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Effect of water deficit on relationship between yield and physiological attributes of banana cultivars and hybrids

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Title Effect of water deficit on relationship between yield and physiological attributes of banana cultivars and hybrids
 
Creator Krishna Surendar K, D. Durga Devi, Ravi, I., P. Jeyakumar, K. Velayudham
 
Subject Water deficit, relative water content (RWC), chlorophyll stability index (CSI), membrane stability index (MSI), yield, banana
 
Description This study examined the relationship between the yield reduction by chlorophyll stability index (CSI),
membrane stability index (MSI), and relative water content (RWC). The field experiment was conducted
at National Research Centre for Banana to screen the banana cultivars and hybrids for water deficit
tolerance and to elucidate information on the growth attributes mechanism of banana cultivars and hybrids.
Water stress was imposed at different critical growth stages viz., 3rd, 5th, 7th, and 9th months after planting.
The stress was given by scheduling irrigation at the 50% available soil moisture (ASM) during critical
stages. The soil moisture content was analyzed by using pressure plate membrane apparatus. In
control plots, the irrigation was given at the ASM of 80% with the soil water potential of about -6 bars. In
stressed plots, the irrigation was given at 50% ASM with a soil water potential of -14 bars. In stressed
plots, 50% ASM was reached around 30 days. The present study was conducted with twelve cultivars
and hybrids with three replications. The data were analyzed by using a split-plot design. The results
revealed that the cultivars of Karpuravalli, Karpuravalli x Pisang Jajee, Saba, and Sannachenkathali
recorded significantly higher yields (67.3, 52.4, 55.8, and 41.3 t ha-1) and the magnitude of yield was
decreased by 12% than the cultivars and hybrids of Matti, Pisang Jajee x Matti, Matti x Anaikomban and
Anaikomban x Pisang Jajee (14.9, 11.1, 10.3 and 10.6 t/ha). Similarly, Karpuravalli, Karpuravalli x Pisang
Jajee, Saba, and Sannachenkathali recorded significantly high relative water content, chlorophyll
stability index, and membrane stability index with lesser reduction percent shown than the
cultivars and hybrids of Matti, Pisang Jajee x Matti, Matti x Anaikomban and Anaikomban x Pisang
Jajee.
ICAR, FAO
 
Date 2022-11-14T11:24:28Z
2022-11-14T11:24:28Z
2013-08-01
 
Type Article
 
Identifier Krishna Surendar K, D. Durga Devi, Ravi, I., P. Jeyakumar, K. Velayudham (2013). Effect of water deficit on relationship between yield and physiological attributes of banana cultivars and hybrids. African Journal of Plant Science 7(8): 374-383.
1996-0824
http://krishi.icar.gov.in/jspui/handle/123456789/75106
 
Language English
 
Publisher Academic Journals