WANG Xiaojuan,LI Xueqiao,GAO Fanghua,et al.Effects of Nitrogen Level on Growth and Photosynthetic Characteristics of Muskmelon Planted in Greenhouse on the Tropic Region[J].Northern Horticulture,2017,41(19):46-51.[doi:10.11937/bfyy.20170616]
氮素水平对热区设施厚皮甜瓜生长发育及光合特性的影响
- Title:
- Effects of Nitrogen Level on Growth and Photosynthetic Characteristics of Muskmelon Planted in Greenhouse on the Tropic Region
- Keywords:
- nitrogen level; muskmelon; photosynthetic characteristics; growth
- 文献标志码:
- A
- 摘要:
- 以“翠甜”厚皮甜瓜为试材，采用砂培法,以改良的Hoagland完全营养液配方为基准配方，设置0、5、10、15、20、25 mmol?L-1 6个氮素水平，研究了不同氮素水平对热区设施厚皮甜瓜生长发育及光合特性的影响。结果表明：当氮素水平在10 mmol?L-1时，节位数、最大叶宽、最大叶长、茎粗、叶片数、果长、果宽、种腔宽、肉厚、单果鲜干质量、叶绿体色素含量、净光合速率达到最大值。随着氮素水平的增加中心糖糖度先增加后降低，在氮素水平为15 mmol?L-1时中心糖糖度最大。
- Abstract:
- Muskmelon variety of ‘Cuitian’ was used as material,by sand culture experiment of modified Hoagland nutrient solution formula,six nitrogen levels（0,5,10,15,20,25 mmol?L-1） were conducted to study the effects of different nitrogen levels on growth and photosynthetic characteristics in the greenhouse on the tropic region.The results showed that the number of notes,maximum width of blade,maximum length of blade,stem diameter,number of leaves,fruit length,fruit width,seed chamber width,fruit flesh thickness,fruit fresh weight,fruit dry weight,the content of chloroplast pigment and net photosynthetic rate were maximum when nitrogen level was 10 mmol?L-1;central sugar content increased at first and decreased afterwards with the increase of nitrogen level,and central sugar content reached maximum when nitrogen level was 15 mmol?L-1.
参考文献/References:
[1]陈文科.海南统计年鉴2016[M].北京:中国统计出版社,2016.
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备注/Memo
第一作者简介：王小娟（1985-），女，硕士，助理研究员，现主要从事植物营养与生理等研究工作。E-mail:hnnkywxj@163.com.