Alteration of Antioxidative System to Chilling Stress in Two Weedy Rice (Oryza sativa L.) Germplasms Contrasting in Sensitivity
2006
Sohn, Y.G. (Jinju National University, Jinju, Republic of Korea) | Lee, Y.H. (Gyeongsangnam-do Agricultural Research and Extension Services, Jinju, Republic of Korea) | Ha, J.K. (Gyeongsang National University, Jinju, Republic of Korea) | Nam, J.S. (Gyeongsang National University, Jinju, Republic of Korea) | Lee, J.J. (Gyeongsang National University, Jinju, Republic of Korea), E-mail: [email protected]
We conducted the physiological comparisons to improve understanding of chilling-tolerant mechanisms in the two weedy rice (Oryza sativa L.) germplasms differing in sensitivity, the one (Dalseong-aengmi 44) is tolerant but the other one (Hwaseong-aengmi 4) is sensitivity to chilling. The leaves of Dalseong-aengmi 44 was curled and dehydrated partly by chilling stress, but the damage of Hwaseong-aengmi 4 was little. Under chilling stress, reduction of water content and increase of lipid peroxidation in Dalseong-aengmi 44 were notable more than in Hwaseong-aengmi 4.
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