The effect of suboptimal temperature on vigor of primed bitter gourd seeds

碩士 === 國立中興大學 === 農藝學系 === 86 === Bitter gourd seeds are generally lower in emergence percentage and longer in emergence time. In this study, seeds of two bitter gourd varieties (Special Six and Moon Shine)were subjected to different priming...

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Main Authors: Lin, Jiun Ming, 林俊明
Other Authors: Jin-Min Sung
Format: Others
Language:zh-TW
Published: 1998
Online Access:http://ndltd.ncl.edu.tw/handle/82202888541913666128
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spelling ndltd-TW-086NCHU14170022015-10-13T11:03:32Z http://ndltd.ncl.edu.tw/handle/82202888541913666128 The effect of suboptimal temperature on vigor of primed bitter gourd seeds 次適溫對萌爆處理後苦瓜種子活勢之影響 Lin, Jiun Ming 林俊明 碩士 國立中興大學 農藝學系 86 Bitter gourd seeds are generally lower in emergence percentage and longer in emergence time. In this study, seeds of two bitter gourd varieties (Special Six and Moon Shine)were subjected to different priming treatments(solid priming (SP), liquid thermo-priming (LP) and a combination of solid and liquid-thermo priming (LP+SP)).Both primed and non-primed seeds were emerged under norm temperatures(25℃) sub-optimal temperatures( 20℃)and low temperatures(15℃). The results indicated that sub-optimal temperatures lowered the emergence percentage and increased emergence time of bitter gourd seeds. However, priming alleviated this problem to some extend. Electrolyte leakage test confirmed the benefit of priming on seed vigor. Scanning electron microscope examination revealed a loose structure of seed coat in comparison with non-primed controls. X-ray examination also revealed that primed seeds tended to have a smaller unfilled free space compared to that of controls. In addition, priming also increased the activities of isocitrate lyase, malate synthase and malate dehydrogenase during seedling emergence under sub-optimal temperature. Among the three priming treatments, liquid thermo-priming plus solid priming was the best method to overcome the poor sub-optimal emergence of bitter gourd seeds. Jin-Min Sung 宋濟民 --- 1998 學位論文 ; thesis 64 zh-TW
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language zh-TW
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description 碩士 === 國立中興大學 === 農藝學系 === 86 === Bitter gourd seeds are generally lower in emergence percentage and longer in emergence time. In this study, seeds of two bitter gourd varieties (Special Six and Moon Shine)were subjected to different priming treatments(solid priming (SP), liquid thermo-priming (LP) and a combination of solid and liquid-thermo priming (LP+SP)).Both primed and non-primed seeds were emerged under norm temperatures(25℃) sub-optimal temperatures( 20℃)and low temperatures(15℃). The results indicated that sub-optimal temperatures lowered the emergence percentage and increased emergence time of bitter gourd seeds. However, priming alleviated this problem to some extend. Electrolyte leakage test confirmed the benefit of priming on seed vigor. Scanning electron microscope examination revealed a loose structure of seed coat in comparison with non-primed controls. X-ray examination also revealed that primed seeds tended to have a smaller unfilled free space compared to that of controls. In addition, priming also increased the activities of isocitrate lyase, malate synthase and malate dehydrogenase during seedling emergence under sub-optimal temperature. Among the three priming treatments, liquid thermo-priming plus solid priming was the best method to overcome the poor sub-optimal emergence of bitter gourd seeds.
author2 Jin-Min Sung
author_facet Jin-Min Sung
Lin, Jiun Ming
林俊明
author Lin, Jiun Ming
林俊明
spellingShingle Lin, Jiun Ming
林俊明
The effect of suboptimal temperature on vigor of primed bitter gourd seeds
author_sort Lin, Jiun Ming
title The effect of suboptimal temperature on vigor of primed bitter gourd seeds
title_short The effect of suboptimal temperature on vigor of primed bitter gourd seeds
title_full The effect of suboptimal temperature on vigor of primed bitter gourd seeds
title_fullStr The effect of suboptimal temperature on vigor of primed bitter gourd seeds
title_full_unstemmed The effect of suboptimal temperature on vigor of primed bitter gourd seeds
title_sort effect of suboptimal temperature on vigor of primed bitter gourd seeds
publishDate 1998
url http://ndltd.ncl.edu.tw/handle/82202888541913666128
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