Studies on the effect of manure and biofertilizers on seed production of carrot (Daucus carota var. atrorubens)
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Date
2021-07
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CCSHAU, Hisar
Abstract
Carrot (Daucus carota var. atrorubens) belonging to family Umbelliferae with chromosome
number 2n=18 is a popular cool season vegetable and is one of the important root vegetable crops. The
inflorescence, typical of the Umbelliferae, is a compound umbel. In India, root to seed is the standard
method used for the production of high quality seed as this method allows the selection of healthy and
true to type roots for the planting of stecklings. Organic seed production includes growing of seed
crops by a collection of guidelines that prohibit the use of synthetic products/ chemicals. The present
study was conducted at Seed Research Area of Department of Vegetable Science, Chaudhary Charan
Singh Haryana Agricultural University, Hisar during spring-summer season of 2018-19. The objectives
of the investigation were to study the effect of manure and biofertilizers on growth, seed yield and
quality parameters of carrot seed crop. The experiment involved fourteen treatments, viz., T1- Absolute
control, T2- RDF (N:P:K 80:40:40 kg/ha), T3- Farm yard manure 25t/ha, T4- Poultry manure 4t/ha,
T5- Vermicompost 8t/ha, T6- FYM 12.5t/ha+ PM 2t/ha, T7- FYM 12.5t/ha+ PM 2t/ha, T8- FYM
12.5t/ha+ PM 2t/ha+ VC 4t/ha, T9- FYM 12.5t/ha+ PM 2t/ha+ Azo+PSB, T10-FYM 12.5t/ha+
Azo+PSB, T11- FYM 12.5t/ha+ VC 4t/ha+ Azo+PSB, T12- VC 8t/ha+ Azo+PSB, T13- PM 4t/ha+
Azo+PSB and T14- FYM 12.5t/ha+ PM 2t/ha+ VC 4t/ha + Azo+PSB and was laid out in Randomized
Block Design with three replications.
Highest plant growth, seed yield and yield attributing characters viz., number of umblets per
umbel, number of seeds per umblets, number of seeds per umbel etc. and quality of seeds in terms of
test weight, germination %, vigour index-I and II and Accelerating ageing test of 48 hours (germination
%) during storage period of 3 and 6 months of carrot cv. Hisar Gairic was obtained with treatment T14
having combination of all the three manure and biofertilizers (FYM 12.5t/ha+ PM 2t/ha+ VC 4t/ha+
Azo+PSB), which was found at par with treatments T8, T9, T11 and T2. However, the B:C ratio was
obtained highest with the treatment T9.