温州蜜柑幼树茎叶生长对红壤水分的响应

Effects of Soil Moistures on the Growth of Stem and Leaves of Young Satsuma Mandarin (Citrus Unshiu Marc.)

通过控制土壤含水量,定量研究了红壤相对含水量(SWC)对温州蜜柑幼树茎叶生长参数的影响。结果表明,柑橘叶面积、叶周长、叶宽,梢长、茎长和距根部10cm茎直径,均在SWC75处理时达最大值,分别为12.25±2.61cm、13.84±1.43cm、3.19±0.39cm,23.64cm、56.08cm和1.78cm,且与SWC30、SWC45、SWC60、SWC75处理间差异显著。柑橘茎叶生长与土壤相对含水量(SWC)之间有一定的相关性,并随着SWC的增加或减少,其生长量都受到了一定程度的影响。柑橘茎叶的生长指标表明,红壤上种植温州蜜柑的土壤相对含水量在75%为宜。

The effects of red soil moisture on stem and leaves growth of yang trees of Satsuma Mandarin（Citrus unshiu Marc.） under different soil water contents（SWC） were studied. The results showed that maximums of the leaves area, the leaves perimeter, the blade tip length, the stem length and diameter of the stem which was ten centimeters long from roots all arrived when the soil relative water content was 75%, namely SWC75 treatment. The maximum was respectively 12.25±2.61cm2, 13.84±1.43cm, 3.19±0.39cm, 23.64cm, 56.08cm and 1.78cm. The SWC75 treatment had a respectively significant difference with SWC30, SWC45 and SWC60 treatment. There was a certain correlation between stem and leaves growth and SWC. It showed that the SWC of 75% was better soil moisture condition for the growth of stem and leaves of Satsuma Mandarin than ones.