Aplikasi Asap Cair Limbah Tempurung Kelapa untuk Menekan Pertumbuhan dan Perkembangan Jamur Akar Putih (Rigidoporus microporus) pada Okulasi Bibit Karet (Hevea brasiliensis)

Abstract

This research was conducted in Universitas Medan Area Laboratory (for invitro test) and for field test was conducted at Durin Tonggal Village Ujung Bandar, Sub-district. Pancur Batu, District. Deli Serdang from April to July 2016. Research Laboratory using Completely Randomized Design (CRD) Non Factorial with 6 treatments and 4 replications. In the field using Randomized Block Design (RBD) Non factorial with 6 treatments and 4 replications. On research in the Laboratory the treatment of the Trichoderma sp (control positive), Without the Trichoderma sp and liquid smoke (control negative) and various concentrations of the liquid smoke (0,5%, 1%, 1,5%, 2% per water liter). On researh in field the treatment of the Trichoderma sp(control positive), without the Trichoderma sp and liquid smoke (control negative) and various concentrations of the liquid smoke ( 5ml, 10 ml, 15ml, 20ml, per water liter). The results of laboratory research showed that the application of the liquid smoke of coconut shell with concentrate 1,5% and 2% of water, have the ability to suppress the growth of colonies the white root mushroom (Rigidoporus microporus) most effectively. The results of research in the field indicate that treatment of liquid smoke of coconut shell with concentrate 15 ml and 20 ml per water liter have ability to raise the high growth of rubber seeds, the amount of rubber seeds, to reduce the volume of infected root and supress the intensity of the attacks on 28th day after the application of liquid smoke.