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여름무우 品種改良에 있어서 單株系統法의 利用硏究 Ⅱ. 二面交雜에 依한 雜種强勢, 組合能力 및 形質相關에 關하여
Soo Seong Lee(李洙聖),Wha Mo Yoon(尹禾模),Young An Shin(申榮安) 한국육종학회 1985 한국육종학회지 Vol.17 No.2
Five inbred lines developed by the single seed descent method and their 10 F₁ hybrids of radish by the half diallel cross were cultivated in summer season. The results of estimated heterosis, combining ability and correlation between 8 characters are summerised as follows : 1. Heterosis was significant at the 1% level for 6 characters, especially high for root weight(146%), leaf weight(52.6%) and index of virus susceptibility(-51.2%). 2. GCA effect was significant for all characters except root diameter and susceptibility of soft rot. SCA effect was significant for root length and leaf length. 3. Root weight was correlated with leaf length, root length and diameter. Susceptibility of virus and soft rot was not correlated with any other character.
배추 葯培養에 依한 植物體誘起 및 獲得植物의 種字生産 能力
Soo Seong Lee(李洙聖),Yeo Joong Yoon(尹汝重),Hyun Ho Shin(申鉉昊),Jong Gyu Woo(禹鍾圭) 한국육종학회 1988 한국육종학회지 Vol.20 No.1
Anther culture of heading Chinese cabbage, Brassica campestris ssp. pekinensis, was carried out with several cultivars for 3 years. Plants derived from microspores were investigated for pollen production, self-and cross-incompatibility and seed bearing ability. Genotypic specificity of the donor plant was obvious in microspore embryogenesis. Sixty five out of 103 anther-derived plants produced pollen and self-seeds. The low ability of self-seed setting in bud pollination at the first generation of anther-derived plants was greatly improved according to advancement of generation. The number of seeds per open flower pollination in cross-compatible combinations was greatly more than that per bud self. All of the lines derived from the anther of F₁ hybrids were so uniform in morphology that they could be used directly as the parental inbred of an F₁ hybrid.