Journal of Tianjin Agricultural University ›› 2016, Vol. 23 ›› Issue (2): 25-28.

• Researches and Scientific Notes • Previous Articles     Next Articles

Research on Grain Filling Characteristics of Four Popcorn Combinations

YANG Hong-wei, WANG Guo-qin, WANG Peng-wenCorresponding Author   

  1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China
  • Received:2015-10-19 Online:2016-06-20 Published:2019-10-14

Abstract: Based on the measurement of grain dry matter during grain filling stage of four pop waxy corn combinations-WB1401, WB1404, WB1407 and WB1417, the grain filling patterns of the four popcorn combinations was investigated in this paper and in order to facilitate the field management, provide theoretical basis for the extension and production. The results of the grain dry matter determination and Logistic curve simulation showed that change of the grain filling rate of the four popcorn varieties displayed “slow-fast-slow” state. The grain filling rate of the four pop reached the maximum on the 19th after pollination, but the biggest grain filling rates of 1000-grain weight were different, and the order were 7.51,5.13, 6.65 and 5.56 g/d. The average daily increase of 1000-grain weight of grain filling in combination WB1401 and WB1417 were the maximum, and the effective filling time was longer, it may obtain higher yields and maximum grouting rate and dry matter accumulation are different in varieties.

Key words: popcorn, Logistic equation, grain filling characteristics

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