Defoliation Effects on Sunflower (Helianthus annuus L.) Seed Yield and Oil Quality

Sabri ERBAŞ; Hasan BAYDAR

Makale detayları

Defoliation Effects on Sunflower (Helianthus annuus L.) Seed Yield and Oil Quality

Yazarlar:

Sabri ERBAŞ | Hasan BAYDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 2007 Vol.31 Issue 2, pp.115-118

Belge Tipi:

Makale

Yayın Tarihi:

1/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000813299

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152

Anahtar kelimeler:

Özet:

 

The objective of the present study was to determine the influence of artificial defoliation on sunflower seed yield, oil content, and fatty acid composition. The research was carried out at Süleyman Demirel University, Isparta, Turkey, during 2002 and 2003. Six defoliation levels [0 (control), 5, 10, 15, 20 and 25 leaves per plant] were applied at the preflowering stage from bottom to top leaves. The results demonstrate a close relationship between yield reduction and the defoliation levels. The higher the defoliation level, the higher the yield reduction. Complete and partial leaf removal treatments reduced oil percentage of seed when compared with the undefoliated check. However, oleic acid and linoleic acid levels in seed were not significantly affected by defoliation treatments.

 

The objective of the present study was to determine the influence of artificial defoliation on sunflower seed yield, oil content, and fatty acid composition. The research was carried out at Süleyman Demirel University, Isparta, Turkey, during 2002 and 2003. Six defoliation levels [0 (control), 5, 10, 15, 20 and 25 leaves per plant] were applied at the preflowering stage from bottom to top leaves. The results demonstrate a close relationship between yield reduction and the defoliation levels. The higher the defoliation level, the higher the yield reduction. Complete and partial leaf removal treatments reduced oil percentage of seed when compared with the undefoliated check. However, oleic acid and linoleic acid levels in seed were not significantly affected by defoliation treatments.

Makale detayları

Defoliation Effects on Sunflower (Helianthus annuus L.) Seed Yield and Oil Quality

Yazarlar:

Sabri ERBAŞ | Hasan BAYDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 2007 Vol.31 Issue 2, pp.115-118

Belge Tipi:

Makale

Yayın Tarihi:

1/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000813299

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152

Helianthus annuus L.

leaf defoliation

yield

oil

fatty acids

Sayı

Makale detayları

Defoliation Effects on Sunflower (Helianthus annuus L.) Seed Yield and Oil Quality

Yazarlar: Sabri ERBAŞ | Hasan BAYDAR

Yayıncı: TUBITAK

Dergi: Turkish Journal of Biology 2007 Vol.31 Issue 2, pp.115-118

Belge Tipi: Makale

Yayın Tarihi: 1/2007

Belge Dili: Türkçe

Document ID (Org No.): 2000813299

Sıklık: İki Aylık

eISSN: 1303-6092

pISSN: 1300-0152

Helianthus annuus L.

leaf defoliation

yield

oil

fatty acids

Sayı

Yazarlar:

Sabri ERBAŞ | Hasan BAYDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Biology 2007 Vol.31 Issue 2, pp.115-118

Belge Tipi:

Makale

Yayın Tarihi:

1/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000813299

Sıklık:

İki Aylık

eISSN:

1303-6092

pISSN:

1300-0152