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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.).
 
Creator PREET PRATIMA
 
Contributor SHARMA, N.
 
Subject irrigation, fruits, cultivation, diseases, planting, developmental stages, yields, land resources, acidity, amino acids
kiwifruit(Actinidia delicioca Chev.)”,Deficit Irrigations
 
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.
 
Date 2016-06-01T12:57:23Z
2016-06-01T12:57:23Z
2014
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66539
 
Language en
 
Format application/pdf