论文部分内容阅读
以云南黑籽南瓜（Ｃｕｃｕｒｂｉｔａ ｆｉｃｉｆｏｌｉａ）作砧木，适宜的黄瓜品种作接穗进行嫁接，不仅可防病，而且能增产。防治枯萎病效果为７８．３％～１００％，对疫病也具有高度抗性，并能减轻白粉病。嫁接黄瓜植株健壮，根系发达，生长到４叶期时，比自根苗根重增加２２．０％～５０．９％，叶面积扩大４４．０％～６９．５％，叶绿素含量提高３．６％～１１．７％。嫁接苗根、茎、叶的氮、钾含量减少，磷含量增加。由于嫁接黄瓜生长发育快，前期产量比不嫁接苗增加２９．７％～８９．７％，总产量增加１５．１％～４６．７％，比主栽品种长春密制增产２２．７％～８３．９％。嫁接的品种不同，防病和增产效果有一定差异，应选用抗霜霉病、生长势强的杂种一代作接穗。
Taking Cucurbita ficifolia as rootstock and suitable cucumber varieties for scion grafting can not only prevent diseases but also increase yield. Fusarium wilt prevention and treatment of the effect of 78.3% to 100%, is also highly resistant to the disease, and can reduce powdery mildew. Grafted cucumber plants are robust and have developed root systems. When grown to the 4-leaf stage, the grafted cucumber is 22.0% -50.9% heavier than the self-rooted roots, with leaf area expanded by 44.0% -69.5% and chlorophyll content by 3.6 % ~ 11.7%. Grafted seedlings roots, stems and leaves of nitrogen and potassium decreased, phosphorus content increased. As the rapid growth of grafted cucumber, pre-production than the non-grafted seedlings increased 29.7% ~ 89.7%, the total output increased 15.1% ~ 46.7%, than the main variety Changchun dense yield 22.7% 83.9%. Different varieties of grafting, disease prevention and yield effects have a certain difference, the selection should be anti-downy mildew, growing strong hybrid generation as a scion.