Factors in Fluencing seedling emergence F rom immature embryos o F winter wheat and the transplantation in summer F ield
Year: 2014
Type: article
Abstract: In order to complete 4-5 generations development of winter wheat per year via taking timely use of summer field and greenhouse,the study was performed to investigate the influencing factors on the seedlings mergence from immature embryos ofwinter wheat and their transplanting survival rate in summer field. The immature embryos of Jimai 20, Yanyou 361, Tainong18, Zhongyou 9507 and F1 (Jimai20×Yanyou361) at 11-13, 14-16 and 17-19d of embryonic age were cultured in three differentmedia with or without hormones. The seedling emergence rates were compared and the seedlings were directly transplanted tosummer field after vernalization for 15, 20 and 25d, respectively. The results showed that the appropriate time for vernalizationof seedlings was 20-25d; Among the nine inoculation tests, higher germination rate (95.80% on average) and transplanting survivalrate of seedling (86.95% on average) were obtained from the 14-16d immature embryos cultured in the media without hormones,and the seedling emergence rate was the highest (82.95% on average). When seedlings were transplanted to the groovein summer field, we found the transplanting survival rate was greatly improved by covering the roots of seedlings with a smallamount of detritus substrates and burying in soil. In summary, we have identified and optimized critical factors that influencethe seedling emergence from immature embryos of winter wheat and their transplanting survival rate in summer field.
Authors: Feng Deshun, Gao Jurong, Xingfeng Li, Honggang Wang, Bao Yinguang
Institution: Shandong Agricultural University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: green
Award: G135767336
OpenAlex ID: W2182224394