权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

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

基本信息

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

项目摘要

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.

杂交山药(d.a nitalcv .；大和友x cv。在新泻大学实验农场种植永井莫，15系)，对其块茎形状、品质、性别和空中块茎形成进行了研究。在杂交山药块茎形状上，丰满度和伸长率发生了变化。观察到细长形块茎和块状块茎（YN3和YN9）。叶片形状和块茎形状之间没有相关性。块茎宽长比在不同栽培年限之间存在一定的关系。块状块茎2个品系（YN3和YN9）的收获工时较长。所有杂交山药植株均能形成地生块茎，但数量较少。9个系观察到假花，至今未见雌花。品种间块茎含水量差异较大。大和莫和长井莫。几乎杂交山药株系在cv。大和友和cv。Nagaimo中水分含量。杂交山药的淀粉含量增加，且呈相同的cv水平。Yamatoimo(25 - 30%)。部分杂交山药表现出较高的黏度。Nagaimo，特别是YN3， YN9和YN14线。杂交山药的果糖、葡萄糖和蔗糖含量均高于亲本品种。