Open AccessTolerance response of ten chili genotypes under the limited watering condition
Author(s) -
Redy Gaswanto,
N Gunaeni
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/807/3/032028
Subject(s) - germplasm , randomized block design , horticulture , biology , population , completely randomized design , genotype , chlorophyll , agronomy , medicine , biochemistry , environmental health , gene
Ten chili genotypes of germplasm collection had been evaluated under limited watering conditions. The objective of the research was to know the mechanism response of each treated genotype under limited watering conditions. The research was conducted from February to December 2017 at Indonesia Vegetables Research Institute, Lembang (1,250 m sal). A randomized complete design (RCD) was used as a research design with three replications. There were 20 treatments which combination between 10 chili genotypes with limited (interval per six days) or unlimited watering (per daily). The seedlings were planted in plastic pots with a mixture of media soil:sand = 1:2, then be applied treatments. The population number of each genotype per treatment was 15 plants/replication. The results showed that AN and 238 were a better tolerance level than other genotypes under-treated limited watering conditions by some mechanisms, i.e the smallest change in total chlorophyll, but increase in proline content, and reduction in leaf area index and stomata number. Moreover, genotype 238 also developed effectivity water absorption by root elongation at untreated stress conditions. Hence the results could determine a good strategy for each genotype to be improved as a new tolerant variety in water deficiency conditions.