商品基质对西瓜嫁接苗生长的影响

Effect of commercial substrates on stock and grafted seedling growth in watermelon

研究了4种常用的育苗基质对砧木(瓠瓜)和西瓜嫁接苗生长的影响。结果发现,‘金色1号’和‘金色3号’基质培育的砧木茎矮、苗壮,嫁接苗叶数增加快,为理想的育苗基质。‘中慈1号’基质培育的嫁接苗发病率低、成苗率高,但育苗过程中的水分管理困难。‘发发得’基质培育的砧木发芽速度快,但由于其营养水平低,中后期管理应及时补充营养。

In this experiment, the effects of four substrates on growth of stock （ Lagenaria leucantha Rusby. , L. siceraria Standl. ） and watermelon grafted seedling. It was found that the stock seedling was strong with low hypocotyl length, and the leaf growth rate of graft seedling was high when cultivated in ‘ Golden 3＇ and ‘ Golden 1 ＇ substrates, which were ideal substrates. The graft seedling showed low disease rate and high survival rate when cultured in ‘ Zhongci 1 ＇ substrate, but it was difficult to manage the water. The seed germination rate of stock in ‘ Fafard＇ substrate was higher than other three ones, but it was necessary to add fertilizer in middle and late growth stage for the lack of nutrition.