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• Effect of basal and foliar application of boron and zinc on yield attributes in Solanum melongena L.

  97-99.

  S. V. S. Chauhan

  A. Rana

  S. Chauhan

  Views:

  124

  Field experiments were conducted during 1999-2000 and 2000-2001 to study the effect of basal application (BA) of zinc sulphate (5 and 10 mg kg^-i soil) or boric acid (1 and 2 mg kg^-1 soil) alone or foliar applications (FA) of water or 1% ZnSO₄ or 1% H₃ B0₃ or the combinations of both BA and FA of either ZnSO₄ or H₃ B0₃ on yield attributes (number of flowers and fruits/ plant, fruit weight, size and total yield). On the basis of the two-year data, it was found that all the treatments of BA as well as FA enhanced yield attributes but the combination of BA of 10 mg kg^--1 soil ZnSO₄ and FA of 1% H₃ B0₃ gave highest yield as compared to other treatments and control plants.

• Effect of pre-harvest spray of calcium nitrate, boric acid and zinc sulphate on yield and quality of Nagpur mandarin (Citrus reticulata Blanco)

  23-28.

  M. K. Meena

  M. C. Jain

  J. Singh

  M. Sharma

  B. Shing

  I. B. Maurya

  Views:

  255

  An investigation was conducted on uniform, healthy, eight year old trees of Nagpur mandarin (citrus reticulata Blanco) at Fruit Research Farm, Department of Fruit Science at College of Horticulture and Forestry, Jhalawar during 16 September, 2014 to 1 March, 2015. Various doses of calcium nitrate (1.0%, 2.0% and 3.0 %), boric acid (0.2 %, 0.4 % and 0.6 %) and zinc sulphate (0.2 %, 0.4 % and 0.6 %) were sprayed before harvesting and compared with untreated ones. The results obtained indicated that the trees sprayed with T27 i.e. (calcium nitrate 3.0 % + boric acid 0.6 % + zinc sulphate 0.6 %) showed maximum increase diameter of fruit, fruit weight, fruit volume, number of fruits per plant, fruit yield per plant, estimated yield per hectare, reducing sugar, non reducing sugar, total sugar, juice per cent, sensory score and reduced peel thickness over control. Further, T24 treatment combination (calcium nitrate 3.0 % + boric acid 0.4 % + zinc sulphate 0.6 %) has also significantly increased number of segments per fruit, TSS, TSS: Acid ratio, ascorbic acid content, and reduced number of seeds per fruit and acidity percent of fruits.