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对8种苹果砧木(M_(27)、M_9、M_(26)、M_7、MM_(106)、M_(11)、M_(16)和垂枝型海棠果)以浸水处理,观察其对苹果砧木的生长与某些生理变化的影响。在1980和1981年生长季节,对栽于塑料温室内的一年生砧木圃(利用根插或压条繁殖)灌水,使水高出地表面几厘米,浸水30天。研究结果表明,浸水后降低了所有试验砧木茎的生长,但降低程度因砧木种类不同差异很大。M_ 砧对浸水最敏感,浸水10天后就停止生长,叶片显示出受害症状。海棠果耐水性最强,其长势仅有少量的减弱,且在整个试
Eight apple rootstocks (M 27, M 26, M 7, MM 106, M 11, M 16 and weeping apple) The growth and the impact of some physiological changes. During the 1980s and 1981 growing seasons, the annual rootstocks planted in plastic greenhouses (multiplied by rooting or battens) were flooded to raise the water a few centimeters above the surface and for 30 days. The results showed that after soaking, the growth of stems of all tested rootstocks was reduced, but the degree of reduction was very different due to the different types of rootstocks. M_ anvil the most sensitive to flooding, flooding 10 days to stop growing, the leaves showed symptoms of victimization. Begonia fruit strongest water resistance, its growth is only a small amount of weakening, and throughout the trial