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Titolo:
EFFECTS OF CLIMATE ON DIFFERENT POTATO GENOTYPES .2. DRY-MATTER ALLOCATION AND DURATION OF THE GROWTH-CYCLE
Autore:
KOOMAN PL; FAHEM M; TEGERA P; HAVERKORT AJ;
Indirizzi:
DLO,RES INST AGROBIOL & SOIL FERTIL,POB 14 NL-6700 AA WAGENINGEN NETHERLANDS AGR UNIV WAGENINGEN,DEPT THEORET PROD ECOL NL-6708 PD WAGENINGEN NETHERLANDS CTR PERFECTIONNEMENT & RECYCLAGE AGR SAIDA 2031 TUNISIA INST SCI AGRON RWANDA,PROGRAMME NATL AMELIORAT POMME TERRE RUHENGERI RWANDA
Titolo Testata:
European journal of agronomy
fascicolo: 3-4, volume: 5, anno: 1996,
pagine: 207 - 217
SICI:
1161-0301(1996)5:3-4<207:EOCODP>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLANUM-TUBEROSUM-L; HIGH-TEMPERATURES; CROP GROWTH; VEGETABLE CROPS; PRODUCTIVITY; TUBERIZATION; SIMULATION; SYSTEMS; REGION; DATES;
Keywords:
TEMPERATURE; DAYLENGTH; GROWTH DURATION; DRY MATTER ALLOCATION; GROWTH PHASE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
35
Recensione:
Indirizzi per estratti:
Citazione:
P.L. Kooman et al., "EFFECTS OF CLIMATE ON DIFFERENT POTATO GENOTYPES .2. DRY-MATTER ALLOCATION AND DURATION OF THE GROWTH-CYCLE", European journal of agronomy, 5(3-4), 1996, pp. 207-217

Abstract

The total growth and tuber dry matter production of a potato crop aredetermined mainly by the duration of its growth cycle. This in turn depends on climate, cultivar and crop management. The influence of climate factors defining crop growth and its timing were analysed by dividing the growth cycle into three phases and relating the duration of these phases to temperature, daylength and radiation. The variation in the length of all three phases contributed to the variation in the duration of the growth cycle and thus to the variation in tuber dry matterproduction. The variation in the length of the first phase (between emergence and tuber initiation) was best explained by the meteorological variables observed. Both higher temperatures and shorter daylengths hastened development in this phase. The magnitude of their effects depended on cultivar. In the second phase, from tuber initiation to end of leaf growth, temperature and daylength had similar effects but they were less clear and the variation in duration of phase 2 could not be explained as well as variation in the duration of phase 1. The last phase, from the end of leaf growth to the end of crop growth, was shortened by high temperatures and high radiation. A small part of the variation in the duration of this phase was explained by these variables, At this level of crop analysis, the effect of climate on crop development was explained best for the first phase, which is the most importantone in explaining the variation in ground cover duration and tuber dry matter production, Quantitative understanding of the processes involved is required to be able to explain the effect of climate during thevarious phases of the growth cycle.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:12:38