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- Title
EFFECT OF VARIOUS WEED INFESTED PERIODS ON OKRA UNDER AGRO-CLIMATIC CONDITIONS OF D.I. KHAN, PAKISTAN.
- Authors
Zareen, Shah; Khan, Shahzada; Ahmad, Ijaz; Haroon, Muhammad; Khan, Inamullah; Ullah, Ikram
- Abstract
A field study in order to assess the effect of various weeds infested periods on okra crop {Abelmoschus esculentus (L.) Moench} was conducted during summer 2012, at Horticulture Research Area, Faculty of Agriculture, Gomal University Dera Ismail Khan. The aim of the study were to determine the critical period of weed competition in okra, and to investigate the most destructive weed competition period for the optimum growth and In-vivo okra yield. Study was laid out in randomized complete block design with seven treatments and four replications. The data were taken on various vegetative growth and yield parameters at different time intervals (15, 30, 45, 60, 75, 90 days after sowing (DAS) and a weedy check for comparison). The results revealed that, maximum data of pod length (10.39 cm), pod diameter (1.75 cm), number of pods (16.31 plant-1), pod weight (178.65 g plant-1), number of leaves (10.07 plant-1), plant height (53.21 cm), stem diameter (1.65 cm), chlorophyll content in leaf (51.0 µg cm-2) and pod yield (9.90 t ha-1) were founded for 30 DAS which was followed by 15 DAS of weeding. Furthermore, the minimum data of plant height (33.85 cm), number of leaves (6.88 plant-1), stem diameter (1.03 cm), chlorophyll content in leaf (37.11 µg cm-2), pods length (4.98 cm), pod diameter (1.06 cm) and pod yields (2.54 t ha-1) were recorded for weedy check. It was concluded from this study that the weeded at 30 DAS showed best results regarding okra crop vegetative growth and yield parameters as compared to other days after sowing and weedy check because that was the most critical period of weeds competition for resources. Therefore, it is recommended for the farming community to adopt 30 DAS weeding practice in okra fields for better vegetative growth, yield and economic return as well.
- Subjects
OKRA; AGRICULTURAL climatology; WEED competition; WEED populations; VEGETATIVE propagation
- Publication
Pakistan Journal of Weed Science Research, 2017, Vol 23, Issue 1, p91
- ISSN
1815-1094
- Publication type
Article