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Growth and yield studies of potato development in a semi-arid region. 2. Effect of water stress and amounts of nitrogen top dressing on growth of several cultivars
Year:
1985
Source of publication :
Potato Research
Authors :
Shimshi, Daniel
;
.
Susnoschi, Marcel Micha
;
.
Volume :
28
Co-Authors:
Susnoschi, M., Dept. of Vegetable Crops, Agricultural Research Organization, Gilat Experiment Station Negev, 85-280, Israel
Shimshi, D., Dept. of Experimental Physiology and Irrigation, Agricultural Research Organization, Gilat Experiment Station Negev, 85-280, Israel
Facilitators :
From page:
161
To page:
176
(
Total pages:
16
)
Abstract:
Five potato cultivars were subjected to water deficits as well as to excess water and to corresponding amounts of nitrogen top dressing (N.t.) applied in the irrigation water. The rates of growth in response to water-N. t. were highest for all cultivars when Kp=1.06 (pan evaporation coefficient) and N.t=173 kg/ha. In the drier treatments (0.87>Kp>0.14 and 127>N.t.>12 kg/ha) and in the wetter treatment (Kp=1.27; N.t.=201 kg/ha), the growth rates decreased. The cultivars differed in their haulm size, especially at Kp=1.0, N.t.=173 kg/ha. At 70 days after planting cv. Cardinal had about half the haulm weight of cv. Désirée. Nevertheless, both cultivars exhibited similar bulking rates. On the other hand, cv. Spunta, which had high bulking rates at the earlier stage of growth, had a marked advantage in yield production in the drier treatments (Kp=0.29-0.14; N.t.=44-12 kg/ha). The maximum leaf area indices (LAI) were obtained at Kp=1.06, N.t.=173 kg/ha and were similar for all cultivars. LAI and leaf area duration (LAD) decreased with increasing water stress. In Cardinal, Désirée, Spunta and cv. Up-to-Date there was a common linear function relating to tuber weigth and to LAD; in cv. Alpha, this function had lower values of tuber weight. © 1985 Kluwer Academic Publishers.
Note:
Related Files :
irrigation-nitrogen relations
potato growth analysis
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More details
DOI :
10.1007/BF02357442
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
24597
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:08
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Scientific Publication
Growth and yield studies of potato development in a semi-arid region. 2. Effect of water stress and amounts of nitrogen top dressing on growth of several cultivars
28
Susnoschi, M., Dept. of Vegetable Crops, Agricultural Research Organization, Gilat Experiment Station Negev, 85-280, Israel
Shimshi, D., Dept. of Experimental Physiology and Irrigation, Agricultural Research Organization, Gilat Experiment Station Negev, 85-280, Israel
Growth and yield studies of potato development in a semi-arid region. 2. Effect of water stress and amounts of nitrogen top dressing on growth of several cultivars
Five potato cultivars were subjected to water deficits as well as to excess water and to corresponding amounts of nitrogen top dressing (N.t.) applied in the irrigation water. The rates of growth in response to water-N. t. were highest for all cultivars when Kp=1.06 (pan evaporation coefficient) and N.t=173 kg/ha. In the drier treatments (0.87>Kp>0.14 and 127>N.t.>12 kg/ha) and in the wetter treatment (Kp=1.27; N.t.=201 kg/ha), the growth rates decreased. The cultivars differed in their haulm size, especially at Kp=1.0, N.t.=173 kg/ha. At 70 days after planting cv. Cardinal had about half the haulm weight of cv. Désirée. Nevertheless, both cultivars exhibited similar bulking rates. On the other hand, cv. Spunta, which had high bulking rates at the earlier stage of growth, had a marked advantage in yield production in the drier treatments (Kp=0.29-0.14; N.t.=44-12 kg/ha). The maximum leaf area indices (LAI) were obtained at Kp=1.06, N.t.=173 kg/ha and were similar for all cultivars. LAI and leaf area duration (LAD) decreased with increasing water stress. In Cardinal, Désirée, Spunta and cv. Up-to-Date there was a common linear function relating to tuber weigth and to LAD; in cv. Alpha, this function had lower values of tuber weight. © 1985 Kluwer Academic Publishers.
Scientific Publication
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