TY - JOUR
T1 - Interconnection of seasonal temperature, vascular traits, leaf anatomy and hydraulic performance in cut Dodonaea 'Dana' branches
AU - Shtein, Ilana
AU - Meir, Shimon
AU - Riov, Joseph
AU - Philosoph-Hadas, Sonia
PY - 2011/8
Y1 - 2011/8
N2 - Dodonaea 'Dana' is an Israeli hybrid with purple tinted leaves, cultivated for cut foliage branches. Cut Dodonaea branches showed strong seasonal variations in longevity, wilting after one week in winter, while displaying a vase life of three weeks in summer. We examined the relationship between functional anatomy, including vessel, stomata and trichome densities, vessel member length and leaf thickness, and water status of cut branches during vase life over two consecutive seasons, in relation to the average monthly day temperature. All the vascular and leaf anatomy traits examined were significantly correlated with seasonal average monthly day temperature. On day one of vase life the branch water status was positively correlated with vessel, stomata, and trichome densities, and negatively correlated with vessel member length and leaf thickness. However, on day 16, the branch water status was negatively correlated only with vessel member length and diameter, implying different relative importance of anatomical parameters for surviving water stress in the vase. Our results suggest that Dodonaea 'Dana' branches exhibit a strong interconnection between environmental parameters and postharvest performance, showing temperature-related seasonal anatomical changes, which lead to differential hydraulic performance during vase life.
AB - Dodonaea 'Dana' is an Israeli hybrid with purple tinted leaves, cultivated for cut foliage branches. Cut Dodonaea branches showed strong seasonal variations in longevity, wilting after one week in winter, while displaying a vase life of three weeks in summer. We examined the relationship between functional anatomy, including vessel, stomata and trichome densities, vessel member length and leaf thickness, and water status of cut branches during vase life over two consecutive seasons, in relation to the average monthly day temperature. All the vascular and leaf anatomy traits examined were significantly correlated with seasonal average monthly day temperature. On day one of vase life the branch water status was positively correlated with vessel, stomata, and trichome densities, and negatively correlated with vessel member length and leaf thickness. However, on day 16, the branch water status was negatively correlated only with vessel member length and diameter, implying different relative importance of anatomical parameters for surviving water stress in the vase. Our results suggest that Dodonaea 'Dana' branches exhibit a strong interconnection between environmental parameters and postharvest performance, showing temperature-related seasonal anatomical changes, which lead to differential hydraulic performance during vase life.
KW - Fresh weight
KW - Functional anatomy
KW - Seasonal changes
KW - Vase life
KW - Water relations
UR - http://www.scopus.com/inward/record.url?scp=79957656623&partnerID=8YFLogxK
U2 - 10.1016/j.postharvbio.2011.03.004
DO - 10.1016/j.postharvbio.2011.03.004
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AN - SCOPUS:79957656623
SN - 0925-5214
VL - 61
SP - 184
EP - 192
JO - Postharvest Biology and Technology
JF - Postharvest Biology and Technology
IS - 2-3
ER -