Email this article EFFECTS OF NPK RATES ON GROWTH AND SOME PHYSIOLOGICAL INDICES OF MINIATURE DENDROBIUM ORCHID (Dendrobium sp.)
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Received: 29/06/19 Revised: 07/08/19 Published: 09/09/19Authors
1. Cao Phi Bang
, Hung Vuong University2. Tran Thi Thanh Huyen, Hanoi National University of Education
3. Chu Thi Bich Ngoc, Hung Vuong University
4. Tran Thi Mai Lan, Hung Vuong University
5. Nguyen Thi Thanh Huong, Hung Vuong University
6. Le Thi Man, Hung Vuong University
7. Nguyen Phuong Quy, Hung Vuong University
8. Tran Trung Kien, Hung Vuong University
9. Bui Thi Hai Yen, Hung Vuong High Quality School
Abstract
Nutrient has an important influence on physiology and biochemistry of plants. This work aims to study on influences of NPK rates on some biochemical and flowering indices of miniature Dendrobium (Dendrobium sp.) In this study, four NPK rates were applied by foliar spraying on Dendrobium plants, including CT1 (10:30:10), CT2 (10:10:30), CT3 (6:30:30), CT4 (10:30:30). The results showed that all four NPK rates increased significantly both catalase and peroxidase, two of enzymes breaking down hydrogen peroxide in plants. Flowering rate was enhanced and flower bud initiation was earlier in plants treated with NPK. The results revealed that application of NPK increased the spike length, number of florets per spike, floret width of miniature Dendrobium. In particular, 100% miniature Dendrobium were flowering when treated with NPK=6:30:30. The spike length, number of florets per spike, floret width were strongest enhanced when plants treated with both NPK rates (6:30:30 and 10:30:30). These study results suggested that both NPK=6:30:30 and 10:30:30 could be used in producing miniature Dendrobium orchids.
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[1]. A. A. Fadelah, in ISHS Acta Horticulturae 714: XXII International Eucarpia Symposium, Section Ornamentals, Breeding for Beauty, A. Mercuri, T. Schiva, Eds., pp. 51-58, 2006.
[2]. A. A. Fadelah, "Selection of miniature Dendrobium orchids as potential potted plants", Journal of tropical agriculture and food science, 32, pp. 1-8, 2004.
[3]. Y. T. Wang, "Potassium nutrition affects Phalaenopsis growth and flowering", HortScience 42, pp. 1563-1567, 2007.
[4]. Nguyễn Thị Kim Lí, Hoàng Thị Lan Hương, Lê Đức Thảo, Nghiên cứu ảnh hưởng của các biện pháp bón phân đến sinh trưởng phát triển của lan Hồ điệp HL3 (Phalaenopsis stockhon). Kết quả nghiên cứu khoa học công nghệ 2006-2010, Viện Khoa học Nông nghiệp, tr. 727-731, 2010.
[5]. R. G. Bichsel, T. W. Starman, Y.-T. Wang, "Nitrogen, phosphorus, and potassium requirements for optimizing growth and flowering of the nobile dendrobium as a potted orchid", HortScience, 43, pp. 328-332, 2008.
[6]. M. Anitha, M. Kannan, "Effect of Water Soluble Fertilizers on Growth and Yield of Dendrobium Orchid cv. Earsakul", Trends in Biosciences, 8, pp. 1591-1594, 2015.
[7]. A. Patnaik, M. Kannan, M. Ganga, S. Vincent, "Studies on influence of nutrient and growth regulator interactions on growth, yield and quality of Dendrobium orchid cv. Sonia 17", Indian society of ornamental horticulture, 16, pp. 75-85, 2017.
[8]. H. P. Sudeep, G. K. Seetharamu, C. Aswath, P. M. Munikrishnappa, K/ N. Sreenivas, G. Basavaraj, D. M. Gowda, "Effect of varying levels of foliar nutrients on growth and yield of Dendrobium orchid cv. Sonia-17", Int. J. Pure App. Biosci., 6 (5), pp. 417-425, 2018.
[9]. Nguyễn Văn Mã, La Việt Hồng, Ong Xuân Phong, Phương pháp nghiên cứu Sinh lí học thực vật, Nxb Đại học Quốc gia Hà Nội, Hà Nội, tr. 223, 2013.
[10]. Nguyễn Thị Thu Đông, Phạm Thị Nụ, Hà Đăng Chiến, La Việt Hồng, Cao Phi Bằng, Nguyễn Văn Đính, "Ảnh hưởng của một số phân bón lá đến sinh trưởng, sắc tố quang hợp và hoạt độ enzym catalase ở cây lan Mokara", Tạp chí Khoa học & Công nghệ, Đại học Thái Nguyên, Chuyên san Khoa học Nông nghiệp - Lâm nghiệp - Y dược, 187(11), tr.113-118, 2018.
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