ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Influence of some factors on apple seed germination removed from fruit held in cold storage

Emilian Pitera and Slawomir Odziemkowski

Proceedings of 26th International Horticultural Congress. Volume of Abstract . Toronto, Canada, 11-17 August, 2002. Abstract S12-P-10. pp. 326.

2002

บทคัดย่อ

The influence of temperature , cultivar and pollinator on the seed germination, removed from fruit held in cold storage, were studied. This seeds are used in diseases resistance apple breeding programme. Apple seeds from open pollinated and controlled crosses were removed from fruits stored until April 9 in common cold storage at 2 ^oC. The seeds were then sown directly to the seedbed and into the multipots. The multipots were filled with sphagnum peat with added mineral nutrition and placed in a greenhouse and an unheated plastic tunnel. All combinatioins were used only for seeds of ‘Gloster’ open pollinated. The germination of seeds was judged on the emergence of the ground. In this experiment maximum (78%) germination percentage was reached in the unheated plastic tunnel and the lowest (52%) in the greenhouse. The remaining seeds were germinated in the plastic tunnel. Germination percentage of that seeds was generaly high and was influenced by the cultivar and pollinator. The germination percentage of seeds of ‘Elise’ and ‘Gloster’ was significantly higher than that of the ‘Golden Delicious’. It was the highest when clone U 211 was used as a pollinator and for the crosses ‘Elise’ x clone U 211-95%, ‘Gloster’ x clone U 211-93% and 81% for ‘Golden Delicious’ x clone U 211 in comparison to 70% for both ‘Golden Delicious’ x clone U 641 and ‘Gloster’ open pollinated. The rate germination of the seeds of ‘Gloster’ and ‘Elise’ was significantly lower than that of ‘Golden Delicious’ and was negatively correlated with the percentage germination. The growth of seedlings obtained from seeds removed fromm stored fruits in cold storage was equally good.