Production Capacity of Several Hybrid Genotypes of Jatropha curcas Linn. for Five Years in Pasuruan, East Java – Indonesia.

Jatropha curcas Linn. is one of shrubs mainly exist in tropical
area. The research team has succeeded to produce several excellent hybrid
genotypes which then were planted to be tested its production capacity for 5
yr. Those genotyes were: genoptype 5 (HS49 × SP34), genotype 6 (HS49 ×
SM35), genotype 7 (HS49 × IP1A), and genotype 18 (SP16 × SM35). This
research aims at finding out the production capacity of several hybrid
genotypes of J. curcas Linn. which was conducted for 5 yr in Kedung
Pengaron, Pasuruan. The research was arranged in Randomized Complete
Block Design with four repetitions. Each block contained 20 plants, with
plant treatment of hybrid result of genotype 5 (JC5), 6 (JC6), 7 (JC7), 18
(JC18) and two comparators of IP3A and IP3P. Observation was conducted
on the number of fruit bunches and fruit on each plant, the number of fruit
per plant, seed dry weight per plant. The study showed that J.curcas hybrids
of genotypes JC5, JC7 and JC18 had higher production capacity (in term of
number of fruit per plant, seed dry weight per plant and dry weight of 100
seeds) than other genotypes (JC6, IP3A, IP3P) in environment with drought
stress.