The Effects of Twin-Row Planting Pattern and Plant Population on Seed Yield and Yield Components of Soybean at Late Double-Cropped Planting in Cukurova Region

Abstract

This study was conducted at the experimental area of Department of Field Crops, Faculty of Agriculture, Cukurova University in 2013 and 2014. The objective of this study was to determine the influence of planting pattern and plant population on seed yield and yield components of soybean at late double-cropped (after 15 th of July) planting in Cukurova region, Turkey. The experimental design was a Randomized Complete Block Design with three replications. The Atakisi (maturity group III) variety was used as a plant material in this research. The planting pattern was used as twin-row and conventional single-row. The row spacing was 70 x 25 x 70 cm, 75 x 25 x 75 cm and 80 x 25 x 80 cm for twin-row and 70 cm for single-row pattern. Intra-row spacing of 3, 4, 5 and 6 cm was arranged for different plants population. In this research, the plant populations varied between 31.6 and 69.9 plants m-2. According to a two-year average, the highest seed yield (4906 kg ha-1) was obtained from 80 x 25 x 80 x 3 cm (63.2 plants m-1) twin-row planting pattern while the yield was 3940 kg ha-1 in single-row planting pattern as 70 x 4 cm (35.7 plants m-1). The yield increase was 24.5% more than conventional single-row planting pattern (standard).

Effects of Plant Density and Planting Pattern on Growth and Seed Yield of Groundnuts [Arachis hypogaea (l.)] in the Wet Middleveld of Eswatini

“…However, according ], variation in dry matter accumulation could be due to differences in the leaf area production and leaf area index iah and Reddy [26] found that under field conditions high biomass production might reflect high water use efficiency The number of pods/plant was not significant in response to the interaction of plant density and w plant density (29630 plants per hectare) obtained higher number of pods, 42.30 which is higher than 28 obtained on ridges at high plant density (88889 1). Güllüoğlu, et al [4] conducted a similar study and found that there was a statistically significant (P<0.05) difference in pod number/plant between plant densities in different planting pattern in both years. These researchers reported that the pod number/plant values varied between 45.40 and 67.40 in 2013, and from 46.0-69.0 in 2014.…”

“…Number of branches/plant varied from 6.60 to 17.70 (both 88889 plants ha -1 ), where groundnuts were grown on ridges and raised beds respectively. In a similar study on soybeans, Güllüoğlu, et al [4] found that the branch number varied from 2.10 to 2.98 in a twoyear average. These researchers further reported that soybean produced more branches/plant at low plant densities (31.60 plant m -1 ) compared with the high plant densities ).…”

“…] also stated that when the plant density increases, the plants produce fewer pods and most of them are mature. Gulluoglu, et al [4] pod number increase in the low plant density was a result of extra branching. At low density, existing plants developed more branches and pods because of reduced in competition.…”

“…Groundnut is also an economically major oilseed crop in tropics and sub-tropical parts of the world. The seed contains 25 to 32% protein (average of 25% digestible protein) and 42 to 52% oil [1,2,3,4]. According to Gulluoglu et al [4], groundnut is the fourth major oilseed crop of the world next to soybean, rapeseed and cotton.…”

“…The seed contains 25 to 32% protein (average of 25% digestible protein) and 42 to 52% oil [1,2,3,4]. According to Gulluoglu et al [4], groundnut is the fourth major oilseed crop of the world next to soybean, rapeseed and cotton. The crop has various industrial uses including products such as food, feed, paints, lubricants and insecticides.…”