部分湖北海棠种质的鉴定及亲缘关系分析     

张靖国  胡红菊  徐育海  罗正荣 《华中农业大学学报》2009,28(6)

用17对SSR引物对来自鄂西地区的兴山、房县、竹溪、宣恩、鹤峰、建始以及山东临沂等地33份湖北海棠种质和2个苹果属近缘种进行了种质鉴定和亲缘关系分析.在33份湖北海棠中共扩增出121个等位基因,平均每个位点7.12个,平均多态性比率为98.3%;除GD15、GD162和Z71981外的14对引物中任意一对均可区分所有供试材料,在17个SSR位点上共检出供试33份湖北海棠试材分属6个基因型,表明湖北海棠种下存在较高的遗传多样性.此外,倍性检测结果表明所有供试材料均为三倍体基因型.  相似文献   

香梨杂种后代果实若干性状的遗传学调查   总被引：9，自引：1，他引：9  

何天明  李疆 《新疆农业大学学报》1999,22(2):112-118

对香梨正反交获得的１１个组合、６４株杂种实生树的果实主要经济性状进行调查,结果表明：香梨的小果型遗传能力较强,群体遗传水平为５３．９％,果心趋中遗传;果实可溶性固形物含量超亲遗传;杂种普遍倾向早熟;果面红晕为质量性状,杂种红晕株率达３５．５％,用香梨培育红皮梨切实可行;香梨与杜梨的杂交表明利用野生梨开展种间杂交育种很有希望。  相似文献   

Effect of Indole Butyric Acid on the Transportation of Stored Calcium in Malus hupehensis Rhed. Seedling     

LI Jia YANG Hong-qiang YAN Tian-li SHU Huai-rui 《中国农业科学(英文版)》2006,5(11):834-838

Calcium （Ca） plays an important role in the metabolism of higher plants. Recently, research on Ca^2＋ in plants has been focused especially at the cellular and molecular levels. Uptake, transport, and distribution are also very important for Ca to accomplish its function at the whole-plant level. In this experiment, one-year-old apple seedlings （M. hupehensis Rehd.） were investigated to determine the distribution of stored Ca, the different forms of Ca, and Ca^2＋-ATPase activity after treatment with indole butyric acid （IBA）. The results showed that the total Ca measured in mature leaves and Ca^2＋- ATPase activity in tender leaves were higher compared with those in the control （CK）. Calcium nitrate and calcium chloride （ALe-Ca） and calcium phosphate and calcium carbonate （HAC-Ca） decreased in both mature leaves and shoots, whereas water-soluble calcium （H2O-Ca）, calcium pectate （NaCl-Ca）, and calcium oxalate （HCl-Ca） increased. The percentage of active calcium, calcium pectate, and water-soluble calcium increased, whereas the percentage of calcium phosphate and calcium carbonate decreased. When treated with IBA, calcium fractions and percentage of the different forms of Ca was enhanced in 40 part per million （ppm） IBA compared with 20 ppm IBA and water. The results indicated that IBA increased the percentage of both active calcium （NaCl-Ca and H2O-Ca） in tender shoots and boosted the transportation of stored Ca in plants. IBA promoted Ca^2＋-ATPase activity and Ca^2＋ uptake in tender shoots of M. hupehensis. It can improve the total Ca contents and the relative percentage of Ca.  相似文献   

甜茶应用开发研究   总被引：2，自引：0，他引：2  

唐晓峰  陈宗道 《西南大学学报(自然科学版)》1998,20(2):175-177

应用茶叶加工技术可将甜茶（ＬｉｔｈｏｃａｒｐｕｓｐｏｌｙｓｔａｃｈｙｕｓＲｅｈｄ．）嫩叶加工成不发酵、半发酵和发酵的“茶叶”。其中，以炒青甜茶和乌龙甜茶为佳，成品无咖啡碱、毒性和苦味。用简单的工艺可制备二氢查尔酮粗提物，直接用于食品工业和制药业。甜茶的抗过敏作用也被体外的透明质酸酶抑制试验所证实。  相似文献