The differences among defoliants application times were significant for yellowness, thrash area and thrash count but non -significant for fiber lenght, micronaire, fiber strenght, elongation, uniformity index, short fibre index and reflectance.
📌 3 Key Takeaways
🎯
Objective & Hypothesis:This study was conducted to determine the effects of defoliant used at different times such as at first applying time (first boll cracking on the 10 node from terminal), second applying time (first boll cracking on the 8 node from terminal), third applying time (first boll cracking on the 6 node from terminal), fourth applying time (first boll cracking on the 4 node from terminal) on some quality properties of two cotton {Gossypium hirsutum L.) cultivars (lachata ve SG-501) in mechanical harvesting under Harran region conditions.
📊
Key Findings & Data:This study was conducted to determine the effects of defoliant used at different times such as at first applying time (first boll cracking on the 10 node from terminal), second applying time (first boll cracking on the 8 node from terminal), third applying time (first boll cracking on the 6 node from terminal), fourth applying time (first boll cracking on the 4 node from terminal) on some quality properties of two cotton {Gossypium hirsutum L.) cultivars (lachata ve SG-501) in mechanical harvesting under Harran region conditions.
💡
Conclusion & Impact:The differences among defoliants application times were significant for yellowness, thrash area and thrash count but non -significant for fiber lenght, micronaire, fiber strenght, elongation, uniformity index, short fibre index and reflectance.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters
Abstract
This study was conducted to determine the effects of defoliant used at different times such as at first applying time (first boll cracking on the 10 node from terminal), second applying time (first boll cracking on the 8 node from terminal), third applying time (first boll cracking on the 6 node from terminal), fourth applying time (first boll cracking on the 4 node from terminal) on some quality properties of two cotton {Gossypium hirsutum L.) cultivars (lachata ve SG-501) in mechanical harvesting under Harran region conditions. The differences among defoliants application times were significant for yellowness, thrash area and thrash count but non -significant for fiber lenght, micronaire, fiber strenght, elongation, uniformity index, short fibre index and reflectance.
Özet
1998-2000 yıllarında Harran ovası koşullarında, iki pamuk (Gossypium hirsutum L.) çeşidinde (Sure Grow-501 ve Lachata) uçtan itibaren aşağıya doğru 10., 8., 6., 4., boğumundaki meyve dallarının birinci konumundaki koza açtığı zaman yapılan yaprak döktürücü uygulamalarının bazı lif kalite özelliklerine etkileri araştırılmıştır. Sarılık, cepel sayısı, cepelin kapladığı alan yüzdesi yönünden yaprak döktürücü uygulamaları arasında önemli; lif inceliği, lif uzunluğu, lif kopma dayanıklılığı, lif kopma uzaması, lif uzunluk uyum indeksi, parlaklık,kısa lif oranı, yabancı madde miktarı yönünden önemli olmayan farklar saptanmıştır.
🔖
Cite This Article
GÖRMÜŞ, Ö., ÖZKAN, N. (2022). The effects of defoliant applications times on some quality properties in cotton (Gossypium hirsutum L.) under Harran region conditions. Mustafa Kemal Üniversitesi Ziraat Fakültesi Dergisi, Cilt: 7 - Sayı: 1-2, 27–38. https://ajindex.com/articles/583306
References (6)
Anonim 1995. Türkiye'de Bölgeler ve Sezonlar İtibarıyla Pamuk Durumunun Değerlendirilmesi. İzmir Ticaret Borsası Yayınları, Y.No.54 Camacho, F., Cosico, V., Cabangbang, R.1982. The effect of defoliants on seed cotton yield and lint quality [in the Philippines]. Don Mariano Marcos State University, Batac, Ilocos Norte Philippines) Cotton Research and Development Inst. Annual Technical Report Crop Year 1980-81. Ilocos Norte (Philippines), v. 2: p 334-352.
El-Kassaby, A.T., Kandil, T.A.A.1985. Effect of defoliations and nitrogen fertilization on Egyptian cotton yield. Field Crop Abstracts, 39.12.1.No.9699: p: 1113. Godoy Avila, S., Moreno Alvarado, L.E., Garcia Astaneda, E.A., 1995. Date Of Chemical Defoliation of Cotton Plants And its Effect On Yield, Earliness And Fiber Quality. Agriculture Tecnica En Mexico 1995 21(2): 1711- 11182. Gözkaya, F.,1978. Pamuk Hasadında Mekanizasyon Ve Sorunları. T.C. Tarım Orman Ve Köyişleri B.Adana Bölge Pam. Araşt. No:35: 7-44.
Hernandez-Jasso, A.; Gutierrez-Zamorano, F.J. 1999. Response Of Cotton To Early Defoliation İn The YaquT Valley, Mexico. In 1996 Proceedings Beltwide Cotton Conferences, Nashville, Tn, Usa, 3-7 January, 9-12,.Volume 21219-1221.
Ismail, M.S., Abdel-Al, M.H., Eid, E.T., El-Akkad, M.H, 1990. Studies On Mcnair 220 Cotton Variety (Gossypium hirsutum L.) As Affected By Chemical Leaf Defoliation Under Egyptian Conditions Egypt]. Zagazig-Journal Of Agricultural Research Egypt). (Junl986). V. 13(1): P. 107-121. Issued 1990.
Snipes, C.E., Baskin, C.C., 1994. Influence Of Early Defoliation On Cotton Yield, Seed Quality, And Fiber Properties. Field Crops Research.37(2) 137-143.
Sodhi, K.S., Mukand Singh. 1981. Effect Of Chemical Defoliation Of Cotton Crop On The Time Of its Maturity. Indian Journal Of Ecology, 1981 8(1): 36-40.