Selection for drought-resistant rice (Oryza sativa L.) using polyethylene glycol

2nd International Conference on Natural Resources and Life Sciences

生态环境科学

Purbajanti, E.D.^1 ; Kusmiyati, F.^1 ; Fuskhah, E.^1 ; Rosyida, R.^1 ; Adinurani, P.G.^2 ; Vincvia-Gaile, Z.^3

Agriculture Department, Faculty of Animal and Agricultural Sciences, Diponegoro University, Jalan Prof Sudharto SH, Tembalang, Semarang

50275, Indonesia^1

Faculty of Agriculture, Merdeka University of Madiun, Jl. Serayu No.79, Pandean, Madiun

63133, Indonesia^2

Plant Cell Culture, Departement of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O. Box 10, Kuala Lumpur 50728, Malaysia^3

关键词: Breeding drought resistant;    Early selection;    initial selection;    Tolerance mechanisms;    Water stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/293/1/012014/pdf
DOI  :  10.1088/1755-1315/293/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The study was expected to provide information poly ethylene glycol (PEG) concentration that can be used for plant breeding base rice (Oryza sativa L.) plant. The research was conducted covering two experimentals stage, were (i). Tests of dry stress resistance of six cultivars of rice using PEG 6000, and (ii). Emerged test seeds of six rice cultivars that have been subjected to dry stress with PEG 6000. The treatments were designed based on a complete randomized design of two factors. The first factor used six cultivars of rice were cv.Mekongga, cv. Way Apo Buru, cv. Sidenuk, cv. Pepe, cv. Ciherang and cv. IR64. and the second factor was dry stress [(0, 5, 10 and 15) % of PEG] with replicates three times. The higher concentration of PEG lowered growth rate (GR), emergence rate (ER), germination energy (GE) and the relative germination rate on all cultivars of rice. Germinate the longer time, appropriate concentrations of PEG. Test of pre-emergence on soil giving the mixed response on all cultivars of rice and PEG level. Cv. Mekongga, cv. Sidenuk, cv. Pepe and cv. Ciherang have the ability to grow on soil test. Canopy and root length highest on cv. IR64. Cv. Sidenuk popularity score can be classified moderate tolerance, while cv. Pepe that was sensitive to drought stress.