中国农学通报2025，Vol.41Issue(24)：45-50,6.
不同药剂处理柱头对万寿菊×孔雀草远缘杂交结实率的影响
Effect of Different Chemical Treatments on Seed Setting Rate of Distant Hybridization Between Tagetes erecta and Tagetes patula
摘要
Abstract
In order to improve the yield of hybrid seeds of Tagetes erecta and Tagetes patula per unit area,different concentrations of glucose,sodium chloride,boric acid,and gibberellin were sprayed on the stigma of male sterile marigold maternal plants before pollination.The seed setting rate of individual inflorescences under different treatments was statistically analyzed,and the correlation between the seed setting rate and environmental factors such as temperature and humidity were analyzed.The results showed that the application of T10(37.5 mg/L GA3)resulted in the highest seed setting rate of single inflorescence,reaching 64.95%,slightly higher than that of control(59.97%);the treatment with the lowest seed setting rate was T5(3.0%NaCl),which was 30.72%.Excessive NaCl concentration could damage the stigma of marigold inflorescence.There was significant difference between T5 and other treatments.Different pollination dates resulted in different seed setting rates,which exhibited a trend of'low-high-low'depending on the pollination time.The correlation between seed setting rate and air temperature and humidity was analyzed,and it was found that the seed setting rate had medium-negative correlation with daily maximum and average temperatures,but did not reach a significant level.关键词
万寿菊/孔雀草/远缘杂交/雄性不育系/结实率/赤霉素Key words
Tagetes erecta/Tagetes patula/distant hybridization/male sterile line/seed setting rate/gibberellin分类
农业科技引用本文复制引用
张华丽,宋利娜,孙丽萍,崔荣峰,李子敬,赵世伟,何燕红..不同药剂处理柱头对万寿菊×孔雀草远缘杂交结实率的影响[J].中国农学通报,2025,41(24):45-50,6.基金项目
北京市科委项目"万寿菊产业化关键技术研发与集成示范"(Z161100001116091) （Z161100001116091）
北京市科委项目"园艺体验技术产品研发与应用示范"(Z201100008020004). （Z201100008020004）
