INFLUENCE OF INTEGRATED NUTRIENT MANAGEMENT ON FLOWER AND SEED YIELD OF AFRICAN MARIGOLD (Tagetes erecta L.) CV. ‘PUSA NARANGI GAINDA’ DURING DIFFERENT SEASONS OF YEAR UNDER MID-HILLS OF HIMACHAL PRADESH
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Date
2019-05
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UHF,NAUNI
Abstract
ABSTRACT
The investigation entitled, “Influence of integrated nutrient management on flower and seed
yield of African marigold (Tagetes erecta L.) cv. ‘Pusa Narangi Gainda’ during different seasons of
year under mid-hills of Himachal Pradesh” was carried out at the Experimental Farm and Laboratory of
Department of Floriculture and Landscape Architecture, Dr. Y.S. Parmar University of Horticulture and
Forestry, Nauni- Solan in the years 2016 to 2018. During the present studies on INM and seasons
experiment was laid out in Randomized Block Design with 10 treatments and replicated thrice. It was
observed that T4 (Azotobacter + PSB + 70% RDF) improved most of the economical parameters viz.
plant height (72.10 cm), plant spread (41.44 cm), leaf area (76.34 cm2); earliest bud formation (53.11
days); first flower opening (65.79 days), number of flowers per plant (39.85), flower yield per plant
(210.29 g), flower yield per plot (1834 .09 g), flowering duration (47.57 days); seed yield per plant
(10.86 g) and seed yield per plot (97.70 g) in African marigold. Flower diameter (5.75 cm), individual
flower weight (6.11 g), number of seeds per head (186.54), weight of seeds per head (0.53 g) and 1000
seed weight (3.37 g) were best with T3(Azotobacter + PSB + 80% RDF). Maximum plant height (71.53
cm) spread (42.94 cm), leaf area (80.12 cm2), number of flowers per plant (39.15), flower yield per
plant (187.15 g), flower yield per plot (1684.50 g) and floweringduration (45.97 days) were observed in
summer season planting, however, earlier days for bud formation (52.17 days); first flower opening
(66.12 days), flower diameter (5.30cm), individual flower weight (5.40g), number of seeds per head
(229.57)) seed yield per plant (12.71 g), seed yield per plot (114.27g), weight of seeds per head (0.63 g)
and 1000 seed weight (3.06 g) were recorded to be maximumduring rainy season planting. Further post
harvest studies in both storage conditions and season 50 ppm BA improved appearance (3.38), flower
size (4.20 cm) shelf life (12.03 days) and minimum percent weight loss in flowers (19.10%) under cold
storage condition (40C). Cellophane paper registered best results for appearance (3.91), flower size
(4.61 cm), shelf life (16.67 days ) and minimum percent weight loss in flowers (13.03 %) when flowers
stored under cold storage condition(40C).
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