摘要
以７９个改良小麦品种（系）与黑麦进行杂交，研究普通小麦品种与黑麦杂交亲和性的差异及其亲和性在品种更新、更换过程中的演变趋势，结果表明：供试改良小麦品种与黑麦的杂交亲和性显著低于对照中国春；结实率大于５０％的品种３个，占供试品种的３．８％，结实率介于３０％－５０％之间的品种４个，占５．１％，结实率介于１０％－３０％之间的品种８个（１０．１％），结实率小于５％的品种５０个，占６３．３％，另外，结实率介于５％－１０％之间的品种１４个，占１７．７％；普通小麦与黑麦的杂交亲和性随着品种的更新、更换呈下降趋势，平均结实率大于５０％、介于３０％－５０％的品种数均呈下降趋势，而结实率＜５％的品种数呈上升趋势；系谱分析表明，供试改良品种的亲和性大都来源自蚰子麦、蚂蚱麦、辉县红３个地方普通小麦品种；莱州９５３、８６４１０１２、烟农１５等是亲和性和综合性状都较好的改良小麦品种（系）。
Seventy nine improved wheat cultivars (lines) including some related parents were corssed with rye to detect the difference of crossability among wheat genotypes and the developing tendency of crossability during the cultivar renewing period in Shandong Province,the results expressed that crossability of improved cultivars with rye were significantly lower than that of the check (Chinese Spring),and there were 3 cultivars with a seedset of more than 50%,4 cultivars with the seed set of 30%-50%,8 ones with that of 10%-30%,50 ones with the seed set of less than 5%,and the other 14 cultivars with the seed set of 5%-10%;The mean crossability between wheat and rye decreased with the renewing of cultivars in Shandong,and the number of cultivars with the seed set of more than 50% and 30%-50% also decreased,but that with the seed set of less than 5% increased gradually during the renewing period;Pedigree analysis revealed that the crossable gene of the tested cultivars might come from 3 landraces (Youzimai,Mazhamai and Huixianhong),Laizhou 953,8641012,Yannong 15 et al were improved wheat cultivars with both excellent agronomic traits and high crossability with rye.
出处
《西北植物学报》
CAS
CSCD
1999年第1期14-23,共10页
Acta Botanica Boreali-Occidentalia Sinica
关键词
小麦
黑麦
品种演化
亲和性
wheat,rye,artificial evolution,crossability
