Journal of Taiwan Agricultural Research

Author:Shu-Hui Yang, Guang-Jauh Shieh* and Shu-Tu Wu

Abstract:

    Tainan-White (TNW) is a native maize population which has been cultivated for over 80 years in Taiwan. TNW has been traditionally ultilized as a green corn. Eight Tainan-White maize populations collected from Pingtung, Kaohsiung, Tainan, Yunlin, Taichung, Taipei, Hualien and Taitung areas were planted at Taichung, and then, the produced seeds were used to study the effect of different temperatures on seed germination from 5-40℃ in growth Chanber. The optimum temperatures for seed germination of Pingtung, Tainan, Yunlin, Taichung, Hualien and Taitung populations were 25～30℃ and while the optimum temperature for Kaohsiung and Taipei populations was 30℃. The maximum temperatures for germination of eight populations were 40～45℃. Regression analysis showed that the minimum temperatures for seed germination were in the range of 2.9～3.5℃, and the thermal time of germination was in a range of 55.1℃～59.0℃d.

Key words:Tainan-White, Maize, Germination, Temperature

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