Effects of different types of salt on the growth and development of pumpkin seedlings

doi:10.16178/j.issn.0528-9017.20240243

Abstract

Abstract:

In order to study the effects of different types of salt on the growth and development of pumpkin seedlings, 240 mmol·L^-1 strong acidic salt sodium dihydrogen phosphate, weak acidic salt potassium sulfate, neutral salt sodium chloride, weak alkaline salt sodium bicarbonate, strong alkaline salt sodium carbonate were used to treat Indian pumpkin A70, Chinese pumpkin A45, and Indian Chinese hybrid pumpkin 7045 during the seedling stages, and their plant height agronomic traits, leaf color, and relative chlorophyll content were investigated. The results showed that there were significant differences in the tolerance of pumpkins to different types of salt stress, with sodium chloride had the smallest impact, potassium sulfate and sodium bicarbonate had similar effects, and sodium carbonate and sodium dihydrogen phosphate had the greatest degree of impact. The effect of different types of salt on pumpkin is related to pH value. Leaf color and stem diameter can be selected as indicators for evaluating salt tolerance of pumpkin rootstocks.

Key words: acidic salt, alkaline salt, neutral salt, physiological acidic salt, pumpkin, leaf color, rootstocks

CLC Number:

S642.1

XING Nailin, WANG Yinger, YAN Leiyan, GU Binquan, WANG Yuhong. Effects of different types of salt on the growth and development of pumpkin seedlings[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(11): 2591-2596.

Figures/Tables 5

Fig.1 Performance of pumpkin seedlings under different types of salt treatments

Fig.2 Physiological index of pumpkin seedlings after various salt treatments

Fig.3 Principal component analysis of the performance and impact degree of each treatment

Fig.4 Cluster analysis of the effects of different types of salt on the seedling stage of different pumpkin materials

Fig.5 Cluster analysis of different pumpkin materials during seedling stage under the influence of different types of salt

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