The Effect of Potassium Biofertilizer and Chemical Fertilizer on Quantitative and Qualitative Traits of Periwinkle (Catharanthus roseus Cv. ‘Acillata’)
الموضوعات : مجله گیاهان زینتی
Maryam Jadid Soleimandarabi
1
(Young Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran)
Davood Hashemabadi
2
(Department of Horticulture, Rasht Branch, Islamic Azad University, Rasht, Iran)
Fatemeh Zaredost
3
(Young Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran)
الکلمات المفتاحية: Biofertilizer, Potassium, shelf life, Petal anthocyanin, Potassium dissolving bacteria,
ملخص المقالة :
The effect of potash biofertilizer and chemical fertilizer was studied on quantitative and qualitative traits of periwinkle in a factorial experiment based on a Randomized Complete Design with three replications, 48 experimental units, and two factors: (1) different methods of potash bio-fertilizer application at four levels of control (B0), seed inoculation (B1), root inoculation (B2) and seed inoculation × root inoculation (B3), and (2) different rates of potassium on fertigation at four levels of 0 (K0), 100 (K1), 200 (K2) and 300 mgL-1 (K3). It was found that the longest shelf life of 35.58 days was related to the treatment of root inoculation × 100 mgL-1 K. The highest number of auxiliary branches (3.66), number of leaves (42.88), plant fresh weight (17.69 g), number of flowers (4.46), and chlorophyll a (10.61 mg g-1 F.W.) were obtained from the treatment of seed inoculation × 300 mgL-1 K. The treatment of root inoculation × 200 mgL-1 K was the best treatment for plant potassium content (28.9 mgkg-1). The highest petal anthocyanin content amounted 178.04 mg 100 g-1 D.W. was observed in the treatment of ‘seed inoculation × root inoculation’ × 0 mg l-1 K. The best treatment of enhancing of qualitative and quantiative traits of periwinkle was seed inoculation × 300 mgL-1 K.