Effects of harvesting intensities on some vegetative and generative characteristics of Dactylis glomerata L. in Saral rangelands, Kurdistan Province

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SAEDI K.; GHASRIANI F.; JAFARI A.A.; FAYAZ M.; FAYAZ M.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2017 | Volume:24 | Issue:3 (68) Page(s): 676-684

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Title

Effects of harvesting intensities on some vegetative and generative characteristics of Dactylis glomerata L. in Saral rangelands, Kurdistan Province

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Keywords

Soluble carbohydratesQ2

nitrogen compoundsQ1

grazingQ2

resistanceQ1

yieldQ2

Abstract

To evaluate the effects of harvesting on Dactylis glomerata, a half-hectare rangeland was excluded from grazing in Zaradwan paddock before vegetative growing season in 2005. In this research exclosure, 40 individuals of this species were completely randomly selected and each 10 individuals were assigned to harvesting treatments at 0, 20-40, 40-60, and 60-80%. Harvesting treatments were applied three times with a month interval during 2005-2008 and the harvested yield was dried and weighted. Thus, the yield of all plants (except control group) was harvested totally at the end of growing season. In the fifth year of study, without applying harvesting treatments, and at the end of growing season, the features including mortality, height, yield and number of reproductive stems were measured and then all roots were taken out of the soil to measure the reserves of Soluble carbohydrates and nitrogen compounds. The crude protein was also measured as an indicator of the forage quality. An unbalanced completely randomized design was used to analyze the data. After five years, only one mortality was observed among the 40 study species. The results indicated that D. glomerata was intensively affected by different harvesting intensities, so that this treatment caused decrease of height, aboveground and belowground dry matter. Harvesting treatments had no significant effects on Soluble carbohydrates and nitrogen compounds of the study species. In general, the forage quality of the treatments was not affected by the harvesting intensities.

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APA: Copy

SAEDI, K., GHASRIANI, F., JAFARI, A.A., & FAYAZ, M.. (2017). Effects of harvesting intensities on some vegetative and generative characteristics of Dactylis glomerata L. in Saral rangelands, Kurdistan Province. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 24(3 (68) ), 676-684. SID. https://sid.ir/paper/107247/en

Vancouver: Copy

SAEDI K., GHASRIANI F., JAFARI A.A., FAYAZ M.. Effects of harvesting intensities on some vegetative and generative characteristics of Dactylis glomerata L. in Saral rangelands, Kurdistan Province. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2017;24(3 (68) ):676-684. Available from: https://sid.ir/paper/107247/en

IEEE: Copy

K. SAEDI, F. GHASRIANI, A.A. JAFARI, and M. FAYAZ, “Effects of harvesting intensities on some vegetative and generative characteristics of Dactylis glomerata L. in Saral rangelands, Kurdistan Province,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 24, no. 3 (68) , pp. 676–684, 2017, [Online]. Available: https://sid.ir/paper/107247/en

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