Mustafa ÇELİK

The Effects of Stratification Periods and GA3 (Gibberellic acid) Applicatıons on Germination of Seeds of Some Grape Cultivars

Anahtar Kelimeler:

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The Effects of Stratification Periods and GA3 (Gibberellic acid) Applicatıons on Germination of Seeds of Some Grape Cultivars

It is neccessery to know the effects of applications increasing the percentage of seed germination for assisting the breeding researches. The aim of this research is to determine the effects of different doses of GA3(Gibberellic acid) and different cold stratification times on germination abilities of the seeds of Gelin, Razakı and Alphonse Lavallee cv. (Vitis vinifera L.). 75 and 90 days stratification periods at +5ºC together with 0, 250 and 750 ppm GA3 doses have been applied in completely randomized design as three replicatons. Seeds were either dipped in GA3 solutions or pure water as control for 24 hours. In Razakı cv., after 75 days stratification periods GA3 doses applications did not affect on the percentages of seed germination while afer 90 days stratification periods, 750 ppm GA3 dose increased the percentage of seed germination. In Gelin cv. after both cold stratification periods, 750 ppm GA3 dose increased the percentage of seed germination. However, in Alphonse Lavallee cv. after both cold stratification period, GA3 doses did not affect the percentage of seed germination

Keywords:

Seed germination, table grapes, Gibberellic acid, vitis cold stratification,

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