Effects of Rhizobacteria on Plant Development, Quality of Flowering and Bulb Mineral Contents in Hyacinthus orientalis L.

Abstract

Size of bulbs is directly proportional to the quality of the flower, the commercial value of the bulb and getting more bulblet. The research was carried out to evaluate the effects of PGPR on plant growth parameters, flowering, bulb quality and bulb mineral contents in hyacinth (Hyacinthus orientalis L. cv. Aiolos) under greenhouse condition. In the study, there were 5 applications: (T1) Pseudomonas putida strain RCK-42A, (T2) Kluyvera cryocrescens strain RCK-113C, (T3) Paenibacillus polymyxa strain RCK-12E, (T4) Bacillus subtilis strain RCK-17C, and (T5) Control (uninoculated bacteria). The surface-sterilized bulbs were incubated separately by shaking at 80 rpm for two hours at 28 ºC to coat the bulbs with the bacteria. The chlorophyll content (50.02), leaf length (26.03 cm), leaf area (268.38cm 2 ), flower fresh and dry weight (15.54 g and 0.88 g) in T2 (Kluyvera cryocrescens strain RCK-113C) was found as the maximum according to other applications. The highest leaf width (6.37 cm) and the highest floret number were observed in T4. It was shown that the maximum bulb diameter (42.57 mm), bulb length (40.01 mm) and bulb weight (12.01 g) were determined in T2. The maximum N (2.90%), P (1.98%) and Ca (1.74%) were found in T3. Maximum Fe (0.48 mg kg -1 ), Mn (151.20 mg kg -1 ) and Zn (35.28 mg kg -1 ) were found in T1. Use of especially Kluyvera cryocrescens strain RCK-113C and Pseudomonas putida strain RCK-42A bacterial isolates may be effective in maintaining the sustainability of the environment and growing medium in the cultivation of hyacinth and also the development of bio fertilizer.

Investigation of the effects of some bacterial isolates and fertilizer applications on nutrient contents of hyacinth

“…With the help of bacterial applications, boost in nutrient uptake, implementing plant growth hormones, raising chlorophyll content and organic acids, it is fairly possible to increase the plant growth. (Parlakova Karagöz et al, 2019). Previous studies are coherent with the present ones in this matter.…”

“…Unlike the other studies (Eid et al, 2009;Parlakova Karagöz et al, 2019), compared to NPK and control applications, lower values of microbial fertilizer applications in N and P intake of hyacinth leaves and bulbs were obtained. According to Çığ and Çığ (2019), the control plants demonstrated the highest value (with no bacterial application and fertilization) of the weight, length and width of hyacinth bulb (both laboratuary and field conditions), however bacterial applications had negative effects on these values.…”

“…Alongside, Pseudomonas putida application revealed the highest Mg, Fe, Mn and Zn contents. (Parlakova Karagöz et al, 2019). Bashir et al (2019) found that they improved the supply of the element K in their field study with tulip (Tulipa gesneriana L. cv.…”

Some Phenological and Morphological Properties of <i>Hyacinthus Orıentalis</i> cv. “Delft Blue” with Treated Bacterial Inoculations

“…With the inoculation of PGPRs on Hyacinthus orientalis cv. 'Aiolos' , there had been increases in leaf width and length, number of florets, flower diameter and length, stalk thickness, bulb diameter, length and weight in greenhouse conditions [27]. It has been concluded that the bacterial formulation applications increased in the number of bulbs and quality of the tulip cultivars in the field conditions [28].…”