TY - JOUR
T1 - Effects of day length on flowering and yield production of Salicornia and Sarcocornia species
AU - Ventura, Yvonne
AU - Wuddineh, Wegi A.
AU - Shpigel, Muki
AU - Samocha, Tzachi M.
AU - Klim, Brandon C.
AU - Cohen, Shabtai
AU - Shemer, Zion
AU - Santos, Rui
AU - Sagi, Moshe
N1 - Funding Information:
This research was supported in part by the Chief Scientist, Ministry of Agriculture and Rural Development , Israel, Grant No. 857-0498-06 and in part by Research Grant Award No. TB-8047-08 from TDA-TIE/BARD , the Texas Department of Agriculture, Texas Israel Exchange and the United States-Israel Binational Agricultural Research and Development Fund (BARD).
PY - 2011/9/30
Y1 - 2011/9/30
N2 - Salicornia is a new vegetable crop that can be irrigated with highly saline water, even at salt concentrations equivalent to full-strength seawater. During leafy vegetable cultivation, the onset of the reproductive phase is an undesired phenomenon that reduces yield and quality and prevents year-round cultivation. Knowledge about the regulation of floral induction in the members of the tribe Salicornieae, however, is lacking. To establish year-round cultivation, we studied the flower induction of five Salicornia and two Sarcocornia varieties. Plants were grown under two day lengths, 13.5h and 18h, and harvested by a repetitive harvest regime. A 13.5-h day length prevented flower induction in the Israeli Salicornia varieties, but a longer day length was required to prevent flower induction in two species originating from more northern latitudes. The onset of the reproductive phase under suboptimal short day length conditions severely reduced vegetative growth and yields in Salicornia. In Sarcocornia, the repetitive harvest regime prevented flowering, making it a promising candidate for year-round cultivation. Irrigating the plants with full-strength seawater (electrical conductivity 48dSm-1) vs. water with moderate salinity (electrical conductivity 10dSm-1) did not change the general flowering pattern of the studied Salicornieae members.
AB - Salicornia is a new vegetable crop that can be irrigated with highly saline water, even at salt concentrations equivalent to full-strength seawater. During leafy vegetable cultivation, the onset of the reproductive phase is an undesired phenomenon that reduces yield and quality and prevents year-round cultivation. Knowledge about the regulation of floral induction in the members of the tribe Salicornieae, however, is lacking. To establish year-round cultivation, we studied the flower induction of five Salicornia and two Sarcocornia varieties. Plants were grown under two day lengths, 13.5h and 18h, and harvested by a repetitive harvest regime. A 13.5-h day length prevented flower induction in the Israeli Salicornia varieties, but a longer day length was required to prevent flower induction in two species originating from more northern latitudes. The onset of the reproductive phase under suboptimal short day length conditions severely reduced vegetative growth and yields in Salicornia. In Sarcocornia, the repetitive harvest regime prevented flowering, making it a promising candidate for year-round cultivation. Irrigating the plants with full-strength seawater (electrical conductivity 48dSm-1) vs. water with moderate salinity (electrical conductivity 10dSm-1) did not change the general flowering pattern of the studied Salicornieae members.
KW - Biomass yield
KW - Halophytes
KW - Repetitive harvest regime
KW - Seawater irrigation
KW - Vegetable crops
UR - http://www.scopus.com/inward/record.url?scp=80052931341&partnerID=8YFLogxK
U2 - 10.1016/j.scienta.2011.08.008
DO - 10.1016/j.scienta.2011.08.008
M3 - Article
AN - SCOPUS:80052931341
VL - 130
SP - 510
EP - 516
JO - Scientia Horticulturae
JF - Scientia Horticulturae
SN - 0304-4238
IS - 3
ER -