PHYSIOLOGYCAL RESPONSES OF RICE SEEDLINGS UNDER DROUGHT STRESS

Received: 02-06-2014

Accepted: 15-08-2014

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Issue: Vol. 12 No. 5 (2014)

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NÔNG HỌC

How to Cite:

Ha, P. (2024). PHYSIOLOGYCAL RESPONSES OF RICE SEEDLINGS UNDER DROUGHT STRESS. Vietnam Journal of Agricultural Sciences, 12(5), 635–640. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/147

PHYSIOLOGYCAL RESPONSES OF RICE SEEDLINGS UNDER DROUGHT STRESS

Phung Thi Thu Ha (*) 1

  • 1 Khoa Nông học, Học viện Nông nghiệp Việt Nam

    • Keywords

    Antioxidant enzyme, chlorophyll, drought stress, MDA(malondialdehyde), rice Seedlings

    Abstract


    Lúa là một trong những cây lương thực quan trọng bậc nhất trên thế giới. Trong nghiên cứu này chúng tôi nghiên cứu phản ứng sinh lý của giống lúa Oryza sativacv. Dongjin trong điều kiện khô hạn. Kết quả nghiên cứu cho thấy,cây lúa 3 tuần tuổi bắt đầu biểu hiện kiểu hình lá cuộn lại và khô sau 48h dừng tưới nước. Cùng với sự mất nước trong lá và giảm thế hóa nước trong thân,các gốc tự do như H2O2và malondialdehyde cũng được tích lũy. Điều đó dẫn tới hiệu suất quang hợp giảm mặc dù hàm lượng chlorophyll giảm không đáng kể.

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