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1976•New Zealand Journal of Crop and Horticultural ScienceOpen access

Germination studies with “hardened” vegetable seed

B. D. Wickham, M.A. Nichols

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Abstract

“Hardening” tomato, carrot, and radish seed by means of a 2% solution of potassium nitrate, or by means of three wetting and drying cycles had no effect on final germination percentage; but hardening reduced the time to 50% germination and reduced the spread of germination at 20°c both in vitro and in simulated field conditions. Similar in vitro results were obtained at 6–8°c, except that final germination percentage of untreated tomato and radish seed was significantly lower than treated seed.

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“Hardening” tomato, carrot, and radish seed by means of a 2% solution of potassium nitrate, or by means of three wetting and drying cycles had no effect on final germination percentage; but hardening reduced the time to 50% germination and reduced the spread of germination at 20°c both in vitro and in simulated field conditions. Similar in vitro results were obtained at 6–8°c, except that final germination percentage of untreated tomato and radish seed was significantly lower than treated seed.

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Available abstract

“Hardening” tomato, carrot, and radish seed by means of a 2% solution of potassium nitrate, or by means of three wetting and drying cycles had no effect on final germination percentage; but hardening reduced the time to 50% germination and reduced the spread of germination at 20°c both in vitro and in simulated field conditions. Similar in vitro results were obtained at 6–8°c, except that final germination percentage of untreated tomato and radish seed was significantly lower than treated seed.

Key concepts: Germination, Potassium nitrate, Agronomy, Horticulture, Biology, Wetting, Hardening (computing), Potassium

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