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IJSTR >> Volume 6 - Issue 9, September 2017 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Aplication Of PGR IAA And Kinetin On Rubber Clones To Accelarate Mature Tapping

[Full Text]

 

AUTHOR(S)

Try Koryati

 

KEYWORDS

rubber clones, immature plant periods, IAA hormones, Kinetin

 

ABSTRACT

This study aims to determine the most appropriate concentration of IAA hormones + Kinetin on rubber clones to accelerate the mature tapping. Experiments have been carried out in Karang Inong Plantation, PTP N I Langsa, East Aceh. This study is arranged in two factors of Nested Design. Clones factor is consisted of 5 level and IAA hormon + Kinetin factor has 7 levels. The results showed that the concentration of IAA hormones + Kinetin is different to each clone to accelerate mature tapping. Application of IAA hormone + Kinetin significantly affect the parameters of girth, bark thickness, number of latex vessels, latex vessel diameter, leaf area and the amount of chlorophyll. Application of IAA 600ppm + Kinetin 60 ppm (H6) show the largest increase on the girth. Clone treatment is also has significant effect on all parameters, but the largest girth found in clones PB 330 and IRR 5. Combination of Clones with IAA hormone + Kinetin significantly affects the bark thickness, the number of latex vessels and latex vessel diameter. Application of IAA 400 ppm + Kinetin 60 ppm has no significant effect on girth, but able to accelerate the mature tapping particularly for clones PB 330 and IRR5 (K2H4 and K5H4) as indicated by girth size namely 48.15 cm and 48.20 cm respectively at planting age 46 months.

 

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