INFLUENCE OF NITROGEN, PHOSPHORUS, SPACING AND GROWTH RETARDANTS ON SEED YIELD AND QUALITY OF AGERATUM [Ageratum houstonianum)
Loading...
Date
2001
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Agricultural Science, Dharwad
Abstract
"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."
Description
Keywords
null
Citation
No. of references 77