关键词: 谷子, 生态区, 农艺性状, 赤峰, 引种

Abstract: In order to enrich the foxtail millet germplasm resources in Chifeng area,495 foxtail millet varieties(lines) were introduced from 9 Provinces(Autonomous Region),their agronomic traits were ana lyzed,and comprehensive evaluation was done.The results showed that 431 foxtail millet varieties(lines)of the samples could mature normally,and the traits of foxtail millet varieties(lines) from 9 Provinces(Autonomous Region) were quite different. The foxtail millet varieties(lines) from Inner Mongolia Autonomous Region had more grain number per main panicle,higher grain weight per main panicle and thousandgrains weight.The foxtail millet varieties(lines) from Hebei Province had longer growth period,more grain number per main panicle,shorter main stems and lower thousand grains weight.The foxtail millet varieties(lines) from Shanxi Province had longer growth period,lower milled millet rate and thousand grains weight.The foxtail millet varieties(lines) from Liaoning Province had longer main stems,higher thousand grains weight and yield. The foxtail millet varieties(lines) from Jilin Province had higher thousand grains weight.The foxtail millet varieties(lines) from Heilongjiang Province had higher milled millet percentage and thousand grains weight,and shorter growth period,main stem and panicle length.The foxtail millet varieties(lines) from Shandong Province had longer growth period and lower thousand grains weight.The foxtail millet varieties(lines) from Henan Province had longer growth period,more tiller number,less grain numbers per main panicle,and lower grain weight per main panicle and yield.The foxtail millet varieties(lines) from Gansu Province had stout main stem,longer main panicle,more grain number per main panicle,and higher grain weight per main panicle and thousand grains weight.The results of yield comparison showed that there were different reasons for yield increase of foxtail millet varieties(lines) from different Provinces(Autonomous Region).The yield increase of foxtail millet varieties( lines)from Inner Mongolia Autonomous Region was based on the significant increase of grain number per main panicle,grain weight per main panicle and thousand grains weight,while the yield increase of foxtail millet varieties(lines) from Shanxi Province,Jilin Province,Heilongjiang Province and Henan Province was based on the significant increase of grain number per main panicle and grain weight per main panicle.For the foxtail millet varieties(lines) from Inner Mongolia Autonomous Region,Hebei Province,Shanxi Province and Liaoning Province,the growth period was significantly negatively correlated with yield,the main panicle weight and grain weight per main panicle were significantly positively correlated with yield,and the grain weight per main panicle determined the main genetic variation of yield.For the foxtail millet varieties(lines) from Heilongjiang Province,the growth period,main panicle weight and grain weight per main panicle were significantly positively correlated with yield,and the main panicle weight determined the main genetic variation of yield.For the foxtail millet varieties(lines) from Jilin Province,the main panicle weight and grain weight per main panicle were significantly positively correlated with yield,and the main panicle weight determined the main genetic variation of yield. For the foxtail millet varieties(lines) from Shandong Province,Henan Province and Gansu Province,the main panicle weight and grain weight per main panicle were significantly positively correlated with yield(except main panicle weight for Gansu Province),and the grain weight per main panicle determined the main genetic variation of yield. By combining the principal component analysis of 16 traits with Anova analysis of yield,some excellent varieties were selected,such as Jinmiao K1,Jigu 168,Yugu 28,Longgu 39,Jinfen 107,Zhushaguzi and Changboyan.Among them,8 traits of Longgu 39 were excellent,6 traits of Jinmiao K1 were excellent,5 traits of Jigu 168 and Changboyan were excellent,respectively.

Key words: Foxtail millet, Ecological region, Agronomic traits, Chifeng, Introduction