Journal of Taiwan Agricultural Research

Author:Min-Fu Hu,Jin-Long Jianf,Tsai-Li Koun,Hsiu-Ying Lu, Sin-Yie Liu

Abstract:

 

Two promising Hsian-taso strains, 78-S-1 and 78-T-1 selected at TARI, were planting at 5 locations in northern, central and sorthem parts of Taiwan in 1994 and 1995, to investigate the effects of climatic factors on plant growth, performance of agronomic characteristics, gel formation strength, and yield stability of Hsian-tsao. The results found that precipitation played a more important role for the growth of Hsian-tsao than air temperature and sunshine duration factors. Both 78-S-1 and  78 午    1 strains planted at Shui

-Shang and Taichung had higher average dry-plant yield and  dry-leaf  yield per hectare

than those of grown at other locations, however, TYY3 and TTY4 strains performanced the best in both characters at Tao-Yuan and Hsin-Chu. Results showed that TYY3 strain had higher gel formation strength at any location following by 78-T-1 and 78-S-1 strains with TYY4 strain the lowest. Results from combined  analysis of  variance on the performances of average dry-plant yield, average dry-leaf yield and average gel formation strength found that mian effect of location and interaction effects among three strains with locations were significant at 1% level on the performances of three characters as well as average dry-leaf yield and average gel formation strength among three strains. Results from estimating environmental index and found that the best location for growing Hsian-tsao plants was at Shui-Shang with Miao-Li the worst. Results from analyzing yield stabilities showed that TYY3 strain was more stable in average dry-plant yield  and average dry-leaf  yield  than78

-S-1 and 78-T-1 strains. Strain 78-T 一 1 has higher potential in average dry- plant yield than TYY3 in good environment, while 78-S-1 strain with stable but low dry- leaf yield was good but unstable in average dry-plant yield. Results from comparing stability of average gel formation strength among three Hsian-tsao strains found that 78 午 1  strain  was  more stable, while TYY3 strain was unstable with the best gel formation strength.

 

Key words: Hsian-tsao, Estimated value of environmental index, Stability analysis.

Download: PDF Links