نوع مقاله : علمی-ترویجی
نویسندگان
1 عضو هیئت علمی
2 مسئول ایستگاه تحقیقات جنگل و مرتع پاسند
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This research aims to reduce maple (Acer veluotinom Boiss.) seedlings damage and seedling growth due to spring late coldness in an mountain .nursery. The research was carried out during 2007 and 2008, in Darzikola nursery (Farim Wood Co(. of Mazandaran province of I.R. Iran. Seeds were treated by six levels of sowing dates (First week of December (1), second week of January (2) first week of February (3), fourth week of February (4), fourth week of March (5), second week of April (6), under random block design with three replications. The trial was repeated for two years. Results showed that effects of sowing date on maple seeds germination rate, seedlings mortality rate and seedlings height growth (p
کلیدواژهها [English]