Research Article | OPEN ACCESS
Density and Reserved Leaf Number of Tobacco to be Replanted in Cold Waterlogged Paddy Field
1Gui-xing Meng, 1Jun Tan, 3Dan-ying Xing, 2Da-peng Tang, 3Peng-fei Li, 3Yan-xia Zhang, 1Guang huo and 1Bi-kun Xiang
1Enshi Branch of Hubei Tobacco Companies, Enshi 445000, China
2Laifeng Branch of Enshi Tobacco Companies, Ehshi 445700, China
3Agricultural College, Yangtze University, Jingzhou 434025, China
Advance Journal of Food Science and Technology 2013 4:436-439
Received: October 31, 2012 | Accepted: January 03, 2013 | Published: April 15, 2013
Abstract
To study the effects of density and reserved leaf number on the growth duration, agronomic character, yield and output value, the test was conducted on the density (Ai): (16665, 13875 and 11895 plants/hm2, respectively) and reserved leaf number (Bj): (26, 22 and 18 pieces, respectively) for planting tobacco in cold waterlogged paddy field. The results showed that: (1) the density has certain effect on the growth duration. The budding period of low density is 1.7-2 days earlier than high density; (2) In the mature period, correlative analysis showed that there was a significant positive correlation between density and plant height (r31 = 0.9992, p<0.01 and there were negative correlation between density and stem girth, total leaf number and maximum leaf area, but not reach significant level; (3) The results showed that there is a positive correlation between density and yield (r31 = 0.9318), but the highest output value was the one whose density was 925 plants/667 m2; (4) Correlative analysis showed that there is a significant positive correlation between reserved leaf number and yield and output value (r81 = 0.9985, p<0.01, r82 = 0.9851, p<0.05); (5) The first five leading yield is A1B1, A2B1, A1B2, A1B3, A2B2. The first five leading output value is A2B2, A2B1, A1B1, A1B3, A2B3; (6) Analysis of output value and economic traits of tobacco result showed that the best combination of planting tobacco in cold waterlogged paddy field was 13875 plants/hm2with 22 pieces/plant.
Keywords:
Cold waterlogged paddy field, density, flue-cured tobacco, replant, reserved leaf number,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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