Phenological Evaluation of Autumn Coloration in Parthenocissus quinquefolia L. using Visual Assessment and Brix Measurement

Candan Kuş Şahin; Büşra Onay

Makale detayları

Phenological Evaluation of Autumn Coloration in Parthenocissus quinquefolia L. using Visual Assessment and Brix Measurement

Yazarlar:

Candan Kuş Şahin | Büşra Onay

Yayıncı:

Duzce University

Ana Başlıklar:

Bitki Materyali ve Yetiştiriciliği

Dergi:

Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.471-482

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001352974

pISSN:

2148-7871

Anahtar kelimeler:

Özet:

 Direct ground-based visual assessment, those that use repeating photography by a camera, has been conducted. We have found that the changes in phenology are easily visualized using repeat photographs, which were visually examined, and key phenology events, including autumn coloration, were recorded for Parthenocissus quinquefolia L. The sugar content of P. quinquefolias parts were found to be in range of 18.95 Bx to 9.72 Bx for leaves, in range of 10.99 Bx to 16.78 Bx for berries and 5.74 Bx to 11.70Bx for stems. However, leaf Brix values showed a correlation with visual color ratings, with higher Brix values corresponding to green colors and lower values corresponding to strong reddish colors. It is clear that autumn phenology has an impact on the sugar content of P. quinquefolias parts to some extent. It is important to note that the 0Bx properties of leaves and berries were found to be sensitive to sampling parts of P. quinquefolia. It was suggested that the autumn coloration of P. quinquefolia could be effectively monitored through five distinct color stages. Different parts of P. quinquefolia showed various levels of coloration from mid-May to mid-December. However, green and red hues are visible on P. quinquefolias leaves in all directions until mid-November, while only leaves in the north-east direction V at the end of November show rather early, intense red coloration and maturation compared to others. The light level lux also appears to be an important factor in the autumn coloration of P. quinquefolia.

 Direct ground-based visual assessment, those that use repeating photography by a camera, has been conducted. We have found that the changes in phenology are easily visualized using repeat photographs, which were visually examined, and key phenology events, including autumn coloration, were recorded for Parthenocissus quinquefolia L. The sugar content of P. quinquefolias parts were found to be in range of 18.95 Bx to 9.72 Bx for leaves, in range of 10.99 Bx to 16.78 Bx for berries and 5.74 Bx to 11.70Bx for stems. However, leaf Brix values showed a correlation with visual color ratings, with higher Brix values corresponding to green colors and lower values corresponding to strong reddish colors. It is clear that autumn phenology has an impact on the sugar content of P. quinquefolias parts to some extent. It is important to note that the 0Bx properties of leaves and berries were found to be sensitive to sampling parts of P. quinquefolia. It was suggested that the autumn coloration of P. quinquefolia could be effectively monitored through five distinct color stages. Different parts of P. quinquefolia showed various levels of coloration from mid-May to mid-December. However, green and red hues are visible on P. quinquefolias leaves in all directions until mid-November, while only leaves in the north-east direction V at the end of November show rather early, intense red coloration and maturation compared to others. The light level lux also appears to be an important factor in the autumn coloration of P. quinquefolia.

 Direct ground-based visual assessment, those that use repeating photography by a camera, has been conducted. We have found that the changes in phenology are easily visualized using repeat photographs, which were visually examined, and key phenology events, including autumn coloration, were recorded for Parthenocissus quinquefolia L. The sugar content of P. quinquefolias parts were found to be in range of 18.95 Bx to 9.72 Bx for leaves, in range of 10.99 Bx to 16.78 Bx for berries and 5.74 Bx to 11.70Bx for stems. However, leaf Brix values showed a correlation with visual color ratings, with higher Brix values corresponding to green colors and lower values corresponding to strong reddish colors. It is clear that autumn phenology has an impact on the sugar content of P. quinquefolias parts to some extent. It is important to note that the 0Bx properties of leaves and berries were found to be sensitive to sampling parts of P. quinquefolia. It was suggested that the autumn coloration of P. quinquefolia could be effectively monitored through five distinct color stages. Different parts of P. quinquefolia showed various levels of coloration from mid-May to mid-December. However, green and red hues are visible on P. quinquefolias leaves in all directions until mid-November, while only leaves in the north-east direction V at the end of November show rather early, intense red coloration and maturation compared to others. The light level lux also appears to be an important factor in the autumn coloration of P. quinquefolia.

 Bu çalışmada bir kamera tarafından tekrarlanan fotoğrafların kullanıldığı doğrudan zemin tabanlı görsel değerlendirme yapılmıştır. Fenolojideki değişikliklerin, tekrarlanan fotoğraflar kullanılarak kolayca görselleştirilebildiğini ve Parthenocissus quinquefolia L. için sonbahar renklenmesi de dahil olmak üzere önemli fenoloji olaylarının kaydedildiği görülmüştür. P. quinquefolianın parçalarının şeker içeriği yapraklar için 18.95 Bx ila 9.72 Bx aralığında, meyveler için 10.99 Bx ila 16.78 Bx aralığında ve gövdeler için 5.74 Bx ila 11.70 Bx aralığında bulunmuştur. Bununla birlikte, yaprakların Brix değerleri görsel renk derecelendirmeleriyle bir miktar ilişki gösterirken, izlenen örneklerde koyu yeşil renklerden güçlü kırmızımsı renklere kadar değişen renkler mevcuttur. Sonbahar fenolojisinin P. quinquefoliann parçalarının şeker içeriği üzerinde belli bir düzeyde etkisi olduğu açıktır. Sonbahar renklenmesinin izlenmesi sırasında P. quinquefolia nın beş renklenme dönemi boyunca izlenebileceği önerilmiştir. P. quinquefolianın farklı kısımları Mayıs ortasından Aralık ortasına kadar çeşitli seviyelerde renklenme göstermiştir. Bununla birlikte, Kasım ortasına kadar P. quinquefolianın tüm yönlerdeki yapraklarında yeşil ve kırmızı tonlar görülebilirken, Kasım sonunda sadece kuzeydoğu yönündeki V yapraklar diğerlerine kıyasla oldukça erken, yoğun kırmızı renklenme ve olgunlaşma göstermektedir. Işık seviyesi lux de P. quinquefolianın sonbahar renklenmesinde önemli bir faktör olarak görülmektedir.

Makale detayları

Phenological Evaluation of Autumn Coloration in Parthenocissus quinquefolia L. using Visual Assessment and Brix Measurement

Yazarlar:

Candan Kuş Şahin | Büşra Onay

Yayıncı:

Duzce University

Ana Başlıklar:

Bitki Materyali ve Yetiştiriciliği

Dergi:

Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.471-482

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001352974

pISSN:

2148-7871

P. quinquefolia L. Autumn colorations

Landscape

Phenological observationP. quinquefolia L

Sonbahar renklenmesi

Peyzaj

Fenolojik gözlem

Sayı

Makale detayları

Phenological Evaluation of Autumn Coloration in Parthenocissus quinquefolia L. using Visual Assessment and Brix Measurement

Yazarlar: Candan Kuş Şahin | Büşra Onay

Yayıncı: Duzce University

Ana Başlıklar: Bitki Materyali ve Yetiştiriciliği

Dergi: Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.471-482

Belge Tipi: Makale

Yayın Tarihi: 6/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001352974

pISSN: 2148-7871

P. quinquefolia L. Autumn colorations

Landscape

Phenological observationP. quinquefolia L

Sonbahar renklenmesi

Peyzaj

Fenolojik gözlem

Sayı

Yazarlar:

Candan Kuş Şahin | Büşra Onay

Yayıncı:

Duzce University

Ana Başlıklar:

Bitki Materyali ve Yetiştiriciliği

Dergi:

Düzce Üniversitesi Orman Fakültesi Ormancılık Dergisi Vol.21 Issue 1, pp.471-482

Belge Tipi:

Makale

Yayın Tarihi:

6/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001352974

pISSN:

2148-7871