含钙药剂浸种对木薯产量和品质的影响

Effect of seedling soaking by some sorts of medicaments upon the yield and quality of cassava

以‘华南8号’为试验材料,研究不同含钙药剂浸泡种茎24 h对木薯产量和品质的影响。试验共设1.0%石灰水（A1）、2.0%石灰水（A2）、1.0%氯化钙（A3）、2.0%氯化钙（A4）、云大–120稀释3 000倍液（CK1）和清水（CK2）共6个浸种处理,将不浸种处理对照记为CK3。结果表明：1A1～A3木薯的成活率较其他处理的高,其成活率均约为94.4%。2A1～A4处理可加快木薯地上部分生长,但各处理间的差异无统计学意义;CK1木薯的生长最快,地上部分长势最好。3A1～A3处理可显著增加鲜薯产量、薯干产量和淀粉产量;A4、CK2和CK1处理的增产效果不明显。4鲜薯产量与种茎成活率呈极显著正相关,淀粉产量和薯干产量与单株鲜薯重呈极显著正相关。

The effect of seedling soaking by some sorts of medicaments for 24 h upon the yield and quality of cassava were discussed by using cassava variety of Manihot esculenta Crantz（SC8）. The investigation indicated that 1.0% and 2.0% of limewater solution and 1.0% of calcium chloride solution have the higher survival than other treatments, reached 94.4%; The treatment which using 3 000 times of Yunda–120 solution grown most fast than other treatments. The treatments with 1.0%, 2.0% limewater and 1.0%, 2.0% calcium chloride may accelerate the growth of the aerial part of cassava, but the difference was not significant. The fresh root yield, dry root yield and starch yield could increase with 1.0% and 2% of limewater solution, 1.0% of calcium chloride solution, while had no effect on above three yield with clean water, 2.0% of calcium chloride and 3 000 times of Yunda–120 solution compared with the non-soaking treatment（CK）. And correlation analysis indicated that fresh root yield and seed stem survival rate were very significant correlation, and that starch yield and plant fresh root weight were very significant correlation.