Please wait a minute...
ZJUS-B
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2009, Vol. 10 Issue (6): 422-426    DOI: 10.1631/jzus.B0920026
Biotechnology     
Contribution of leaf growth on the disappearance of fungicides used on tea under south Indian agroclimatic conditions
Chinnachamy KARTHIKA, Narayanan Nair MURALEEDHARAN
United Planter’s Association of South India (UPASI) Tea Research Institute, Tea Research Foundation, Nirar Dam B.P.O, Valparai 642 127, Tamilnadu, India
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

Abstract  The sprayed chemicals on tea leaves disappear over a period of time by the influence of rainfall elution, evaporation, growth dilution, and photodegradation. Influence of plant growth on the four fungicides (hexaconazole, propiconazole, tridemorph, and c) was studied to know the constructive loss of fungicides. The study shows that residues of fungicides sprayed on tea shoots got diluted by the growing process. The expansion of a leaf took 8 to 11 d and more than 50% of the fungicide residues were cleaned out during this leaf expansion period. Under south Indian agroclimatic condition, the fungicides are sprayed at an interval of 10 d, so it is safe that the tea is harvested on the 10th day of the application of fungicides.

Key words： Tea shoots      Growth      Dilution      Fungicides      Residue loss     
Received: 22 January 2009     
CLC:  S571.1  
  S482.2  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Chinnachamy KARTHIKA
Narayanan Nair MURALEEDHARAN
Cite this article:

Chinnachamy KARTHIKA, Narayanan Nair MURALEEDHARAN. Contribution of leaf growth on the disappearance of fungicides used on tea under south Indian agroclimatic conditions. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2009, 10(6): 422-426.

URL:

http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.B0920026     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2009/V10/I6/422

[1] Xun Tan, Fan-guo Juan, Ali Q. Shah. Involvement of endothelial progenitor cells in the formation of plexiform lesions in broiler chickens: possible role of local immune/inflammatory response[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2017, 18(1): 59-69.
[2] Zhong-dong Wang, Fan-yong Qu, Yuan-yuan Chen, Zhang-shen Ran, Hai-yan Liu, Hai-dong Zhang. Involvement of microRNA-718, a new regulator of EGR3, in regulation of malignant phenotype of HCC cells[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2017, 18(1): 27-36.
[3] Jing Zhao, Shi-wei Li, Qian-qian Gong, Ling-cui Ding, Ye-cheng Jin, Jian Zhang, Jian-gang Gao, Xiao-yang Sun. A disputed evidence on obesity: comparison of the effects of Rcan2−/− and Rps6kb1−/− mutations on growth and body weight in C57BL/6J mice[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(9): 657-671.
[4] Sabuj Kanti Mazumder, Simon Kumar Das, Yosni Bakar, Mazlan Abd. Ghaffar. Effects of temperature and diet on length-weight relationship and condition factor of the juvenile Malabar blood snapper (Lutjanus malabaricus Bloch & Schneider, 1801)[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(8): 580-590.
[5] Wolfgang Huber, Veit Phillip, Josef H?llthaler, Caroline Schultheiss, Bernd Saugel, Roland M. Schmid. Femoral indicator injection for transpulmonary thermodilution using the EV1000/VolumeView®: do the same criteria apply as for the PiCCO®?[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(7): 561-567.
[6] Lin Huang, Xian-yong Ma, Zong-yong Jiang, You-jun Hu, Chun-tian Zheng, Xue-fen Yang, Li Wang, Kai-guo Gao. Effects of soybean isoflavone on intestinal antioxidant capacity and cytokines in young piglets fed oxidized fish oil[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(12): 965-974.
[7] Rados?aw Wieczór, Anna Maria Wieczór, Gra?yna Gadomska, Katarzyna Stankowska, Jacek Fabisiak, Karol Suppan, Grzegorz Pulkowski, Jacek Budzyński, Danuta Ro??. Overweight and obesity versus concentrations of VEGF-A, sVEGFR-1, and sVEGFR-2 in plasma of patients with lower limb chronic ischemia[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(11): 842-849.
[8] Li-na Yu, Li-hong Sun, Min Wang, Min Yan. Research progress of the role and mechanism of extracellular signal-regulated protein kinase 5 (ERK5) pathway in pathological pain[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(10): 733-741.
[9] Xu-wei Luo, Kang Liu, Zhu Chen, Ming Zhao, Xiao-wei Han, Yi-guang Bai, Gang Feng. Adenovirus-mediated GDF-5 promotes the extracellular matrix expression in degenerative nucleus pulposus cells[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(1): 30-42.
[10] Wen-qiao Yu, Yun Zhang, Shao-yang Zhang, Zhong-yan Liang, Shui-qiao Fu, Jia Xu, Ting-bo Liang. Impact of misplaced subclavian vein catheter into jugular vein on transpulmonary thermodilution measurement variables[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(1): 60-66.
[11] Xiao-juan Xu, Liang Liu, Shu-kun Yao. Nerve growth factor and diarrhea-predominant irritable bowel syndrome (IBS-D): a potential therapeutic target?[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2016, 17(1): 1-9.
[12] Bo Wang, Sheng-yun Lin, Ying-ying Shen, Li-qiang Wu, Zhen-zhen Chen, Jing Li, Zhi Chen, Wen-bin Qian, Jian-ping Jiang. Pure total flavonoids from Citrus paradisi Macfadyen act synergistically with arsenic trioxide in inducing apoptosis of Kasumi-1 leukemia cells in vitro[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2015, 16(7): 580-585.
[13] Ming-xia Chen, Xiang-guang Li, Jun-xian Yang, Chun-qi Gao, Bin Wang, Xiu-qi Wang, Hui-chao Yan. Growth of embryo and gene expression of nutrient transporters in the small intestine of the domestic pigeon (Columba livia)[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2015, 16(6): 511-523.
[14] Chun-qi Gao, Yin-ling Zhao, Hai-chang Li, Wei-guo Sui, Hui-chao Yan, Xiu-qi Wang. Heat stress inhibits proliferation, promotes growth, and induces apoptosis in cultured Lantang swine skeletal muscle satellite cells[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2015, 16(6): 549-559.
[15] Tao-lin Yuan, Yu-hua Zhu, Meng Shi, Tian-tian Li, Na Li, Guo-yao Wu, Fuller W. Bazer, Jian-jun Zang, Feng-lai Wang, Jun-jun Wang. Within-litter variation in birth weight: impact of nutritional status in the sow[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2015, 16(6): 417-435.