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作 者:周辉锦
机构地区:[1]尤溪县林业局,福建尤溪365100
出 处:《世界竹藤通讯》2015年第3期18-20,共3页World Bamboo and Rattan
摘 要:试验研究了温度因子对绿竹林优质笋产量的影响。结果表明:优质笋所占比例的年度变化呈现低—高—低—高的变化过程;当日均气温26.0℃、地温Ⅱ27.4℃时,优质笋所占比例最高;而当日均气温27.9℃、地温Ⅱ30.6℃时,优质笋所占比例最低;在温度因子中,日最高气温(x2)、10 cm处的地温(x4)和20 cm处的地温(x5)对优质笋产量的影响最为明显,其回归方程为:y=-0.0270 x2+0.1470 x4-0.1624 x5-1.8653。The effect of temperature on the yields of quality Bambusa oldhamii shoot was studied through experiments. The results showed that the annual change in the percentage of quality shoot presented the low-highlow-high change curve. When the diurnal mean temperature was 26.0 ℃and the soil temperatureⅡ was 27.4 ℃, there was a highest percentage of quality shoot, while the quality shoot took up a lowest share when the diurnal mean temperature was 27.9 ℃ and the soil temperatureⅡ was 30.6 ℃. Among temperature factors, the highest diurnal temperature(x2), 10cm-soil-temperature(x4), and 20cm-soil-temperature(x5) were the three factors which imposed the most significant effect on the yields of quality shoot, and its regression equation was y = y =-0.0270 x2 + 0.1470 x4-0.1624 x5- 1.8653.
分 类 号:S795[农业科学—林木遗传育种]
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