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The effect of microclimate inside low tunnels on off-season production of strawberry (Fragaria × ananassa Duch.)

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Title The effect of microclimate inside low tunnels on off-season production of strawberry (Fragaria × ananassa Duch.)
Not Available
 
Creator Akath Singha
Agreesia Syndorb
Bidyut C. Deka
R.K. Singh
R.K. Patel
 
Subject Fragaria × ananassa Early cropping Extended cropping Yield component analysis Quality component analysis Planting time
 
Description Not Available
A field trial was conducted at Horticultural Research Farm, ICAR Research complex for North Eastern Hill
Region Umiam, Meghalaya, India to assess the influence of microclimate changes caused by low tunnels
and effect of planting time on early production and extension of cropping season of strawberry. The
plantings were done at day 10 in July, August, September, October, and November under low tunnels
skinned with 75% and 50% shade net, UVS polythene (200 m) and in open field. Irrespective of growing
period, the rhizosphere temperature at 20 cm depth in polytunnel was higher by 2.64 ◦C, 2.23 ◦C and
1.82 ◦C compared to 75% shade, 50% shade and open field, respectively. During December–January when
temperature fell to around 7.0
±
2.0 ◦C, low tunnel of UVS polythene maintained a temperature range
close to 15.0
±
2.0 ◦C. Similarly during summer months, air temperature was 3.44–5.21◦ C and 3.6–6.2 ◦C
lower, respectively in low tunnels of 75% and 50% shade than in the open field. Whereas, on an average
2–6% higher relative humidity was observed during the whole growing period inside different low tunnel
structures compared to the open field. Strawberry was produced 30–35 days earlier than normal in low
tunnels of 50% shade planted in July or August. The period of fruit availability was extended to 47 days
from normal period under UVS polythene cover when planted in November. Highest yield with firm fruits,
higher ascorbic acid, anthocyanin and -carotene were obtained from the plants planted in November
under UVS polythene which was on a par with the plants planted in July and August under 50% shade
Not Available
 
Date 2019-05-17T06:05:02Z
2019-05-17T06:05:02Z
2012-06-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/19667
 
Language English
 
Relation Not Available;
 
Publisher Not Available