Breeding work to evolve clones having high yield and desirable secondary characters was started by the Rubber Research Institute of India in 1954. This has enabled selection of a few outstanding clones.

Cultivars approved by the Rubber Board and recommended for planting are classified into different clones.The clones approved for large scale planting are RRII 105, PB 260, RRII414 and RRII 430 for the traditional regions and RRIM 600 and GT1 for the non-traditional regions. Short notes on cultivars for the traditional region are listed below:

1. RRII 105 : A clone evolved by the RRII and currently enjoying maximum popularity in the country. Parents are Tjir 1 and GI 1.Yield is very good.
2. PB260 : A hybrid clone developed by the Prang Besar Estates Ltd. in Malaysia. Parents are PB 5/51 & PB 49. Yield is high.
3. RRII 414 : The parents of this clone are RRII 105 & RRIC 100. Yield is high. Incidence of pink disease and abnormal leaf fall are moderate while the clone is relatively tolerant to Corynespora.
4. RRII 430 : Parents are RRII 105 & RRIC 100. The clone has above average girth at opening. Yield is high. Incidence of Oidum is very high while incidence of and abnormal leaf fall, pink disease and Corynespora leaf fall are low.
5. RRIM 600 : A high yielding clone evolved by the Rubber Research Institute of Malaysia. Parents are Tjir 1 & PB 86. Initial yield above average . Subsequent yield very high
6. GT1 : A primary clone developed in Indonesia. This clone shows rising yield trend. Summer yield fairly high.

SECONDARY CHARACTERS OF NEWLY RELEASED CLONES BY RUBBER BOARD
Parameters	RRII-414	RRII-430	RRII-105
Grith at opening	High(>55cm)	Above average(>50)	Average
Trunk	Tall, Straight and Cylindrical with prominent leaf scar, slightly leaning	Tall, Straight and Cylindrical stem with smooth bark	Tall and Straight
Number of latex vessel rows	Above Avg. in both virgin and renewed bark(>)11	Above Avg. in both virgin and renewed bark(>)11	Above Average
Occorane to wind damage	Average	Low	Medium
Occorane to T P D (Tapping Pannel Dryness)	Low (based on observation on 12 trees over 11 year of Tapping)	Low (based on observation on 12 trees over 11 year of Tapping)	High
D R C	Above Avg.>36	High > 39	High
Remarks	Yield better than RRII-105 in the first years of tapping in the farm Trial and Comparable to that of RRII-105 in the multi location trial

PERFORMANCE OF RRII-400 SERIES CLONES
Clone	Yield(gm/Trees/Tap)		Girth at Opening(CM)		Improvement in Yield Over RRII-105(%)
	SST(Mean Over 11 years) SST-Small Scale Trial	LST(Mean Over 4 years) LST-Large Scale Trial	SST	LST	SST	LST
RRII-414	74.02	56.68	57.49	50.76	40	32.95
RRII-417	70.52	53.06	54.73	47.75	33	25.53
RRII-422	64.94	61.16	52.40	51.80	23	23.25
RRII-429	77.82	49.42	62.77	44.23	46	18.22
RRII-430	63.37	61.09	53.42	54.26	20	23.14
RRII-105	52.89	44.89	49.04	42.36	-	-

Available Clones

	RRII-105	RRII-414	RRII-430	RRII-417	RRII-422	RRII-429	PB-260	PB235
Young Bud Polybag Plants
Green Bud Polybag Plants
Brown Bud Polybag Plants
Young Bud Polybag Stumbs
Green Bud Stumbs
Brown Bud Stumbs
	Avilable			Recommended by us			Booking Needed