Abstract
Ten planting dates were selected at weekly intervals for the purpose of determining the optimum planting date for two late maturing sorghum ( Sorghum bicolor ) cultivars in the 1995 and 1996 cropping seasons. Both the floral characteristics and the ultimate grain yield were affected by variation in planting date. The highest grain yield for each cultivar (977 and 958 kg ha −1 for Janare and Farin Dawa respectively in 1995, and 975 and 955 kg ha −1 respectively in 1996) resulted from planting delayed for exactly 51 days after the onset of the rains. Consequently, 10–12 June appeared to be the optimum planting dates for sorghum in the area. A comparison of the result with previous work done in the same ecological unit revealed that delaying planting until 10–12 June increased grain yield by about 25–27 kg ha −1 . The effects of the characteristics of the onset of the rains on the optimum planting date have been discussed and the implication of the study for traditional agricultural practice in Nigeria has also been noted.
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Claims 4
Claim · model-written summary
The highest grain yield of each sorghum cultivar resulted from planting delayed for 51 days after the onset of the rains.
- Material
- Janare and Farin Dawae1
- Treatment
- planting delayed for exactly 51 days after the onset of the rainse1
- Outcome
- grain yielde1
- Direction
- higheste1
- Value
- 977 and 958 kg ha −1e1
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Investigating the optimum planting date for sorghum in the forest–savanna transition zone of Nigeria”
e1“The highest grain yield for each cultivar (977 and 958 kg ha −1 for Janare and Farin Dawa respectively in 1995, and 975 and 955 kg ha −1 respectively in 1996) resulted from planting delayed for exactly 51 days after the onset of the rains”
Claim · model-written summary
10–12 June appeared to be the optimum planting dates for sorghum in the area.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Consequently, 10–12 June appeared to be the optimum planting dates for sorghum in the area”
Claim · model-written summary
Delaying planting until 10–12 June increased grain yield by about 25–27 kg ha −1 compared with previous work in the same ecological unit.
- Treatment
- delaying planting until 10–12 Junee1
- Outcome
- grain yielde1
- Direction
- increasede1
- Value
- 25–27 kg ha −1e1
- Comparator
- previous work done in the same ecological unite1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Investigating the optimum planting date for sorghum in the forest–savanna transition zone of Nigeria”
e1“A comparison of the result with previous work done in the same ecological unit revealed that delaying planting until 10–12 June increased grain yield by about 25–27 kg ha −1”
Claim · model-written summary
Floral characteristics and ultimate grain yield of sorghum were affected by variation in planting date.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Investigating the optimum planting date for sorghum in the forest–savanna transition zone of Nigeria”
e1“Both the floral characteristics and the ultimate grain yield were affected by variation in planting date”
The same questions in other papers
rainfall · yield · SorghumPositive and negative results
10 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- negative
- negative
15 papers more in this group
See all 19 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.