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20171
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Subject: Fruit Science × Author: Gaurav Kant × End date: 2019 × Start date: 2017 × Type: Thesis ×
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    ThesisItemOpen Access
    Studies on the effect of chemicals on buddability and budding success in rough lemon (Citrus jambhiri Lush) seedling
    (CCSHAU, 2017) Gaurav Kant; Dalal, R.P.S.
    The present investigation entitled “Studies on the effect of chemicals on buddability and budding success in rough lemon (Citrus jambhiri Lush) seedling” was conducted in Department of Horticulture, CCS Haryana Agricultural University, Hisar during 2016-17. The experiment was carried out in Randomized Block Design (RBD) with thirteen treatments and three replication comprising foliar application of T1 (GA3 50 ppm + Urea 0.5%), T2 (GA3 50 ppm + Urea 1%), T3 (GA3 100 ppm + Urea 0.5%), T4 (GA3 100 ppm + Urea 1 %), T5 (NAA 50 ppm + Urea 0.5%), T6 (NAA 50 ppm + Urea 1%), T7 (NAA 100 ppm + Urea 0.5%), T8 (NAA 100 ppm + Urea 1%), T9 (ABA 50 ppm + Urea 0.5%), T10 (ABA 50 ppm + Urea 1% ), T11 (ABA 100 ppm + Urea 0.5%), T12 (ABA 100 ppm + Urea 1%) and T13 (Control, Water spray) twice after 30 and 60 days after transplanting on the same seedlings. Growth parameters like seedling height (73.52 cm), number of leaves (82.19), fresh weight (104.91 g), dry weight (33.18 g), leaf area (965,70 cm2), shoot dry weight (25.53 g), root fresh weight (16.83 g), root dry weight (7.65 g), root volume (14.57 ml) were found maximum in treatment T4 (GA3 100 ppm + Urea 1%) whereas, maximum number of secondary (43.00) and tertiary roots (87.67) was observed in treatment T8 (NAA 100 ppm + Urea 1%), maximum root diameter (12.93 mm) was observed in treatment T11 (ABA 100 ppm + Urea 0.5%). At 180 days after transplanting, maximum number of buddable seedling (95.24 %) was recorded in T11 (ABA 100ppm + Urea 0.5%) and T12 (ABA 100 ppm + Urea 1%) closely followed by (90.48 %) in T9 (ABA 50 ppm + Urea 0.5%) and T10 (ABA 50 ppm + Urea 1%). Maximum budding success (75.24 %) was found in the treatment T4 (GA3100 ppm +Urea 1%) closely followed by (67.50 %) in T12 (ABA 100ppm + Urea 1%). Maximum nitrogen (1.12 %) and potassium content (1.11 %) was estimated in the treatment T4 (GA3100 ppm + Urea 1%). On the basis of the findings of the present study it is clear that the growth of rough lemon seedlings was accelerated by the application of GA3 (100 ppm + urea 1%) and maximum and earlier buddable seedlings (95.24 %) was obtained in treatment T11 (ABA 100 ppm + Urea 0.5%).