金沙江干热河谷旱地番石榴生长规律及其与气象因子的关系

Growth characteristics of Guava(Psidium guajava L.) in dry land and its relationship with meteorological factors in dry-hot valley of Jinsa river

对金沙江干热河谷旱地番石榴树体、正造果、番花果生长规律及平均气温、最高气温、最低气温、相对湿度、降雨量、平均地温、最高地温、最低地温、日照时数、蒸发量等气象因子对月生长量的影响进行了研究,结果表明:株高、茎粗、枝展、果实纵径、横径累积生长量均呈曲线型;株高与最高地温和日照时数、枝展与相对湿度负相关,茎粗与相对湿度、降雨量正相关,其它因子对它们的影响相反,株高与茎粗、枝展正相关,茎粗与枝展互为负相关;各因子对纵横径的影响一致,正造果与最高气温及相对湿度和降雨量、番花果与相对湿度正相关,均与谢花后天数负相关,其它因子对它们的影响相反,纵横径互为正相关。

Studies on the growth characteristics of Guava（ Psidium guajava L. ） tree, season fruit, anti-season fruit and their relations with meteorological factors including monthly mean air temperature, the highest and lowest air temperatures relative humidity, rainfall, soil temperature, the highest and lowest soil temperatures, light hours and evaporation were conducted. Results showed that the all change in tree height, stem diameter, hranch length, fruit size assumed curve type with the time passing,The highest soil temperature and light hours had negative effects on tree height, so did the relative humidity on branch length, however, relative humidity and rainfall showed positive relation with stem diameter while other meteorological factors appeared contrary effects on them. All meterologieal factors showed the same effect on the vertical and transverse diameters of fruit. In addition, the highest air temperature, relative humidity and rainfall had positive relationship with the fruit size. In off season production, the fruit size positively correlated with relative humidity. There were also negative relationship between fruit size and days after flower died down for both right and off season planting.