STUDIES ON WATER RELATIONS AND DEFICIT IRRIGATION IN KIWIFRUIT (Actinidia deliciosa Chev.).
KrishiKosh
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Title |
STUDIES ON WATER RELATIONS AND DEFICIT IRRIGATION IN KIWIFRUIT (Actinidia deliciosa Chev.).
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Creator |
PREET PRATIMA
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Contributor |
SHARMA, N.
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Subject |
irrigation, fruits, cultivation, diseases, planting, developmental stages, yields, land resources, acidity, amino acids
kiwifruit(Actinidia delicioca Chev.)”,Deficit Irrigations |
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Description |
ABSTRACT The present investigation entitled “Studies on water relations and deficit irrigations in kiwifruit(Actinidia delicioca Chev.)” was undertaken in the Department of Fruit Science, Dr. Y. S. Parmar University of Horticulture and Forestry, Solan, HP,India during the years 2011 and 2012. The research work was divided into two experiments with the objectives of screening of kiwifruit cultivar(s) for water deficit conditions and to study the effect of in situ moisture conservation and deficit irrigation (DI) on growth, water relations and yields in kiwifruit. In experiment-I, five cultivars viz., Allison, Hayward, Abbott, Monty and Bruno were subjected to two irrigation levels viz., irrigation at 80 per cent and 60 per cent FC with four replications, whereas, in experiment II, seven treatments viz., irrigation at 80 per cent (T1), 60 per cent (T2) and 40 per cent FC (T3), T2 plus grass mulch (T4) or black polythene (T5) and T3 plus grass mulch (T6) or black polythene (T7) were applied from March to October with three replications in RBD. The cultivar Bruno showed less reduction in growth, leaf water potential, photosynthetic activity, nutrient status and more accumulation of proline, free amino acids and ABA in leaves which enable it to perform better under DI, whereas, “Hayward” was found to be most sensitive to water stress. Shoot growth, leaf area, bloom intensity, fruit set, total and “A” and “B” grade fruit yield, leaf water potential, photosynthetic rate, transpiration rate, RWC, cytokinin and leaf nutrient contents decreased whereas, stomatal resistance, leaf proline, free amino acid and ABA contents increased under DI. However, the treatment T4 and T5 maintained soil moisture level nearly to the level of T1 and mitigated these water stress induced responses, however, later was better in this respect. Use of mulches also reduced the high irrigation requirement of kiwifruit over the growing period from sixteen to eight. |
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Date |
2016-06-01T12:57:23Z
2016-06-01T12:57:23Z 2014 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/66539
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Language |
en
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Format |
application/pdf
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