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Morpho-physiological and biochemical changes during seed development in cucumber (Cucumis sativus)

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Title Morpho-physiological and biochemical changes during seed development in cucumber (Cucumis sativus)
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Creator NAKUL GUPTA, S K JAIN, B S TOMAR, ANJALI ANAND, JOGENDRA SINGH and A K SINGH
 
Subject Antioxidants and reserve accumulation, Cucumber, Seed quality, ROS, Seed development
 
Description Not Available
Morpho-physiological and biochemical changes in developing cucumber (Cucumis sativus L) seeds were monitored
under both open field (E1) and protected environments (E2) during 2019 at ICAR-IARI, New Delhi. Fruits developed
from hand pollinated flowers, in Pusa Barkha and Pusa Uday varieties were harvested at five-day intervals. The
environment influenced both days to maturity and development of fruit and/or seed. Irrespective of varieties, seasons
and environments, seed moisture decreased (over three folds); seed fresh and dry weights increased (one & half and
three folds, respectively). Electrical conductance (EC), total soluble sugars (TSS) and total soluble proteins (TSP),
from seed leachates, followed a bell-shape pattern. The reserve accumulation (TSS, starch, TSP and oil) registered
an increase both in seed fresh and dry weights; the seed filling continued up to maturity. The ROS activity (H2O2&
O2-) initially increased then decreased significantly up to maturity. A significant decrease in antioxidant enzymes
indicated seed desiccation resistance. Seeds attained maximum germination (70.0 &73.2%), seed vigour-I (1114.3
&1323.1), seed vigour-II (8.61 & 9.55) during 40 DFP&50 DFP; and seed dry weights (19.9 & 20.15 mg/seed) under
E1&E2, respectively.
Not Available
 
Date 2021-07-23T05:41:04Z
2021-07-23T05:41:04Z
2021-03-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/49445
 
Language English
 
Relation Not Available;
 
Publisher Not Available