Effect of Shading on Rice Growth Characteristics Under Different Temperature Conditions

• 영문명: Effect of Shading on Rice Growth Characteristics Under Different Temperature Conditions
• 발행기관: 한국작물학회
• 저자명: Zun Phoo Wai 이민지(Min-Ji Lee) 황운하(Woon-Ha Hwang)
• 간행물 정보: 『한국작물학회지』제69권 제1호, 15~24쪽, 전체 10쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2024.03.30

영문 초록

Environmental factors play an important role in crop growth and development. In recent years, climate change has become a challenge that limits environmental factors. Light is an important environmental factor for photosynthesis in rice. In addition, temperature is one of the most important factors for rice production; thus, a 1°C increase in temperature because of climate change can affect rice growth and development. Therefore, we investigated the effect of shading on the growth characteristics of rice under different temperature conditions from the vegetative stage to the flowering stage. Plants were grown at three different temperatures: 26°C/16°C for 21°C, 29°C/19°C for 24°C, and 22°C/32°C for 27°C in a phytotron. A 55% shade treatment was applied after 10 days of transplanting until the flowering stage. Plant height was not affected by the shading treatment. In the maximum tiller number response to shading, a lower tiller number and growth speed of tiller was found in the 27°C condition. Among leaf characteristics, shading increased the flag leaf area, length, width, and effective leaf area; however, it decreased the leaf number on the main stem, especially at 27°C. In terms of stem characteristics, shading affected culm wall thickness in both varieties. Finally, regarding the panicle characteristics, lower panicle numbers, spikelet numbers per panicle, primary numbers, and secondary numbers per panicle were found under the shading treatment. Most of the desirable characteristics were affected by the shading treatment at 27°C. Overall, these results indicated that shading had a greater effect on rice plant growth at high temperature.

목차

MATERIALS AND METHODS

RESULTS AND DISCUSSION

CONCLUSION

ACKNOWLEDGEMENTS

REFERENCES

키워드

growth speed response rice shading temperature