Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Two new morphotypes of Pinus eldarica: Discrimination by macromorphological and anatomical traits

100%

Shayanmehr F., Jalali S. G., Ghanati F., Kartoolinejad D., Apple M. E.

Dendrobiology

2009

tom 61

27-36

Pinus eldarica has been introduced to Iran from more than 800 years ago. Some individuals of this pine have altered both in shape and growth rate in northeastern of Iran, and generated two distinct morphotypes which are called Conical-shaped and Ball-shaped pines. This study was conducted to discriminate these morphotypes using macromorphological and anatomical characteristics. Results of macromorphological analysis showed significant differences both with univariate and multivariate analysis and consequently two new morphotypes were clearly separated from Mondell pine individuals. Furthermore, anatomical differences observed in Conical-shaped pine in comparison with two other pines, from some valuable taxonomical point of view traits such as cross-section form of needle, number of stomata per area, number and position of resin ducts etc. Furthermore, the existent difference in traits like cuticle thickness, stomata density, needle perimeter and length, state increasing the adaptation potential to aridity in Conical-shaped pine in comparison with two others. The differences of two new morphotypes demonstrate that they are new variants of Mondell pine and it is need to be used molecular markers and phylogenic studies for specifying the cause of these morphological and anatomical differences.

The effects of Viscum album L. on foliar weight and nutrients content of host trees in Caspian forests [Iran]

86%

Hosseini S. M., Kartoolinejad D., Mirnia S. K., Tabibzadeh Z., Akbarinia M., Shayanmehr F.

Polish Journal of Ecology

2007

tom 55

nr 3

Caspian forests (in the region it is called – Hyrcanian Forests) with an area of about 1.9 million ha are located in north of Iran, in southern coast of Caspian Sea. It is exclusive site for some valuable species like Populus caspica Bornm., Gleditsia caspica Desf., Parrotia persica Meyer. and Pterocaria fraxinifolia (Lam.) Spach., and the forests are dominated by Fagus orientalis Lipsky, Quercus castanifolia C. A. M., and Alnus glutinosa Gaertn. The mistletoe (Viscum album L.) effects on the area and weight of leaves of the two host tree species ( hornbeam Carpinus betulus L. and ironwood Parrotia persica Meyer.) were studied on a number of severely infected individuals and control trees in selected parts of Hyrcanian Forests. Almost 100 leaves from infested and non-infested branches of two host species were sampled in order to compare with control trees (non-infested trees growing near each host). Results showed, that area and weight of leaves taken from infested branches of ironwood were significantly lower (at 95% confidence level) than leaf area and weight in non-infested branches and control trees. The amount of K, Mn and Zn was higher in infested branches of both species compared to control trees. However, the amount of nitrogen in infected branches of ironwood was lower. The results suggest that V. album may have detrimental effect on leaf structure, physiology and chemical composition of strongly infested host trees.

Ograniczanie wyników

1 Dendrobiology

1 Polish Journal of Ecology

2 Kartoolinejad D.

2 Shayanmehr F.

1 Akbarinia M.

1 Apple M. E.

1 Ghanati F.

1 Hosseini S. M.

1 Jalali S. G.

1 Mirnia S. K.

1 Tabibzadeh Z.

1 2009

1 2007

Wyniki wyszukiwania

Two new morphotypes of Pinus eldarica: Discrimination by macromorphological and anatomical traits

The effects of Viscum album L. on foliar weight and nutrients content of host trees in Caspian forests [Iran]