Effects of different storage conditions on the germination vigor of Haloxylon ammodendron（C.A.Mey.）Bunge seeds

doi:10.14088/j.cnki.issn0439-8114.2020.08.027

Abstract

Abstract: The mature Haloxylon ammodendron（C.A.Mey.）Bunge seeds in Turpan were used as experimental materials, to study the effects of storage time, temperature and seed moisture content on the germination vigor of H.ammodendron（C.A.Mey.）Bunge seeds.The results showed that, under the storage mode of room temperature and refrigeratort for nine months, with the extension of storage time, the seed germination percentage showed a decrease trend, and the rate of decline were 46.50 and 35.50 percentage point. The reduction of germination percentage of storage seeds in refrigerator was lower than room temperature in various periods. Under different storage temperatures for three months, the characteristics of germination percentage, germination potential, germination index and fresh weight of embryo were -10 ℃>-18 ℃>-4 ℃>4 ℃>room temperature. With the storage temperature was decreased, the trend was increased first, then decreased significantly. Under different seed moisture content stored three months, the characteristics of germination percentages, germination index, root length and vigor index of seeds were as follows, with the seed moisture content was decreased, the trend was increased first, then decreased, and the reduction was lowest under the storage conditions of seed moisture content of 5.50%. There were extremely significant negative correlation between storage temperature and vigor index, between storage seed moisture content and germination index,vigor index, respectively. The order of correlation coefficient between seed germination percentages, vigor index and different storage conditions was moisture content>storage temperature>storage time, however,the order of correlation coefficient between seed germination potential,vigor index and different storage conditions was storage temperature> moisture content>storage time.

Key words: storage conditions, Haloxylon ammodendron（C.A.Mey.）Bunge seeds, germination, vigor

CLC Number:

S793

WANG Ze, REN Cai, LIANG Yan, YAN An, MA Hao, LUO Yan-li, SU Ling. Effects of different storage conditions on the germination vigor of Haloxylon ammodendron（C.A.Mey.）Bunge seeds[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(8): 121-125.

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