The drought stress tolerance of physic nut (Jatropha curcas Linn.) genotypes

2nd International Conference on Natural Resources and Life Sciences

生态环境科学

Maftuchah^1 ; Fahmi, I.Z.^1 ; Zainudin, A.^1 ; Ikhwan, A.^1 ; Djumali^2 ; Kuan, L.K.^3

Agriculture and Animal Science Faculty, University of Muhammadiyah Malang, Jl. Raya Tlogomas 246, Malang, East Java

65144, Indonesia^1

Research Centers for Sweeteners and Fibers, Jl. Raya Karangploso, Malang, East Java

65144, Indonesia^2

Nippon Biodiesel Fuel, 655 Chiyo, Odawara-city, Kanagawa

250-0251, Japan^3

关键词: Alternative energy source;    breeding;    Drought stress;    Drought stress tolerance;    Drought tolerances;    Field capacity;    Jatropha curcas;    Renewable energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/293/1/012029/pdf
DOI  :  10.1088/1755-1315/293/1/012029

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Physic nut (Jatropha curcas Linn.) is one of tropical plant that has a potential as an alternative energy source. This study aimed at finding out the drought tolerance level of six genotypes of J.curcas based on the morphology and production of the first harvest time. The plant was treated under a condition of 100 %, 70 % and 40 % field capacity. The tested genotypes were 5-1-14 (SP8 × SP16), 6-2-10 (SP8 × SP38), 7-2-8 (SP33 × HS49), 18-1-14 (SM35 × SP38), IP3A and IP3P. The drought stress of 40 % ground water inhibited the plant vegetative and generative growth (the amount of leaves, male flower, carpel, hermaphrodite flower and the percentage of formed fruit) while at the same time it tended to reduce the amount of fruit and the seeds' dry weight. The level of drought that reached 70 % resulted in the reduce of seeds' dry weigh up to 87.76 % and upon 40 % of drought level, the seeds' dry level was reduced nearly to 97.92 %. At 40 % moisture content, the highest percentage of fruit formation is achieved by genotypes 5-1-14 and 6-2-10.