Crop Genetic Breeding

in this paper, mainly applications of mas and target traits qtl cloning based on crop qtl mapping in crop quantitative traits genetic and breeding such as yield, quantity, and drought resistance etc. were reviewed.

本文综述了近年来基于作物QTL的分子标记辅助选择及目标性状QTL克隆在作物的产量、品质、抗旱性等数量性状遗传育种中的主要应用，证实了分子育种的有效性；

The types of molecular markers and their utilization on crop genetic breeding

分子标记的种类及其在作物遗传育种中的应用

most of the important agronomic traits in crops are quantitatively inherited. improvement of these quantitative traits is one of the major objectives in crop genetic breeding program.

水稻许多重要农艺性状都是数量性状，水稻遗传改良的大部分工作就是改良这些数量性状。

main study progress of oppositifolious maize in plant form characteristics, crop genetic and breeding, plant physiology and biochemistry were summarized in this thesis. at the same time, the utilities and developmental prospects of oppositifolious maize were also expounded.

综述了对生玉米的植物学形态特征、遗传育种、植物生理及生物化学等方面的主要研究进展，并对对生玉米的利用价值和发展前景进行了阐述。

this review introduced the snp definition, the detection methods of snp in plants and the application of snp marker in crop genetic and breeding.

本文主要介绍SNP的定义、几种植物学中常用的检测SNP方法及SNP标记在作物遗传育种中的应用。

the research work of improving the micronutrient content of the main crops, which aims at solving the shortage of international micronutrients, is the hotspot of the crop genetic and breeding research in the domestic and overseas.

提高主要农作物品种收获物中微量养分含量以解决国际性微量营养缺乏的问题是目前国内外作物遗传育种研究的热点。