076与陇薯7号杂种后代与其亲本农艺性状的比较大学本科毕业论文VIP专享

本科毕业论文07-6 与陇薯 7 号杂种后代与其亲本农艺性状的比较摘 要本讨论通过对 07-6 与陇薯 7 号的杂交后代 G16 及其亲本的农艺性状进行观测比较。讨论结果表明：①杂种后代的生长势比亲本旺盛，生育期与父本相接近；②杂种后代的花色、叶形等地上部的生物学性状与其父本类似；③杂种后代块茎的生物学性状明显优于双亲；④杂种后代的淀粉含量高于亲本，而还原糖含量低于亲本，表现出明显的杂种优势。关 键 词：马铃薯、杂种后代、农艺性状、杂种优势Contrast of Agronomic Characters on 07-6 and Longshu No.7 and their Hybrid ProgeniesAbstract This study observed and compared through agronomic characters of hybrid offspring G16 of o7-6 and Longshu No.7 and its parents. The results of the study showed that: ① The growth potential of the hybrid progeny was exuberant than its parents, and the growth period closed to the male parent; ② The flower color and leaf shape of hybrid progeny was similar with its male parent, and other above-ground biological characters; ③ the tuber biological characters of the hybrid progeny was obviously superior to its parents; ④ The starch content of G16 is higher than its parents, and was lower content of reducing sugar than parents, exhibited obvious heterosis than its parents.Key words: Solanum tuberosum; Hybrid progeny; Agronomic characters; Heterosis目 录1 引言....................................................11.1 马铃薯概况.........................................11.2 国内外马铃薯育种讨论进展...........................11.3 遗传标记的种类.....................................21.3.1 形态标记......................................31.3.2 细胞学标记....................................31.3.3 生化标记......................................41.3.4 分子标记......................................41.4 杂种优势的讨论与利用...............................41.5 本讨论的目的意义...................................62 材料与方法..........