Authors:
Nurhayati
1
;
Murni Sari Rahayu
2
;
Yenni Asbur
1
and
Radite Tistama
3
Affiliations:
1
Lecturer on Department of Agrotechnology, Faculty of Agriculture, Islamic University of North Sumatera, Medan, Indonesia
;
2
Lecturer on Department of Agrotechnology, Faculty of Agriculture, Islamic University of North Sumatera, Medan,, Indonesia
;
3
Rubber Research Institute, Sungai Putih, Deli Serdang, North Sumatra, Indonesia
Keyword(s):
Stimulant, PEG, Clone PB 260.
Abstract:
The research was aimed to obtain PEG based alternative stimulant formulation to increase Latex yield and accelerate renewable bark recovery of clone PB 260. This research was conducted at PTPD Paya Pinang Plantation, Lau Tador, in Tebing Tinggi, Regency of Deli Serdang, North Sumatera. The research site is at 25 m above sea level with Ultisol soil type. This research is to study the difference of observation variable of g/p/s, bark thickness, number of latex vessels, plugging index. The results showed that stimulant had significant effect on the production of g/p/s, and very significant effect on bark thickness, number of latex vessels and plugging index. PEG applications increase production of g/p/s, bark skin, number of latex vessels, plugging index. The combination of stimulant and PEG has very significant effect on the production of g/p/s, bark thickness, plugging index.