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Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

Front Agric Chin    2011, Vol. 5 Issue (3) : 262-267    https://doi.org/10.1007/s11703-011-1099-x
RESEARCH ARTICLE
Response of cotton genotypes to planting date and plant spacing
Muhammad IQBAL, Mueen Alam KHAN()
Department of Plant Breeding & Genetics, College of Agriculture & Environmental Sciences, The Islamia University of Bahawalpur,Pakistan
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Abstract

Cotton growers face a problem of low cotton yield in late planting (after sunflower and maize). The objective of our study was to determine the effects of planting date, plant spacing (plant density), and genotypes on seed cotton yield and its components, ginning outturn (GOT%), and fiber quality traits (fiber length and fiber fineness). Five planting dates (May 1, May 15, May 30, June 15, and June 30), three plant spacings (15, 30, and 45 cm), and three cotton genotypes (CRS-6070, CRS-738, and CIM-496) were evaluated for seed cotton yield with its components and fiber quality traits. The results showed that monopodial branches/plant, sympodial branches/plant, number of bolls/plant, and seed cotton yield differed significantly among different planting dates, plant spacing, and genotypes. While the boll weight was significantly different among genotypes only. GOT%, fiber length, and fiber fineness were different significantly among planting time and cotton genotypes, which were not significantly affected by plant spacing. Cotton grown in early planting dates had higher seed cotton yield (4874 and 4653 kg/hm2) at the highest plant spacing (45 cm). While late sown cotton (June 15 onward) gave higher seed cotton yields (2068 and 1889 kg/hm2) at the lowest plant spacing (15 cm). GOT%, fiber length, and fiber fineness improved significantly in late planting and not affected from plant spacing. From our present study, it is concluded that high seed cotton yield can be achieved at high plant spacing in early planting while at low plant spacing in late planting.

Keywords planting date      plant spacing      cotton genotypes      seed cotton yield and fiber traits     
Corresponding Author(s): KHAN Mueen Alam,Email:mueen_1981@yahoo.com   
Issue Date: 05 September 2011
 Cite this article:   
Muhammad IQBAL,Mueen Alam KHAN. Response of cotton genotypes to planting date and plant spacing[J]. Front Agric Chin, 2011, 5(3): 262-267.
 URL:  
https://academic.hep.com.cn/fag/EN/10.1007/s11703-011-1099-x
https://academic.hep.com.cn/fag/EN/Y2011/V5/I3/262
SOVDfMNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
Replications20.1074.89668.289*0.003188986.06*0.3530.0460.021
SD43.891*1466.585*1225.3*0.23117401503.9*9.924*8.366*0.881*
Error a80.0451.4802.5570.1042613.3720.1620.0310.023
S23.371*94.719*5565.62*0.068*60424.067*0.0990.4650.061
SD × S80.161*6.609*92.03*0.020422987.56*0.3190.2270.031
Error b200.0220.9743.2480.0114014.0110.0370.2390.24
V217.646*273.607*928.067*0.430*4851292.4*69.239*34.145*3.378*
SD × V80.675*15.469*70.585*0.016*468924.38*0.857*1.893*0.062*
S × V40.804*2.641*41.756*0.00313875.4*0.187*1.047*0.014
SD × S × V160.156*4.057*14.135*0.00734124.775*0.407*0.514*0.027
Error c600.0371.2701.0220.00515113.7670.0280.0240.196
Tab.1  Mean squares of analysis of variance for monopodial branches/plant, sympodial branches/plant, number of bolls/plant, boll weight, seed cotton yield, and fiber traits
Planting datesMNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
May 11.3526.8533.513.274328.338.9427.195.39
May 151.1927.2934.743.293991.439.4428.045.17
May 300.8221.7429.183.303334.439.8428.454.98
June 150.6513.0023.703.362090.540.2028.555.02
June 300.4311.9218.703.121274.640.4628.374.95
CD (P≤0.05)0.1340.761.0060.20332.080.2510.110.095
Tab.2  Effect of sowing date on yield and fiber components
Plant spacing (cm)MNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
150.5921.4615.443.243514.239.8228.015.12
300.9620.4231.823.383414.139.7828.135.13
451.1218.6036.663.183283.239.7328.215.06
CD (P≤0.05)0.0650.4330.740.04527.870.0860.2150.215
Tab.3  Effect of spacing on yield and fiber components
GenotypesMNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
CRS-60700.4821.1628.293.233559.740.8827.145.18
CRS-7380.5921.9832.353.383625.238.4328.814.80
CIM-4961.6117.3523.293.193026.640.0228.425.33
CD (P≤0.05)0.1821.080.960.066115.90.1560.1460.418
Tab.4  Effect of genotypes on yield and fiber traits
Sowing datePlant spacing (cm)MNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
May 1150.8327.2218.563.294116.139.1527.105.47
301.5227.4437.223.314321.539.0327.165.41
451.7125.8944.783.214547.238.6227.315.29
May 15150.8228.1218.783.253982.939.5127.935.22
301.3127.4539.113.364023.339.4228.125.20
451.4626.3446.323.273968.139.4028.075.10
May 30150.5623.8915.673.263618.139.9828.345.01
300.8821.7833.773.343315.839.7828.534.96
451.0419.5638.103.273069.439.7728.504.98
June 15150.4315.3213.343.293356.340.1828.645.03
300.6513.3128.323.382098.140.0428.315.02
450.8710.3229.453.431217.140.3828.705.02
June 30150.3112.7710.893.042497.740.2928.054.88
300.4612.1220.673.151512.240.6328.255.04
450.5410.8924.663.161014.040.4728.514.92
CD (P≤0.05)0.1440.971.770.10262.310.1890.4790.48
Tab.5  Mean performance under interaction of sowing date and plant spacing for different traits
Sowing dateGenotypesMNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
May 1CRS-60700.7027.3332.003.204256.739.7325.525.46
CRS-7380.8629.6740.003.374630.437.8928.375.12
CIM-4962.5123.5628.563.244097.739.1927.685.59
May 15CRS-60700.6627.0033.103.223970.340.4527.105.23
CRS-7380.8329.4542.773.424140.738.4428.804.92
CIM-4962.1025.4428.453.233863.439.3428.235.37
May 30CRS-60700.5123.0128.893.283718.541.0227.575.01
CRS-7380.5623.6733.883.403485.738.5129.234.68
CIM-4961.4218.5624.783.192799.240.0028.575.27
June 15CRS-60700.2914.2225.553.362655.841.3227.755.16
CRS-7380.4113.1226.223.502493.238.6429.294.68
CIM-4961.2611.6719.323.242022.640.6228.615.23
June 30CRS-60700.2314.2220.123.131697.541.8527.755.03
CRS-7380.3114.0118.893.181476.138.6828.344.61
CIM-4960.787.5515.343.021750.340.8629.025.20
CD (P≤0.05)0.1821.060.450.066115.90.1580.1460.418
Tab.6  Mean performance for different traits under interaction of sowing date and genotypes
Plant spacingGenotypesMNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
15 cmCRS-60700.3622.6016.223.183688.741.0126.945.22
CRS-7380.4123.6117.933.343713.638.5228.664.79
CIM-4961.0018.2112.213.163140.339.9328.455.35
30 cmCRS-60700.4821.6631.073.293584.440.8927.315.21
CRS-7380.5922.3637.323.413648.538.3828.564.81
CIM-4961.8217.6727.073.213009.640.0828.535.37
45 cmCRS-60700.5919.2737.663.253406.140.7327.175.11
CRS-7380.7720.3441.813.373513.538.4029.204.79
CIM-4962.0116.2130.623.192929.940.0528.285.28
CD (P≤0.05)0.140.8220.7380.05289.780.1220.1140.324
Tab.7  Mean performance for different traits under interaction of spacing and genotypes
Sowing datePlant spacing (cm)GenotypesMNOSYMPB/PBoll weight (g)Yield (kg/hm2)GOT%Fiber length (mm)Fiber fineness (μg/inch)
May 115CRS-60700.5029.019.03.2405340.225.55.7
CRS-7380.6031.021.63.4436438.228.25.0
CIM-4961.4021.615.13.3393039.127.65.6
30CRS-60700.6027.334.63.2427140.325.55.4
CRS-7380.7030.745.33.4425337.728.45.2
CIM-4963.2024.331.63.2404039.227.65.6
45CRS-60700.9625.742.33.2444538.725.65.3
CRS-7381.2627.353.03.3487437.928.55.1
CIM-4962.9024.639.13.2465339.327.85.5
May 1515CRS-60700.5626.719.03.2398040.626.85.3
CRS-7380.5331.322.33.4417838.528.84.9
CIM-4961.3626.715.13.2378939.628.25.4
30CRS-60700.6728.036.73.3405840.427.25.2
CRS-7380.8629.148.63.5416538.528.84.9
CIM-4962.4025.432.13.3384739.428.35.4
45CRS-60700.7326.743.33.2387240.327.25.2
CRS-7381.1028.057.33.4407838.428.84.8
CIM-4962.5324.338.33.2395339.528.25.3
May 3015CRS-60700.3325.415.63.2395941.127.55.1
CRS-7380.4325.718.33.3365338.728.94.7
CIM-4960.9020.613.03.2324140.128.65.2
30CRS-60700.5323.333.03.4373740.627.65.0
CRS-7380.6023.440.63.5343938.429.44.6
CIM-4961.5018.627.73.2277040.228.75.3
45CRS-60700.6320.438.13.2345841.327.64.9
CRS-7380.6222.032.73.5336438.429.44.7
CIM-4961.8616.333.63.1238639.728.55.3
June 1515CRS-60700.2317.214.33.2338941.527.75.2
CRS-7380.3315.416.13.4379738.729.64.7
CIM-4960.7313.39.73.2288240.428.65.3
30CRS-60700.3414.628.73.4318741.227.85.2
CRS-7380.4612.732.13.5349638.628.54.6
CIM-4961.1712.624.33.2261140.228.75.3
45CRS-60700.3010.733.63.5229141.227.85.2
CRS-7380.4311.330.73.6218628.629.84.7
CIM-4961.879.124.13.3197441.328.55.1
June 3015CRS-60700.1715.013.13.1206841.727.24.9
CRS-7380.1314.611.33.1188938.627.74.6
CIM-4960.638.78.42.9155840.529.25.2
30CRS-60700.2314.722.43.1186041.828.55.3
CRS-7380.3414.320.13.2157438.627.74.7
CIM-4960.807.219.63.1147941.429.45.2
45CRS-60700.3013.013.73.2126342.127.65.0
CRS-7380.4313.125.43.2106438.729.54.6
CIM-4960.906.618.13.191340.628.45.2
CD (P≤0.05)0.1631.841.650.116200.760.2740.2520.722
Tab.8  Mean performance for different traits under interaction of sowing date, plant spacing, and genotypes
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