The effect of ryegrass (Lolium italicum L.) stand densities on its competitive interaction with cleavers (Galium aparine L.)

Sava VRBNICANIN; Mirjana KRESOVIC; Dragana BOZIC; Aleksandar SIMIC; Radojka MALETIC; Ahmet ULUDAĞ

Makale detayları

The effect of ryegrass (Lolium italicum L.) stand densities on its competitive interaction with cleavers (Galium aparine L.)

Yazarlar:

Sava VRBNICANIN | Mirjana KRESOVIC | Dragana BOZIC | Aleksandar SIMIC | Radojka MALETIC | Ahmet ULUDAĞ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2012 Vol.36 Issue 1, pp.121-131

Belge Tipi:

Makale

Yayın Tarihi:

12/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000808009

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Anahtar kelimeler:

Özet:

 

Italian ryegrass (Lolium italicum L. cv. Tetraflorum) seed production is an important industrial activity in Serbia. Cleavers (Galium aparine L.) interferes in Italian ryegrass seed production as well as in many other crops. The effect of stand density of Italian ryegrass on its competitive interaction with cleavers was investigated in western Serbia in the 2005-2006 and 2006-2007 cropping seasons. The established density treatments of Italian ryegrass were 5 kg ha-1 seeding rate with 60 cm row spacing (SD1), 5 kg ha-1 with 20 cm (SD2), 20 kg ha-1 with 60 cm (SD3), and 20 kg ha-1 with 20 cm (SD4). The interaction between Italian ryegrass and cleavers was evaluated by SPAD reading, relative nitrogen content (RNC) in the leaf, total nitrogen content (TNC) in the leaf, and seed yield. The rank order of the competitive ability of Italian ryegrass was SD4 > SD3 > SD2 > SD1 under optimal weather conditions for crop development. Under climatic stress conditions, however, neither effect of ryegrass densities nor cleavers was pronounced on competitive ability of ryegrass with different stands.

 

Italian ryegrass (Lolium italicum L. cv. Tetraflorum) seed production is an important industrial activity in Serbia. Cleavers (Galium aparine L.) interferes in Italian ryegrass seed production as well as in many other crops. The effect of stand density of Italian ryegrass on its competitive interaction with cleavers was investigated in western Serbia in the 2005-2006 and 2006-2007 cropping seasons. The established density treatments of Italian ryegrass were 5 kg ha-1 seeding rate with 60 cm row spacing (SD1), 5 kg ha-1 with 20 cm (SD2), 20 kg ha-1 with 60 cm (SD3), and 20 kg ha-1 with 20 cm (SD4). The interaction between Italian ryegrass and cleavers was evaluated by SPAD reading, relative nitrogen content (RNC) in the leaf, total nitrogen content (TNC) in the leaf, and seed yield. The rank order of the competitive ability of Italian ryegrass was SD4 > SD3 > SD2 > SD1 under optimal weather conditions for crop development. Under climatic stress conditions, however, neither effect of ryegrass densities nor cleavers was pronounced on competitive ability of ryegrass with different stands.

Makale detayları

The effect of ryegrass (Lolium italicum L.) stand densities on its competitive interaction with cleavers (Galium aparine L.)

Yazarlar:

Sava VRBNICANIN | Mirjana KRESOVIC | Dragana BOZIC | Aleksandar SIMIC | Radojka MALETIC | Ahmet ULUDAĞ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2012 Vol.36 Issue 1, pp.121-131

Belge Tipi:

Makale

Yayın Tarihi:

12/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000808009

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Key words: Relative nitrogen content (RNC) in the leaf

SPAD reading

total nitrogen content (TNC)

Sayı

Makale detayları

The effect of ryegrass (Lolium italicum L.) stand densities on its competitive interaction with cleavers (Galium aparine L.)

Yazarlar: Sava VRBNICANIN | Mirjana KRESOVIC | Dragana BOZIC | Aleksandar SIMIC | Radojka MALETIC | Ahmet ULUDAĞ

Yayıncı: TUBITAK

Dergi: Turkish Journal of Agriculture and Forestry 2012 Vol.36 Issue 1, pp.121-131

Belge Tipi: Makale

Yayın Tarihi: 12/2011

Belge Dili: Türkçe

Document ID (Org No.): 2000808009

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

Key words: Relative nitrogen content (RNC) in the leaf

SPAD reading

total nitrogen content (TNC)

Sayı

Yazarlar:

Sava VRBNICANIN | Mirjana KRESOVIC | Dragana BOZIC | Aleksandar SIMIC | Radojka MALETIC | Ahmet ULUDAĞ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2012 Vol.36 Issue 1, pp.121-131

Belge Tipi:

Makale

Yayın Tarihi:

12/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000808009

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X