RawnakAra Noor-E-Ferdous1, Balaram Roy2, Bikash C Sarker3andMdShariful Islam4*
1Bangladesh Stevia and Food Industries Limited, Dhaka-1216, Bangladesh, 2Department of Chemistry, Hajee Mohammed Danesh Science and Technology University, Dinajpur-5200, Bangladesh, 3Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, Bangladesh and *4Bangladesh Sugarcrop Research Institute, Regional Sugarcrop Research Station, Thakurgaon-5102, Bangladesh.r 5200, Bangladesh.
*Corresponding author: sharifbsri75@g mail.comhstu@gmail.com
Article history: Received: 12.7.2021, Accepted: 24.8.2021, Published: Online: 31.08.2021
To cite this article: Noor-E-Ferdous RA, Roy B, Sarker BC and Islam MS. 2021. Effect of different cultivation methods on the growth, yield and nutrient content of stevia.Intl. J. Agric. Med. Plants.2(4): 10-18.
ABSTRACT
The experiment was conducted to study the effects of different cultivation methods on growth, yield and nutrient content of stevia at the experimental farm of Bangladesh Sugarcrop Research Institute, Pabna, Bangladesh. The treatments were T1: Field cultivation, T2: Under mango tree cultivation and T3: Pot cultivation. The experiment was laid out in Complete Randomized Design (CRD) with five (5) replications. Data were recorded on the following parameters plant height (cm), number of branch plant-1, number of leaves plant-1, leaf area plant-1 (cm2), fresh weight plant-1 (g), dry weight plant-1 (g), fresh leaf yield plant-1 (g), dry leaf yield plant-1 (g), N (%), P (%), K (%), S (%), Ca (%), Mg (%) and Zn (µg g-1) contents of Stevia leaf. Significant different was recorded among different cultivation methods. Significantly the highest plant height was obtained in T2 (under mango tree cultivation) treatment (127.93 cm) at 147 DAT. The highest primary and secondary branches at 147 DAT were recorded in T1 (field cultivation) treatment (12.72) and (31.83), respectively. The number of leaf plant-1 and leaf area plant-1 of stevia were significantly influenced by different cultivation methods and the highest was recorded in T1 treatment. The highest fresh weigh (165.92 g plant-1) and dry (44.15 g plant-1) plant-1 were obtained from T1 treatment. Significantly the highest fresh leaf yield (91.37 g plant-1 and 4512.12 kg ha-1) and dry leaf yield (24.83 g plant-1and 1226.17 kg ha-1) were obtained from T1 treatment also. The N content in stevia leaf ranged from 1.62 to 1.71%. The highest (0.128%) and the lowest (0.085%)Phosphorus content was obtained in T1 and T2 treatment, respectively. The K content in stevia leaf ranged from 0.13 to 0.14%. The highest Sulphur content was recorded in T1 treatment (0.25%).The Ca and Mg content in stevia leaf ranged from (1.12 to 1.24%) and (0.102 to 0.104%), respectively. The highest Zn content was recorded in field cultivation (62.87 µg g-1). Results indicated the strong possibilities of field cultivation of stevia in Bangladesh.
Keywords: Stevia, method, leaf area and leaf yield.
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