Valan kakri is an underexploited vegetable and has great potential for genetic improvement through systematic approach. In this study, variability parameters were evaluated in 30 genotypes of Valan kakri collected from different villages across Udaipur during September 2019 and morphological studies were done at Rajasthan College of Agriculture, Udaipur. The genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) were highest for fruit length (34.48%, 35.43%) followed by fruit weight (61.64 % and 62.04). Estimates for heritability (Broad sense) ranged from 69.70% for seed cavity breadth to 99.24% for acidity of fruit. Traits like fruit length, fruit weight, seed cavity length, acidity of fruit, ascorbic acid content had high GCV, PCV and heritability along with high genetic advance as percentage of mean. Therefore, selection can be effective for these traits in crop improvement programme.

To overcome the limitations of soil fertility and provide high crop output, soil fertility management, including the sensible use of mixes of organic and inorganic fertilizers, is a realistic approach. The strategy of integrated nutrient usage was used since there was a decrease in soil characteristics and crop productivity as a result of the overuse of chemical fertilizers. The present study was designed in 2019–2020 and 2020–2021 at the high-tech unit, Department of Horticulture, Udaipur to investigate the integrated use of FYM and inorganic fertilizers along with silicon on the development and output parameters of cauliflower (Brassica oleracea var. botrytis L.). The field experiment was carried out with fourteen treatments as a soil application under randomized block design. The results revealed that treatment T14 (50% recommended dose of nitrogen by FYM + 50% recommended dose of fertilizers + 100 kg Silicon/ha) showed maximum plant height at harvest (65.73 cm), number of leaves per plant (24.27), leaf area index (11.83), chlorophyll content at 50 days after transplanting (1.99 mg/g), stalk length (8.23 cm) and stem girth (7.41 cm), minimum number of days to curd initiation after transplanting (66.37), minimum number of days required for marketable curd maturity after transplanting (89.17), maximum plant weight (1154.74 g), diameter of curd (15.75 cm), curd yield (277.53 q/ha) and dry weight of curd (91.41 g) as compared to control. In the end, the results showed that the growth and yield of cauliflower were better when silicon, manure, and chemical fertilizers were used together.