yield of green-gram varied

with the findings of Moorthy and Dubey (2004).

significantly among the treatments. The cultivar

The reduction in the values of yield attributes like

‘WBM 34-1-1’registered significantly the highest

number of pods/plant, seeds/pod, test weight and

pod length and test weight when grown with one

seed yield in weedy plots over one HW was the

hand weeding at 30 DAS, which was statistically at

lowest with cultivar ‘PDM 54’, followed by ‘WBM

par with that of ‘B 105’ with one HW at 30 DAS. The

04-5’ as evident in Table 3. The yield improvement

cultivars ‘B 105’, ‘PDM 54’, ‘WBM 04-5’ and ‘WBM

by one HW was higher in cultivars ‘PDM 84-139’

34-1-1’with one HW registered the higher number

(36.57%) and ‘B 1’ (34.22%) as compared to weedy

Table 2. Length of pod, yield attributes and yields of greengram as influenced by different treatments (Pooled data)

Pod

Plant

Test

Seed

Stover

Seeds /

length

population

Pods/plant

weight

yield

yield

Treatments

pod

(cm)

(No./m 2 )

(g)

(Kg/ha)

(Kg/ha)

B 1 - weedy

5.96

35

10.20

8.20

21.34

628

1284

B 105 - weedy

7.13

33

7.80

9.50

35.97

886

1795

PDM 84-139 - weedy

6.14

35

8.50

7.50

27.69

633

1412

WBM 34-1-1 - weedy

7.12

35

7.00

8.60

54.27

1143

1975

PDM 54 - weedy

7.32

36

8.60

9.20

28.12

804

2086

WBM 04-5 - weedy

6.95

34

9.80

8.00

35.42

944

1585

B 1 - HW

6.55

36

12.40

8.70

22.69

834

1428

B 105 - HW

7.88

35

10.20

10.20

38.33

1347

2029

PDM 84-139 - HW

6.72

35

11.13

8.70

30.47

998

1719

WBM 34-1-1 - HW

8.23

36

8.50

8.80

57.72

1491

2183

PDM 54 - HW

7.75

35

9.20

9.30

29.32

866

2235

WBM 04-5 - HW

7.23

35

10.53

8.10

36.93

1039

1708

LSD (0.05)

0.45

NS

1.93

1.63

2.37

131.1

218.9

(BLW) Broadleaved weed, (HW) Hand weeding at 30 DAS, (NS) Not significant

808