نوع مقاله : علمی- پژوهشی
نویسندگان
مربی پژوهش، مرکز تحقیقات کشاورزی و منابع طبیعی استان مازندران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
This paper presents the result of 15-years elimination trial in the form of completely blocks design with 3 replications and nine treatments (9 species and provenances of exotic needle leaves) after establishment in Patum district of Kheyroud forest at Nowshahr region in Mazandran province (Caspian forest, North of Iran). The planted species were Sequoia sempervirens, Cedrus atlantica, Cryptomeria japonica, Pinus elliottii, P. taeda, P. ponderosa, P. nigra var. calabrica, P. n. var. pallasiana and P. n. var. austriaca. The area is located at 450 m.a.s.l. and has a humid climate with less than one month dry period. Results showed that there are significant differences in survival, diameter at breast height and total height among the planted species. Sequoia sempervirens was the most promising species. However, Cryptomeria japonica and Pinus nigra var. calabrica have also showed acceptable results which can be introduced for the region.
کلیدواژهها [English]