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我省甘薯主要分布在闽东南沿海地区,甘薯产量在一定程度上受生长期间降雨量和灌溉条件的影响.沿海丘陵农地,土壤瘠薄,风力大,保水保肥力差.因此,选育抗旱性强的品种,对获得甘薯高产稳产具有重要作用.为了鉴定不同品种的抗旱能力,根据各品种在丘陵农地栽培,依靠自然供水的方法,探讨某些性状表现与产量的相关程度,为选育抗旱品种提供简易鉴定的可能性.本试验试图从叶形、主蔓长、蔓重、茎粗、分枝数、叶片大小、叶片含水量、成活率、薯块烘干率等
The sweet potato in our province mainly distributes in the coastal area of southeast Fujian, and the production of sweet potato is influenced to a certain extent by the rainfall and irrigation conditions during the growth period.However, In order to identify different varieties of drought-resistant ability, according to various cultivars in the hilly farming land, relying on the natural water supply, to explore the correlation between the performance of some traits and yield for the breeding Drought resistant varieties provide the possibility of simple identification.This experiment attempts from the leaf shape, the main vine length, vine weight, stem diameter, number of branches, leaf size, leaf water content, survival rate, tuber drying rate