Effects of Winter Cover Crop-Minor Cereal Cropping System on Weed Occurrences and Crop Growth

Kang, Myung Hoon; Jeon, Seung Ho; Lee, Se Hun; Yoon, Seong Tak; Hwang, Jae Bok; Kim, Seok Hyun; Shim, Sang In

doi:10.5660/kjws.2010.30.3.243

Korean Journal of Weed Science

2010

DOI: 10.5660/kjws.2010.30.3.243

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Effects of Winter Cover Crop-Minor Cereal Cropping System on Weed Occurrences and Crop Growth

Myung Hoon Kang¹,

Seung Ho Jeon²,

Se Hun Lee³

et al.

Abstract: and 511.8 g m -2 in control, rye field and CMV field, respectively, on August 22. The suppressing effect of cover crops also observed in minor cereals. Plant height and dry weight of sorghum was reduced to 68.7% and 33.6% of handweeding, respectively, on August 5. The reduction was recovered to 82.7% and 55.6% of control, respectively, on August 26. In addition, heading date of minor cereals was delayed by 7 days with rye.

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Cited by 3 publications

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“…Commonly used PGRs in agriculture include ancymidol (A-Rest), chlormequat chloride (CCC), chlorphonium chloride (Phosphon), daminozide (B-9), paclobutrazol and prohexidione-calcium (Pro-Ca) (Hashemabadi et al, 2012;Hwang et al, 2009;Kim et al, 2010;Na et al, 2013). In addition, some substances registered as fungicides that also inhibit stem elongation are used as PGRs in crops such as cabbage and turf.…”

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“…In addition, some substances registered as fungicides that also inhibit stem elongation are used as PGRs in crops such as cabbage and turf. Examples include uniconazole, diniconazole, hexaconazole and trinexapac-ethyl (Hashemabadi et al, 2012;Hwang et al, 2009;Kim et al, 2010;Na et al, 2012). Uniconazole, paclobutrazol, cycocel and B-9 have been used in flowering plants.…”

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Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium

Park,

Han,

Sin

et al. 2023

J. People Plants Environ

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Background and objective: The aim of this study was to elucidate the effect of varying treatment concentrations of two different plant growth retardants, acting at different inhibition positions during the biosynthetic process, on the growth characteristics of geranium (Pelargonium × hortorum) and then to provide essential data to improve the quality of pot plant production.Methods: Aqueous solutions of diniconazole (Binnari) and daminozide (B-9) at concentrations of 0 (distilled water), 50, 100, 200, and 400 mg⋅L-1 were prepared for the geranium 'Ringo 2000TM Deep Red'. These solutions were applied by foliar spraying twice at 10-day intervals. Growth characteristics such as plant height, leaf size and relative chlorophyll content (SPAD) were then assessed.Results: When Binnari was applied at concentrations of 0, 50, 100, 200, and 400 mg⋅L-1 , the corresponding plant heights were 29.5, 23.8, 24.1, 23.0, and 18.4 cm, respectively. There was a statistically significant decrease in plant height with increasing concentration. Conversely, for B-9, plant height was significantly reduced to 26.7 cm only at the 400 mg⋅L-1 concentration, indicating a less pronounced inhibitory effect compared to Binnari. Leaf width showed a significant decreasing trend with increasing Binnari application concentrations and was 4.6, 4.7, 4.1, 4.2, and 3.9 cm respectively. However, there was no significant difference due to the B-9 treatment. Chlorophyll content increased with increasing concentrations of both retardants.Conclusion: In conclusion, Binnari showed a greater inhibitory effect on geranium growth compared to B-9. The application of Binnari at 400 mg⋅L-1 resulted in the greatest increase in the ornamental value of the geranium. Furthermore, diniconazole acts during the early stage before the splitting of the GA1 and GA4 pathways, thus inhibiting the biosynthesis of both active gibberellins. In contrast, daminozide inhibits the step just before GA1 biosynthesis. It is concluded that GA4 serves as the dominant active gibberellin in geranium plants.

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mentioning

confidence: 99%

mentioning

confidence: 99%

Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium

Park,

Han,

Sin

et al. 2023

J. People Plants Environ

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Effects of Cover Crops and Sowing Methods on Weed Occurrences and Growth and Yield of Sorghum (Sorghum bicolor)

Jeon¹,

Yun²,

Park³

et al. 2012

Korean Journal of Weed Science

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This study was conducted to evaluate the weed suppressing effects of different cropping system including hairy vetch (Vicia villosa) and rye (Secale cereale) cover crops, polyethylene plastic film, and transplanting film mulching in direct sowing and transplanted sorghum field in 2011. Crop growth and development and weed occurrences in the fields were examined to know the efficiency of proposed cropping system. In polyethylene film mulching treatment, heading date of sorghum was earlier by 3 days than control, on the other hands, rye cover crop mulching delayed heading date by 11 days. Besides the effect of cover crop on the heading of sorghum, the residues changed growth characteristics. Plant height of sorghum was increased by 27.3% at hairy vetch treatment although it was reduced by 47.5% in the rye cover crop treatment. Hairy vetch treatment showed beneficial effects on sorghum growth reduced the occurrences of grasses and broadleaf weeds to 84% and 96%, respectively, as compared to control in sorghum fields. While rye cover crop treatment showed poor sorghum growth reduced less strongly grasses and broadleaf weeds by 35% and 71%, respectively. At harvest, yield of sorghum was greater in order of hairy vetch cover crop > polyethylene film mulching > rye cover crop ≒ control in both transplanted and direct sown fields.

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Effects of Cover Crops and Sowing Methods on Weed Occurrences, Growth and Yield in Foxtail Millet Fields

Jeon¹,

Shim²,

Kim³

et al. 2012

Korean Journal of Crop Science

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This study was conducted to evaluate the weed suppressing effects of different cropping system including hairy vetch and rye cover crops, polyethylene plastic film, and transplanting film mulching in direct sowing and transplanted foxtail millet field in 2011. Crop growth and development and weed occurrences in the fields were examined to know the efficiency of proposed cropping system. In polyethylene film mulching treatment, heading date of foxtail millet was earlier by 4 days than control, on the other hands, rye cover crop mulching delayed heading date by 8 days. Besides the effect of cover crop on the heading of foxtail millet, the residues changed growth characteristics. Plant height of foxtail millet was increased by 92.4% at hairy vetch treatment although the height of was reduced by 63.7% in the rye cover crop treatment. Hairy vetch treatment showed beneficial effects on foxtail millet growth reduced the occurrences of grasses and broadleaf weeds higher than 90%, as compared to control in foxtail millet fields. While rye cover crop treatment showed poor foxtail millet growth reduced less strongly grasses and broad-leaf weeds by 47% and 90%, respectively. At harvest, yield of foxtail millet was greater in order of hairy vetch cover crop > polyethylene film mulching > rye cover crop ≒ control in both transplanted and direct sown fields.

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Effects of Winter Cover Crop-Minor Cereal Cropping System on Weed Occurrences and Crop Growth

Cited by 3 publications

References 20 publications

Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium

Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium

Effects of Cover Crops and Sowing Methods on Weed Occurrences and Growth and Yield of Sorghum (Sorghum bicolor)

Effects of Cover Crops and Sowing Methods on Weed Occurrences, Growth and Yield in Foxtail Millet Fields

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