›› 2020, Vol. 32 ›› Issue (4): 661-670.DOI: 10.3969/j.issn.1004-1524.2020.04.13

• Horticultural Science • Previous Articles     Next Articles

Differences in matter production characteristics and yield formation of tissue culture gingers in different generations

REN Yun, LI Qiang, LI Zhexin, LIU Yiqing, TANG Jianmin*   

  1. Chongqing Key Laboratory of Economic Plant Biotechnology, Collaborative Innovation Center of Special Plant Industry in Chongqing, Institute of Special Plants, Chongqing University of Arts and Sciences, Chongqing 402160, China
  • Received:2010-10-25 Online:2020-04-25 Published:2020-04-26

Abstract: To study the differences in matter production characteristics and yield formation of tissue cultured gingers in different generations, and to determine the best promotion generation of tissue cultured ginger in production, tissue cultured original-original seeds (T1), original seeds (T2) and production seeds (T3) were used as experimental materials to conduct a two-year field experiment in 2017-2018. The results showed that the growth characteristics of T3 and T2 were significantly better than that of T1, which showed the plant height and stem diameter of T3 and T2 grew rapidly, and ensured the rapid growth of shoot in the early growth stage. After entering the rhizome expansion period, the growth of plant height and stem diameter of ginger slowed down, and tillers occurred rapidly. T3 and T2 could effectively control the occurrence of tillering, reduce the consumption of photosynthetic products by excessive tillering, and ensure the supply of photosynthetic products of rhizomes, thereby increased the rate of dry matter accumulation, prolonged the rapid growth period, and significantly increased their dry matter accumulation, laid a material foundation for high yield. After rhizome expansion period, the lower proportion in stem, leaf and root of T3 and T2, which promoted the transfer of photosynthetic products to rhizomes and further promoted the expansion of rhizomes, thus achieved high yield. Therefore, compared with the original-original seeds and original seeds, the production seeds of ginger had obvious yield advantages, which could effectively improve the economic benefits of ginger production. Comprehensive considering the yield differences and economic benefits, and seeds degeneration law of tissue cultured ginger, the tissue cultured ginger production seeds (T3) could be used as the best promotion generation for production, which could realize its yield potential, improve economic benefits and effectively control the occurrence of diseases.

Key words: ginger, generation, tissue culture, matter accumulation and distribution, yield

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