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Evaluation and characterization of garlic (Allium sativum L.) genotypes

KrishiKosh

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Title Evaluation and characterization of garlic (Allium sativum L.) genotypes
 
Creator Prajapati, Satendra Kumar
 
Contributor Tiwari, Akhilesh
 
Subject fruits, cultivation, planting, yields, spacing, vegetables, polymers, mulches, diseases, harvesting
HORTICULTURE
 
Description Abstract


The present investigation entitled “Evaluation and characterization of garlic (Allium sativum L.) genotype” was carried out during Rabi season of 2013-14 at Horticulture complex, Department of Horticulture, JNKVV, Jabalpur (M.P.) with objectives to characterize the garlic genotypes, to estimate the genetic variability and heritability of garlic genotypes and to analyze correlation coefficients between yield and yield contributing characters.

The experiment was laid out in Randomized Complete Block Design (RCBD) with thirty genotypes and three replications. The plot size was kept 1m x 1m. The row to row distance was 15 cm and plant to plant distance was 10cm. Six genotypes were collected from Mandsaur, namely JAS 1 to JAS 6, five genotypes were collected from Neemach namely JAS 7 to JAS 11, five genotypes collected from Ratlam namely JAS 12 to JAS 16, seven genotypes collected from Betul namely JAS 17 to JAS 23, five genotypes collected from Chhindwara namely JAS 24 to 28 and other two genotypes JAS 29 and JAS 30 collected from Seoni districts of (M.P.). Various observations were recorded for characterization of garlic morphological traits under study. The genotypes JAS 28 was recorded maximum in characters like leaf length (36.33. cm), leaf width (1.74 cm), pseudostem diameter (0.84 cm), polar diameter (3.82 cm), equatorial diameter (4.16 cm), average weight of bulb (27 g), marketable yield (117 q/ha), total yield (118.80 q/ha), minimum physiological weight loss at
15 days (1.13 %) and 30 days after harvest (1.96 %) and low incidence of stemphylium bligh. However, the genotype JAS 16 was observed maximum in characters like plant height (62.20 cm), number of cloves per bulb (23.66), average weight of bulb (27 g), minimum thrips count per plant (16.73) and low incidence of stemphylium blight. Whereas the genotypes JAS 10 maximum in pseudostem length (8.93 cm) and JAS 19 maximum number of leaves plant (8.06) and JAS 8 maximum in average weight of 10 cloves (15.50 g).

The analysis of genetic parameters showed higher PCV than GCV for all the characters, physiological weight loss at 30 days after harvest, physiological weight loss at 15 days after harvest, number of cloves per bulb, pseudostem diameter and leaf width showed high PCV and GCV indicating greater diversity for these traits and their further improvement through selection. The value of heritability (broad sense) was observed to be higher for the characters viz., marketable yield, total yield, average weight of bulb, leaf length, average weight of 10 cloves and pseudostem length. The higher value of genetic advance as percent of mean was recorded for physiological weight loss at 15 days physiological weight loss at 30 days after harvesting.

High heritability coupled with high genetic advance as percent of mean recorded maximum in marketable yield, total yield, physiological weight loss at 15 days after

harvesting and physiological weight loss at 30 days after harvesting. High heritability and high genetic advance indicated that this character governed by additive gene action, therefore simple selection would be effective for improvement of this character. Positive correlation of marketable yield was observed with total yield (0.824), leaf length (0.634), leaf width (0.544), equatorial diameter of bulb (0.559), plant height (0.498) pseudostem diameter (0.476), polar diameter of bulb (0.460), average weight of bulb (0.459) and days to maturity (0.435). Thus the two or more characters can be studied together to find out the linkage and inheritance for further evaluation of garlic improvement.
 
Date 2016-06-23T14:46:29Z
2016-06-23T14:46:29Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/67868
 
Language en
 
Format application/pdf
 
Publisher JNKVV