Showing posts with label Potato. Show all posts
Showing posts with label Potato. Show all posts

11-1-3 EFFECT OF POTASSIUM AND MULCHING ON THE GROWTH AND YIELD OF POTATO


Authors: Asma Begum, Md. Hasanuzzaman Akand, Nahida Sultana*, Fariha Afia Bonni and Muslima Jahan Runia

*Corresponding authour’s Email: nsultanasau12@gmail.com


Abstract

The present experiment was undertaken with the aims to investigate the response of potassium fertilizer and mulches on growth and yield of potato in the field condition during the period from November 2017 to March 2018 at Horticultural farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. The variety “Diamant” was used as a test crop. Four levels of potassic fertilizer (KCl) viz. K0: (Control), K1: 110 kg ha-1, K2: 140 kg ha-1, K3: 170 kg ha-1 and three types of mulches viz. M0: (Control), M1: Straw, M2: Black polythene were used for the present study. The experiment was laid out in Randomized Block Design (RCBD) with three replications. Different potassium level showed significant influence on most of the parameters and the treatment. The highest yield (27.20 t ha-1) of potato was obtained in K2 treatment whereas the lowest (12.25 t ha-1) was obtained from K0. Considering the different mulches, the highest yield (24.57 t ha-1) of potato was obtained in M1 and the lowest (17.68 t ha-1) was obtained from the M0 treatment. In terms of the combined effect of potassium and mulching, most of the studied parameters were influenced significantly. The highest yield (31.75 t ha-1) was recorded from the combination treatment of K2M1 whereas the lowest yield (9.74 t ha-1) was found in the combination treatment K0M0. Hence, we summarized that 140 kg ha-1 potassium fertilizer with straw mulch gave the maximum output in terms of yield compared with other treatments.

Keywords: Potassium, Mulching, Potato.

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6-1-5-Himel et al

AN INVESTIGATION ON THE RHIZOCTONIA SOLANI INFECTING POTATO

Mahbubul kabir Himel*, Abdul Mannan Akanda and Abul khair
*Corresponding author; Email: himelbotju@juniv.edu

Abstract

Investigations were carried out on field disease of potato in BADC farm at Domar, Nilphamari.It was appeared that at least fourteen different symptoms, such as, leaf rosette, stiffness of the stem, production of aerial tuber, shortening of stolon, erupted tuber eyes, scurfing and development of light to dark brown lesions on the root as well as on the stem were developed in potato due to infection of R. solani. In many cases, the growing potato plants developed mild leaf curl and yellowing which seemed to be the characteristic symptoms produced by two major potato viruses – Potato virus Y (PVY) and Potato leaf roll virus (PLRV). However DAS-ELISA proved that those were not produced by PVY and PLRV. Moreover, all the symptoms were not associated with all the potato varieties surveyed. Rossette was absent in Asterix whereas stiffness of stem was found in Diamant and Cardinal. Cardinal and Asterix were free from aerial tuberization and erupted tuber eyes though Granula was free only from the later one. The result of the study demonstrated that the disease symptoms caused by R. solani varied depending on the potato varieties.

Keywords: R. solani., potato diseases , Diamant, Felsina, Cardinal, Granula, Asterix.

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Return Volume: Journal of Experimental Biosciences 6(1): January 2015
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5-2-12-Hossain et al

CONSEQUENCES OF PLANTING TIME AND FUNGICIDE APPLICATION IN CONTROLING LATE BLIGHT DISEASE OF POTATO VAR. DIAMANT

M.S. Hossain, M. Afroz, M.S. Islam, M.E.Haque* and T.K.Dey

*Corresponding author; E-mail: eakramul_haque@ymail.com

Astract
 An experiment was conducted at the Breeder Seed Production Centre, Bangladesh Agricultiural Research Institute, Debigonj, Panchagoarh to find out the appropriate treatment combination against late blight of potato during 2007-08 seasons under natural field condition. The split plot experiment included two planting dates, 15th November (D1) and 30th November (D2) and seven different spray treatments viz.  no spray (T1), one time spray of Dithane M-45 (T2), two times spray of Dithane M-45 (T3), one time spray of Secure (T4), two times  spray of  Secure (T5), 1st spray Dithane M-45+2nd spray Secure (T6), and  1st spray Secure+2nd spray Dithane M-45 (T7) using the popular  variety Diamant. All the parameters tested were significantly influenced by the effect of planting time and spray treatments. Potato planted at 15th November showed less infection of P. infestans and higher yield. Significantly higher tuber yield (32.15 t ha-1) was found from potato planted at 15th November which was higher by 34.29% than that of 30th November (23.94 t ha-1). All the spray treatments showed better yield over control treatment (T1). The highest yield of potato was obtained from the interaction treatment planting time D1 with 2 times spray Secure (36.38 t ha-1) which was statistically at per with 2 times spray Dithane M-45 (36.03 t ha-1) . Singly the highest net return of Tk.318250 ha-1with benefit cost ratio 3.11 was observed from two times spray Dithane M-45 while the lowest by no spray of Tk.167850 ha-1with benefit cost ratio 2.15.

Key words: Planting time, fungicide, late blight and potato.

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PERFORMANCE OF HERBICIDE HAMMER 24 EC IN POTATO FIELD

Author (s): I. M. Ahmed1, M. Shaheenuzzamn 2, U. A. Nadira 3, M. H. Ahmed 4 and A. Hossain5

 Abstract

A field experiment was conducted at Tuber Crops Research Substation of Munshigonj and Breeder Seed Production Farm, Debigonj of Bangladesh Agricultural Research Institute during Rabi (October to March) season of 2009-2010 to find out the optimum rate of Hammer 24 EC with or with out hand weeding for controlling weeds in potato field. Post planting (7-days after planting) spraying of Hammer 24 EC @ 104 to 125 ml ha-1 controlled 80 to 85% Bathua (Chenopodium album) weed, Amaranthus viridis (Shaknotey), Alternanthera philoxeroides (Maloncho), Lindernia anagallis (Panigas), Gnaphalium affine (Bonocopy) in both the locations. The highest tuber yields (24.34 t ha -1 at Munshigonj and 23.46 t ha -1 at Debigonj) were recorded with Hammer 24 EC treated @85 ml ha-1 at 7 DAP +1 HW at 25 DAP. The results were identical with the Hammer 24 EC treated @ 104 ml ha-1 at 7 DAP and @ 125 ml ha-1 at 7 DAP. Plants grown without herbicide (control) yielded 18.5 t ha-1 and 17.9 t ha-1 at Munsigonj and Debigonj, respectively.

Keywords: Herbicide, Potato and Yield



J. Expt. Biosci. 2(1): 11 –14, January 2011

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