瓜类与宿根甘蔗套种对产量品质的效应

Effect of ratoon sugarcane and melons interplanting on yield and quality

研究瓜类与宿根甘蔗不同的套作模式对瓜类、甘蔗产量品质的影响,为瓜类合理套作甘蔗提供科学依据。方法:以广西农科院蔬菜所育成的桂蜜2号薄皮甜瓜、丰成2号蜜本南瓜与桂糖21号宿根蔗进行套种,研究适合的瓜类与宿根甘蔗套种模式。结果:甘蔗行距为1.1m的常规行距套种甜瓜,甘蔗的产量最高,为5470.39kg/667m2,甘蔗蔗糖、锤度、重力纯度、蔗汁蔗糖分等甘蔗品质指标最优分别为11.84%、14.72、86.14%和14.15%,同时提高甜瓜的品质。甘蔗常规行距套种瓜类的产量品质比套种在宽窄行距的瓜类产量品质要高,套种在1.1m常规行距的南瓜和甜瓜比套种在宽窄行距的产量分别高13.10%、18.14%,可溶性固形物的含量分别高14.59%、19.24%,南瓜的维生素C含量高24.54%和1.08%,β—胡萝卜素含量则高7.5%。与新植蔗套种瓜类有相同的趋势。建议生产上采用1.1m的常规行距种植甘蔗与甜瓜套种。

To study the effects of different interplanting modes of melons and ratoon sugarcane on yield and quality so as to provide scientific basis for reasonable interplanting of ratoon sugarcane and melons. The Guimi No. 2 thin - skin melon and the FC2 honey pumpkin are interplanting with GT21 ratoon sugarcane. The interplanting is designed to test the suitable melons and sugarcane interplanting mode. The result of the 1.1 meters sugarcane row distance interplanting mode shows that the highest sugarcane yield is 5470.39 kg/667m2, with the optimal sugarcane quality indicators such as sugarcane sucrose content, brix, gravity purity content, sugarcane juice sucrose content reach at 11.84%, 14.72, 86. 14% and 14.15% respectively,and improvement of melons qualities. The yield and quality of melons which interplanted in 1.1 miters row distance are higher than the wide and narrow row distance inter- planting conditions, and have been respectively increased with 13.10% and 18.14%. The percentages of soluble solid content respectively rise by 14.59% and 19.24%. Besides, the content percentage of vitamin C in pumpkin rises by 24.54% and 1.08%, content percentage of beta carotene in pumpkin by 7.5%. The ratoon sugarcane have the same trend in new - planting sugarcane interplant melons system. So the 1.1 meters row distance is recommended in the pumpkins and melon interplanting.