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20171
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Subject: Floriculture and Landscaping × Author: Lakhbir Singh × End date: 2017 × Start date: 2017 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Integrated weed management of rose (Rosa hybrida var. Konfetti)
    (Punjab Agricultural University, Ludhiana, 2017) Lakhbir Singh; Dubey, R.K.
    The present study “Integrated weed management of rose (Rosa hybrida var. Konfetti)” was carried out at Floriculture Department Farm, Punjab Agricultural University, Ludhiana, during 2016-17 to study the effect of pre-emergence herbicides and different mulching materials on weed population, vegetative and floral parameters of Rosa hybrida var. Konfetti by using the following treatments, Black polythene mulch (200 μ), Paddy straw mulch (4.5 kg/m2), Pendimethalin 1.5 kg/ha, Pendimethalin 1.0 kg/ha, Pendimethalin 1.0 kg/ha + Paddy straw mulch (4.5 kg/m2), Hand weeding (Monthly interval) and Weedy check. Each treatment contained fifteen plants replicated thrice under the Randomized Block Design. The result of experiment showed that Black polythene mulch (200 μ) was found to be the very effective weed control method for controlling weed population. During both the seasons i.e. summer and winter season, the maximum plant height (64.00 cm and 52.35 cm), plant spread (50.03 cm and 45.67 cm), number of branches per plant (8.3 and 7.9), number of flowering buds (9.53 and 11.40), flower diameter (4.08 cm and 6.94 cm), flowering stalk length (11.36 cm and 14.15 cm) was observed under black polythene mulch (200 μ) treatment followed by the Hand weeding (Monthly interval) treatment in both seasons i.e. summer and winter season, respectively. The minimum days taken to flowering (37.71 days) and longer flowering duration (17.97 days) was also observed under black polythene mulch (200 μ) treatment. The minimum value of all the observations recorded was found to be in the weedy check. The highest average minimum and maximum monthly soil temperature were found under the black polythene mulch (200 μ) during both the seasons. Thus the present investigation revealed that among all the mulch materials used, black polythene mulch (200 μ) was found more effective in improving soil hydrothermal properties, weed suppression, growth and flowering of Rosa hybrida var. Konfetti.