|Table of Contents|

Biochemical and Physiological Effect of Plant Growth Regulators and Fertilizer on Crocus sativus L.

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年18
Page:
122-126
Research Field:
Publishing date:

Info

Title:
Biochemical and Physiological Effect of Plant Growth Regulators and Fertilizer on Crocus sativus L.
Author(s):
RAO Junfeng1; LYU Weide1; SUN Junwei2
(1.Hangzhou Vocational & Technical College,Hangzhou,Zhejiang 310018；2.China Jiliang University,Hangzhou,Zhejiang 310018)
Keywords:
saffron (Crocus sativus L.); plant growth regulators; commercial fertilizer; antioxidant system; corm yield
PACS:
-
DOI:
10.11937/bfyy.20194444
Abstract:
Taking saffron (Crocus sativus L.) as test material,a field experimant was conducted to study the physiological and biochemical changes of its leaves after spraying plant growth regulators (DTA-6,brassinolide) and commercial fertilizers (Dugao-active calcium,Dugao-active algae+Gaolijin) were investigated to clarify the mechanisms of its yield variation.The results showed that after spraying plant growth regulators and commercial fertilizers,compared with control,Chl a content,Chl b content,Car content,soluble protein content and soluble sugar content increased by -1.3%-21.8%,21.3%-56.9%,5.2%-22.5%,33.2%-59.5%,0.5%-2.2%,8.2%-21.3% respectively,and corm yield increased by 6.8%-13.9%.Meanwhile,the activities of antioxidant enzymes SOD,POD and CAT increased by 24.7%-41.2%,2.6%-22.2%,0.3%-37.5% respectively,and the content of MDA,a product of membrane lipid peroxidation,decreased by 3.9%-32.0%.The effect of spraying plant growth regulators was better than commercial fertilizer with the best by spraying brassinolide.It is speculated that the increase of corm yield is due to the improvement of the ability of scavenging reactive oxygen species in antioxidant system (SOD,POD,CAT activities and Car content) of leaves by spraying treatment,thus increasing chlorophyll content and photosynthesis,and delaying the senescence of leaves.

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Last Update: 2020-12-23