Study on characteristics of hybrid yam (Dioscorea opposita cv.Yamatoimo x cv.Nagaimo)

杂交山药（Yamatoimo x cv.Nagaimo）特性研究

• 批准号: 05660026
• 负责人: ARAKI Hajime
• 金额: $ 1.34万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05660026/
• 关键词: Dioscorea; Hybrid; Sex; Tuber shape; Tuber quality; Working hour; 画像処理; 組織培養特性; ムカゴ; 粘度; 組織培養

Hybrid yam plants (D.opposita cv.Yamatoimo x cv.Nagaimo, 15 lines) were planted in Experimental Farm of Niigata University and their tuber shape and quality, sex and aerial tuber formation were investigated. The variations with regard to fullness and elongation were recognized in tuber shape of hybrid yam. Slender shape tubers and clump shape tubers (YN3 and YN9) were observed. A correlation between leaf shape and tuber shape was not recognized. A relationship between the ratios of width/length in the tubers among cultivating years was recognized. Working hours for harvesting tuber decreased in 2lines with clump shape tuber (YN3 and YN9) compared with cv.Nagaimo. Aerial tuber was formed in all hybrid yam plants but its quantity was small compared with cv.Nagaimo. Fale flowers were observed in 9 lines and femal flowerwas not observed until now. There was alarge difference in water content of tuber between cv.Yamatoimo and cv.Nagaimo. Almost hybrid yam lines indicated intermediate value between cv.Yamatoimo and cv.Nagaimo in water content. Starch content in hybrid yams incresed and showed the same level of cv.Yamatoimo (25-30%). Some hybrid yam showed high viscosty compared with cv.Nagaimo, especially YN3, YN9 and YN14 line. The contents of fructose, glucose and sucrose in hybrid yams were larger than both parent cultivars.

在Niigata大学的实验农场种植了杂种山药植物（D.Opposita cv.yamatoimo x cv.nagaimo，15行），并研究了其块茎形状和质量，性别和空中块茎形成。关于饱和度和伸长率的变化以杂种山药的块茎形状识别出来。观察到细长的形状块茎和团块形状块茎（YN3和YN9）。叶状形状与块状形状之间的相关性未被识别。认识到培养年中块茎的宽度/长度之比之间的关系。与cv.nagaimo相比，用块状块茎（YN3和YN9）的2个线的收获块茎的工作时间减少了。在所有混合山药植物中形成了空中块茎，但与CV.Nagaimo相比，其数量很小。在9条线中观察到了花朵的花，直到现在才观察到女性花。 CV.Yamatoimo和Cv.Nagaimo之间的块茎水含量有所不同。几乎混合的山药线表明在水含量中，CV.Yamatoimo和Cv.nagaimo之间的中间值。混合山药中的淀粉含量会增加，并显示出相同水平的CV.Yamatoimo（25-30％）。与CV.Nagaimo相比，一些混合动力山药显示出很高的粘镜，尤其是YN3，YN9和YN14系列。杂化山药中果糖，葡萄糖和蔗糖的含量大于两个父母。

项目成果

Kohmura H.& H.Araki: "Micropropagation of 'Yamatoimo'Chinese yam (Dioscorea opposita) from immature leaves" Plant Cell Tissue and Organ Culture. 40. 271-276 (1995)

高村 H.

H.Araki: "Micropropagation of 'Yamatoimo' chinese yam (Dioscorea opposita) from immature leaves" Plant Cell,Tissue and organ Culture. (in press). (1995)

H.Araki：“从未成熟的叶子中微繁殖‘Yamatoimo’山药（Dioscorea opposita）”植物细胞、组织和器官培养。

Araki H., Y.Asano, T.Harada and T.Yakuwa: "Induction and characteristics of hybrid yams." 24th International horticultural Congress. 160 (1994)

Araki H.、Y.Asano、T.Harada 和 T.Yakuwa：“杂交山药的诱导和特性。”

Kohmura H & H.Araki et al.: "Micropropagation of ‘Yamatoimo' Chinese yam(Dioscorea opposita) from immature leaves." Plant Cell, Tissue and Organ Culture. 40. 271-276 (1995)

Kohmura H & H.Araki 等人：“从未成熟的叶子中‘Yamatoimo’山药的微繁殖。”植物细胞、组织和器官培养（1995 年）。

Kohmura H., H.Araki and M.Imoto: "Micropropagation of 'Yamatoimo'Chinese yam(Dioscorea opposita)from immature leaves." Plant Cell Tissue and Organ Culture. 40. 271-276 (1995)

Kohmura H.、H.Araki 和 M.Imoto：“从未成熟的叶子中微繁殖‘Yamatoimo’山药（Dioscorea opposita）。”