Investigating the effect of bacteria PGPR in stimulating germination and improving the growth components of seeds Cerasus mahaleb (L.) Mill- (Study area: Faridunshahr, Isfahan province)
Subject Areas :bahman zamani kebrabadi 1 , Zahra Jaberalansar 2 , MASOUD ESMAEILI SHARIF 3
1 - PhD in forestry and forest ecology, Research Division of Natural Resources, Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Isfahan, Iran
2 - Expert Researcher, Research Division of Natural Resources, Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Isfahan, Iran
3 - Research Division of Natural Resources Isfahan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization, AREEO, Isfahan, I. R. Iran
Keywords: PGPR, Cerasus mahaleb, Bacillus sp, Azotobacter sp,
Abstract :
One of the most important techniques for improving the quality and quantity of seedlings is the use of seed treatment with PGPR, which can increase the plant's resistance to adverse conditions. For this purpose, the effect of seed inoculation of Cerasus mahaleb in 10 forest provenances of Fereydunshahr city, Isfahan province with the most important rhizosphere bacteria that stimulate plant growth, on the components of seed germination in a factorial experiment in the form of a randomized complete block design It was done with three replications in the greenhouse, seed inoculation with five levels including no bacterial inoculation (as a control), inoculation with (Bacillus sp.), (Azotobacter sp.), (Pseudomonas fluorescens) and a combination treatment of three growth stimulating (MIX) and calculation of different components of Cerasus mahaleb seed germination was done. The results showed that mixed inoculation treatment (MIX) had the greatest effect on the indicators of germination speed (0.039 per day), seed germination (39.20), germination strength (20.38 percent) and The root length was (8.66 mm) compared to other treatments. P. fluorescens bacteria treatment also showed the best performance in germination percentage index (17.55%) and stem length (8.76 mm). On the other hand, the weakest performance among the bacterial treatments was related to the growth promoting bacteria (Bacillus sp.). Among the 10 areas of Cerasus mahaleb seed collection, Chal Khalil 1 and 2 forest reserve areas as well as Peshtkoh Som Durak 2 showed better seed germination indicators than other areas. In general, seed inoculation with PGPR can be a suitable solution for producing healthy and strong seedlings, better establishment, and also increasing the success of planting seedlings in disturbed and degraded habitats of Cerasus mahaleb in Zagros forests.
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