Boron Stress on Some Physiological Indexes of Different Watermelon Genotypes

doi:10.11924/j.issn.1000-6850.casb15110049

Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (16): 56-60.doi: 10.11924/j.issn.1000-6850.casb15110049

Special Issue: 生物技术；园艺

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Boron Stress on Some Physiological Indexes of Different Watermelon Genotypes

Chen Sheng^1,2, Shi Mutian¹, Wu Yufen², Li Yongyu¹

(¹College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002;²Agricultural Bio-resource Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350003)

Received:2015-11-09 Revised:2016-05-05 Accepted:2015-12-24 Online:2016-06-17 Published:2016-06-17

Abstract

Abstract: In order to study the effect of boron stress on cytoderm, cell membrane and carbon-nitrogen metabolism of different watermelon genotypes, seed-used watermelon, ‘Heimeiren’ and wild watermelon were used in this test, cell membrane permeability, free proline content, soluble sugar content, soluble protein content and PAL, PPO activity were measured under four boron concentrations. The results showed that the PPO activity, cell membrane permeability and free proline content increased under boron stress, soluble sugar and soluble protein content decreased. PAL activity decreased when boron was deficient, while it increased under boron stress. Boron stress destroyed cytoderm structure of these three varieties, and the secondary production such as quinone could damage cytomembrane, which could increase cell membrane permeability and lead to dehydration, then the normal motion function was blocked, weakening the carbon and nitrogen metabolic system, and reducing the production of metabolites such as soluble sugar and soluble protein.

Chen Sheng,Shi Mutian,Wu Yufen and Li Yongyu. Boron Stress on Some Physiological Indexes of Different Watermelon Genotypes[J]. Chinese Agricultural Science Bulletin, 2016, 32(16): 56-60.

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Boron Stress on Some Physiological Indexes of Different Watermelon Genotypes

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