Table 31. 1990 Dickinson Buckwheat Variety Trial

Variety

Lb/A Avg.

Test wt lbs.

Common

729

49.5

Mancan

401

44.0

Giant American

355

47.5

Manor

507

45.0

Seeding Rate: 50 lbs/A; Seeding Date: June 1; Harvest Date: Sept.; Fertilizer Applied: 50 lbs/A 18-46-0; LSD 78 lbs/Acre; C.V. = 9.9%

Table 32. Long term yields - Buckwheat, Dickinson.

Variety

1985

1986

1987

1988

1989

1990

6 yr Avg.

Mancan

1826

1290

1810

338

183

401

975

Manor

2116

1523

1810

338

0

507

1049

Common

2280

1380*

3016

637

249

729

1382

*calculated missing value.

Table 33. Buckwheat Date and Rate of Seeding Variable

Treatment

Yield lbs/A

Test Wt lbs.

Mancan @ 40 lbs/A

266.0

43.0

Manor @ 40 lbs/A

256.3

42.0

Mancan @ 50 lbs/A

232.5

43.0

Manor @ 50 lbs/A

228.5

42.0

Mancan @ 60 lbs/A

211.0

44.0

Manor @ 60 lbs/A

201.0

42.0

L.S.D. 5% = 46.1 lbs/A; C.V. = 12.0%; Seeding Date: June 1; Harvest Date: Sept. 24

Table 34. Buckwheat Date and Rate of Seeding Variable

Treatment

Yield

lbs/A

Test Wt

lbs.

Mancan @ 40 lbs/A

506.0

43.5

Manor @ 40 lbs/A

490.0

40.5

Mancan @ 50 lbs/A

558.0

42.0

Manor @ 50 lbs/A

480.0

40.0

Mancan @ 60 lbs/A

464.0

42.5

Manor @ 60 lbs/A

385.0

40.5

L.S.D. 5% = 72.9 lbs/A; C.V. = 9.5%; Seeding Date: June 30; Harvest Date: Sept. 27