|Table of Contents|

Effect of Betaine (GB) and Salicylic Acid (SA) on Phytosynthetic Characters of Hot Pepper Under Drought Stress During Blossom and Fruit Period

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年11
Page:
18-23
Research Field:
Publishing date:

Info

Title:
Effect of Betaine (GB) and Salicylic Acid (SA) on Phytosynthetic Characters of Hot Pepper Under Drought Stress During Blossom and Fruit Period
Author(s):
MA Zhonglian1; 2; ZHOU Hangfei1; XIE Xiaoyu1
(1.College of Agronomy and Biotechnology,Southwest University,Chongqing 400716;2.College of Agronomy and Life Sciences,Zhaotong University,Zhaotong,Yunnan 657000)
Keywords:
hot pepper; drought stress; GB; GA; phytosynthetic characteristics
PACS:
-
DOI:
10.11937/bfyy.20181415
Abstract:
The purpose of this study was to explore the effects of exogenous salicylic acid (SA,200 mg?L-1) and glycine betaine (GB,100 mmol?L-1) on physiological characters of ‘Yunjiao 2’ of hot pepper (Capsicum annuum L.) under drought stress during blossom and fruit period by the water controlable pot planting.The results showed that under the condition of drought stress,exogenous GB and SA could effectively enhance the net photosynthesis rate (Pn),transpiration rate (Tr),stomatal conductance (Gs) and the intercellular CO2 concentration(Ci),the daily average net photosynthetic rate were GB>SA>drought.Through correlation analysis showed that the relationship of net photosynthesis rate with the environmental factors,net photosynthesis rate was positively correlated with stomatal conductance,while net photosynthesis rate was positively correlated with stomatal conductance and transpiration rate by exogenous GB and SA treatments under drought stress.

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Last Update: 2019-07-08