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University of Agricultural Sciences, Dharwad

The University of Agricultural Sciences, Dharwad was established on October 1, 1986. The University has 5 Colleges, 27 Research Stations, 6 Agriculture Extension Education Centers, 6 Krishi Vigyan Kendras and ATIC. The University has its jurisdiction over 7 districts namely Bagalkot, Belgaum, Bijapur, Dharwad, Gadag, Haveri, and Uttar Kannada in northern Karnataka. Greater diversity exists in soil types, climate, topography cropping and farming situations. The jurisdiction includes dry-farming to heavy rainfall and irrigated area. Important crops of the region include sorghum, cotton, rice, pulses, chilli, sugarcane, groundnut, sunflower, wheat, safflower etc. The region is also known for many horticultural crops. Considerable progress has been registered in the field of education, research and extension from this University.

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Thesis Type: M.Sc × Author: Akkannavar, Balachandra R ×
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    ThesisItemOpen Access
    INFLUENCE OF NITROGEN, PHOSPHORUS, SPACING AND GROWTH RETARDANTS ON SEED YIELD AND QUALITY OF AGERATUM [Ageratum houstonianum)
    (University of Agricultural Science, Dharwad, 2001) Akkannavar, Balachandra R; Deshpande, V K
    "A STUDY ON THE EFFECT OF NITROGEN, PHOSPHOROUS, SPACING AND GROWTH RETARDANT ON SEED YIELD AND QUALITY OF AGERATUM WAS CONDUCTED AT MAIN RESEARCH STATION, UNIVERSIT}' OF AGRICULTURAL SCIENCES, DHARWAD DURING SUMMER 2001. THE EXPERIMENT-I CONSISTED OF TWELVE TREATMENTS COMPRISING FOUR’ LEVELS OF FERTILIZERS VIZ., 75:60:60 (F1), 75:75:60 (F1), 100:60:60 (F3) AND 100:75:60 (F4) KG NPK PER HA AND THREE SPACING 30X30 CM (S1), 30X45 CM (S2) AND 45X45 CM (S3). IT WAS LAID OUT IN A FACTORIAL RANDOMIZED BLOCK DESIGN WITH THREE REPLICATIONS. THE EXPERIMENT-II HAS CONSISTED OF TEN TREATMENTS VIZ., MEPIQUAT CHLORIDE (MC) @ 250 AND 500 PPM, MALEIC H\XLRAZIDE (MH) 0- 250 PPM AND 500 PPM, TIBA I5 100 AND 200 PPM, CCC (A 500 AND 1000 PPM, WATER SPRAY AND CONTROL. THE EXPERIMENT WAS LAID OUT IN A RANDOMIZED BLOCK DESIGN WITH THREE REPLICATIONS. THE RESULTS INDICATED THAT SIGNIFICANTLY HIGHER PLANT GROWTH, CHLOROPHYLL CONTENT, PLANT DRY MATTER PRODUCTION, AND HIGHER YIELD COMPONENTS LIKE NUMBER OF CAPITULUM PER PLANT AND HIGHER SEED YIELD PER PLANT AND HIGHER SEED QUALITY COMPONENTS VIZ., GERMINATION PERCENTAGE (65.7%), SPEED OF GERMINATION, VIGOUR INDEX AND SEEDLING DN WEIGHT WERE RECORDED AT 45X45 CM (S3) SPACING WITH THE APPLICATION OF 100:75:60 KG NPK PER HA. WHEREAS THE APPLICATION OF 100:75:60 KG \PK/HA AT LOWER SPACING S I (30X30 CM) RECORDED HIGHER SEED YIELD PER HA (161.4 KG) AND NET RETURNS. AMONG GROWTH RETARDANT SPRAYING OF MH (A 500 PPM RECORDED HIGHER GROWTH COMPONENTS VIZ., NUMBER OF BRANCHES AND LEAVES PER PLANT, CHLOROPHYLL CONTENT, DRY MATTER PRODUCTION AND HIGHER YIELD COMPONENTS VIZ., NUMBER OF CAPITULUM, SEED WEIGHT PER CAPITULUM, SEED YIELD PER HA (163.2 KG/HA) AND HIGHER SEED QUALITY COMPONENTS VIZ., GERMINATION PERCENTAGE (67.0%), SPEED OF GERMINATION, SEEDLING VIGOUR INDEX AND DRY WEIGHT AND HIGHER NET RETURNS. NEXT BEST TREATMENTS WERE MH 250 PPM AND TIBA 200 PPM."