ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Influence of soaking periods and temperatures on germination and respiration of pea seeds.

Zaghdani, A.; Fustos, Z.; Horvath, G.; Kissimon, J.;

International Journal of Horticultural Science Year: 2000 Vol: 6 Issue: 1 Pages: 69-71 Ref: 11 ref.

2000

บทคัดย่อ

Samples of 50 wrinkled-seeded peas (Pisum sativum cv. Farida) were soaked for 0.5, 1, 4, 8, 24, 48 and 72 hours at temperatures of 5, 10, 15 and 20 deg C in distilled water before germination. Water absorption, percent of germination, vigorous seedlings and dry weight of normal seedlings were assessed after 8 days. Respiration of short and long seedlings were checked by IRGA, LI-COR 6200 photosynthesis system. Most plants had respiration and some of them already had photosynthesis after 8 days. Differences in the amount of water absorbed were evident after one hour. Water amount was increased by increasing soaking temperatures and times. The maximum was achieved after 24 hours. Normal germination percent was not improved at any soaking time and temperature combinations but it was significantly decreased at 10 deg C with soaking time combinations and at 20 deg C for 72 hours. The seedling vigour values were not very different at the higher soaking temperatures, but the treatments at 20 deg C temp

erature with 8 and 24 hour soaking periods were optimal for seedling vigour. At the low soaking temperature the increase of the soaking period influenced the seedling vigour.