Baker E A, Hunt Grace M
University of Bristol, Long Ashton Research Station, Bristol, BS18 9AF, UK.
New Phytol. 1986 Jan;102(1):161-173. doi: 10.1111/j.1469-8137.1986.tb00807.x.
Effects of simulated rain on the epicuticular wax of glaucous leaves have been studied. Droplets (250 to 400 μm) travelling at low or medium velocity (0.25 to 5 m s ) fractured the dendrites and tubes on leaves of Brassica spp., the tubes on Eucalyptus globulus Labillardere and the ribbons on the adaxial surfaces of Pisum sativum L. and Fragaria ananassa Duchesne. Rates of erosion for Brassica and E. globulus leaves were high during an initial application equivalent to 1 mm rainfall but declined markedly with extended exposure. In contrast, erosion from P. sativum and F. ananassa proceeded at a fairly uniform rate throughout the exposure period. The composition of the detached wax deposits was identical with that of the intact leaf wax for Brassica species but differed for the other species. The practical consequences of wax erosion of field crops are considered.
研究了模拟降雨对被蜡质叶片表皮蜡质的影响。低速或中速（0.25至5米/秒）移动的水滴（250至400微米）会破坏芸苔属植物叶片上的树枝状晶体和管状结构、蓝桉叶片上的管状结构以及豌豆和草莓叶片正面的条带状结构。在相当于1毫米降雨量的初次降雨期间，芸苔属植物和蓝桉叶片的侵蚀速率很高，但随着暴露时间延长，侵蚀速率显著下降。相比之下，豌豆和草莓在整个暴露期间的侵蚀速率相当均匀。对于芸苔属植物，脱落蜡质沉积物的成分与完整叶片蜡质相同，但其他物种不同。文中还考虑了大田作物蜡质侵蚀的实际影响。
