Abstract
To examine the effect of plant densities and sowing patterns on yield and agronomic characteristics of corn (hybrid S.C.704), a field experiment was conducted at Agricultural Research Station of Gorgan. This experiment was laid out in a randomized complete block design arranged in a factorial with four replications. Forage corn experiment had four levels of plant densities (D1= 55,000, D2 = 65,000, D3 = 75,000 and D4 = 85,000 plants ha -1 ) with two planting arrangements (p1= single row and p2 = double row 20 cm space apart). The results showed significant differences between planting arrangement for total dry matter, number of kernels per ear, kernels per row, ear length and double row produced higher amount for all above characters. In addition, plant density had a significant effect on total dry weight, number of kernels per ear, number of ears per row, total fresh weight and ear length (P<0.01) and with an increase in plant density amount of biomass increased. The highest grain yield (8.28 ton ha -1 ), ear dry weight (3.29 ton ha -1 ) and harvest index (46.21%) were produced by density of 75,000 plants ha -1 and 20 cm double row. The highest total dry weight was obtained from density of 85,000 plants ha -1 and 20 cm double row (18.38 ton ha -1 ). It might be concluded that by using double row planting pattern the inter plant competition could be decreased and higher yield might be produced.
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Claims 8
Claim · model-written summary
Double-row planting significantly increased total dry matter, kernel counts and ear length over single-row planting.
- Taxon
- corn
Zea mays subsp. mayse2 - Material
- hybrid S.C.704e2
- Treatment
- double rowe0
- Outcome
- total dry matter, number of kernels per ear, kernels per row, ear lengthe0
- Direction
- highere0
- Comparator
- single rowe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant differences between planting arrangement for total dry matter, number of kernels per ear, kernels per row, ear length and double row produced higher amount for all above characters”
e1“p1= single row and p2 = double row 20 cm space apart”
e2“corn (hybrid S.C.704)”
Claim · model-written summary
Plant density significantly affected total dry weight, kernel and ear counts, fresh weight and ear length.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- plant densitye0
- Outcome
- total dry weight, number of kernels per ear, number of ears per row, total fresh weight and ear lengthe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant density had a significant effect on total dry weight, number of kernels per ear, number of ears per row, total fresh weight and ear length (P<0.01)”
e1“corn (hybrid S.C.704)”
Claim · model-written summary
Biomass increased with plant density.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- plant densitye0
- Outcome
- biomasse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with an increase in plant density amount of biomass increased”
e1“corn (hybrid S.C.704)”
Claim · model-written summary
Grain yield peaked at 8.28 ton ha -1 with 75,000 plants ha -1 and 20 cm double rows.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- density of 75,000 plants ha -1 and 20 cm double rowe0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 8.28 ton ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest grain yield (8.28 ton ha -1 ), ear dry weight (3.29 ton ha -1 ) and harvest index (46.21%) were produced by density of 75,000 plants ha -1 and 20 cm double row”
e1“corn (hybrid S.C.704)”
Claim · model-written summary
Ear dry weight peaked at 3.29 ton ha -1 with 75,000 plants ha -1 and 20 cm double rows.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- density of 75,000 plants ha -1 and 20 cm double rowe0
- Outcome
- ear dry weighte0
- Direction
- higheste0
- Value
- 3.29 ton ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest grain yield (8.28 ton ha -1 ), ear dry weight (3.29 ton ha -1 ) and harvest index (46.21%) were produced by density of 75,000 plants ha -1 and 20 cm double row”
e1“corn (hybrid S.C.704)”
Claim · model-written summary
Harvest index peaked at 46.21% with 75,000 plants ha -1 and 20 cm double rows.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- density of 75,000 plants ha -1 and 20 cm double rowe0
- Outcome
- harvest indexe0
- Direction
- higheste0
- Value
- 46.21%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest grain yield (8.28 ton ha -1 ), ear dry weight (3.29 ton ha -1 ) and harvest index (46.21%) were produced by density of 75,000 plants ha -1 and 20 cm double row”
e1“corn (hybrid S.C.704)”
Claim · model-written summary
Total dry weight peaked at 18.38 ton ha -1 with 85,000 plants ha -1 and 20 cm double rows.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- density of 85,000 plants ha -1 and 20 cm double rowe0
- Outcome
- total dry weighte0
- Direction
- higheste0
- Value
- 18.38 ton ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest total dry weight was obtained from density of 85,000 plants ha -1 and 20 cm double row (18.38 ton ha -1 )”
e1“corn (hybrid S.C.704)”
Claim · model-written summary
The authors suggest double-row planting may decrease interplant competition and increase yield.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- double row planting patterne0
- Outcome
- higher yield might be producede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by using double row planting pattern the inter plant competition could be decreased and higher yield might be produced”
e1“corn (hybrid S.C.704)”