Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (16): 32-37.doi: 10.11924/j.issn.1000-6850.casb2021-0589

Special Issue: 生物技术 园艺

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Effects of Sowing Date on Yield and Quality of Pepper

LIU Yupeng1,2(), ZHANG Hao3, CHEN Fang1,2, YU Fei1,2()   

  1. 1Mountain Environment and Climate Research Institute of Guizhou Province, Guiyang 550002
    2Guizhou Provincial Key Laboratory of Climate and Resources, Guiyang 550002
    3Meteorological Bureau of Qingzhen, Qingzhen, Guizhou 550014
  • Received:2021-06-07 Revised:2021-12-13 Online:2022-06-05 Published:2022-06-09
  • Contact: YU Fei E-mail:895965658@qq.com;66435101@qq.com

Abstract:

In order to clarify the effects of sowing date on yield and quality of pepper, field experiments were conducted in Guiyang of Guizhou Province, using ‘Zunyi pod pepper’, ‘Cluster pepper’ and ‘Layan 1’ as experimental materials. The results showed that, the yield of all the three pepper varieties reached the highest when the sowing date was March 15. The average yield from high to low was ‘Layan 1’> ‘Zunyi pod pepper’> ‘Cluster pepper’. The quality of pepper was comprehensively evaluated by the principal component analysis, the comprehensive quality of ‘Zunyi pod pepper’ was the best when the sowing date was April 15, and the comprehensive quality of ‘Cluster pepper’ and ‘Layan 1’ was the best when the sowing date was April 5. The comprehensive quality of pepper from high to low was ‘Zunyi pod pepper’> ‘Cluster pepper’> ‘Layan 1’. In general, the yield of pepper could reach the highest in Guiyang and areas with similar climate condition when the sowing date is March 15 of the normal year, and the comprehensive quality is the best when the sowing date is delayed by 20-30 days.

Key words: pepper, sowing date, quality, yield, principal component analysis

CLC Number: