Relationship Between Elongation and Meteorological Factors in One Production Cycle of Sugarcane

doi:10.11924/j.issn.1000-6850.casb2021-0018

Abstract

Abstract:

Based on the growth and development observation data and main meteorological factors of sugarcane at the Shatang National Agricultural Meteorological Experimental Station in Liuzhou City from 2010 to 2012, the relationship between ten-day elongation of newly planted sugarcane, first-year ratoon sugarcane and second-year ratoon sugarcane and ten-day precipitation, ten-day average temperature and ten-day average sunshine hours was analyzed, and the correlation between ten-day elongation of sugarcane and meteorological factors was studied. The results showed that there was a good corresponding relationship between sugarcane elongation and ten-day precipitation. The ten-day elongation of sugarcane was high when the ten-day precipitation was large, which was consistent with the local precipitation law. Through correlation analysis, the meteorological water factor, precipitation, relative humidity and ten-day average water vapor pressure were significantly or very significantly positively correlated with the ten-day elongation of new planting sugarcane, first-year ratoon sugarcane and second-year ratoon sugarcane. There was a positive correlation between ten-day average temperature and ten-day elongation of newly planted sugarcane, but it was not significant. There was a significantly positive correlation between ten-day average temperature and ten-day elongation of the first year and the second year. The peak value of ten-day average sunshine hours corresponded to the low value of ten-day elongation. Through correlation analysis, the correlation between ten-day average sunshine hours and new planting sugarcane, first-year perennial sugarcane and second-year perennial sugarcane was not significant, indicating that water factor was the key meteorological factor to determine sugarcane height.

Key words: sugarcane, production cycle, elongation, meteorological factors, precipitation, correlation analysis

CLC Number:

S533

Wu Xuanke, Wang Renjun, Ma Dongchen, An Jiajun, Huang Wei, Liu Yongyu, Liu Zhiping, Yao Yuqun. Relationship Between Elongation and Meteorological Factors in One Production Cycle of Sugarcane[J]. Chinese Agricultural Science Bulletin, 2021, 37(33): 36-40.

Figures/Tables 4

References 13

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甘蔗周期	旬平均气温/ ℃	旬平均最高气温/ ℃	旬平均最低气温/ ℃	旬平均日照时数/ h	旬平均水汽压/ Pa	旬平均相对湿度/ %	旬降雨量/ mm
3年甘蔗旬伸长量	0.640^**	0.496^**	0.709^**	0.060	0.771^**	0.794^**	0.593^**
新植蔗	0.576^*	0.417	0.676^**	0.174	0.744^**	0.803^**	0.538^*
第一年宿根蔗	0.772^**	0.659^**	0.790^**	0.189	0.858^**	0.823^**	0.602^**
第二年宿根蔗	0.693^**	0.558^*	0.760^**	-0.332	0.777^**	0.821^**	0.693^**

甘蔗周期	旬平均气温/ ℃	旬平均最高气温/ ℃	旬平均最低气温/ ℃	旬平均日照时数/ h	旬平均水汽压/ Pa	旬平均相对湿度/ %	旬降雨量/ mm
3年甘蔗旬伸长量	0.640^**	0.496^**	0.709^**	0.060	0.771^**	0.794^**	0.593^**
新植蔗	0.576^*	0.417	0.676^**	0.174	0.744^**	0.803^**	0.538^*
第一年宿根蔗	0.772^**	0.659^**	0.790^**	0.189	0.858^**	0.823^**	0.602^**
第二年宿根蔗	0.693^**	0.558^*	0.760^**	-0.332	0.777^**	0.821^**	0.693^**

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