Application of biostimulants promotes growth and productivity of heat- stressed tomato (Solanum lycoperosicum) plants | [electronic resource]
EL-Sayed, Shereen S. F.
Application of biostimulants promotes growth and productivity of heat- stressed tomato (Solanum lycoperosicum) plants [electronic resource] استخدام المحفزات الحيوية لتحسين نمو وإنتاجية نباتات الطماطم المجهدة بالحرارة (Solanum lycoperosicum) - 2023 - p. 582-598
Includes bibliographic reference
The present study was conducted at the experimental area of Horticulture Research
Station at El-Kanater El-Khayria, Qalyubia Governorate, Egypt, throughout two seasons of
2019 and 2020 to estimate water requirement of Paulownia hybrid T121 seedlings irrigated at
three regimes each 3, 5 and 7 days intervals .The obtained results indicated that, all
parameters of vegetative growth e.i, seedling height , stem diameter , leaves area, biomass
fresh and dry weights significantly exceeded when irrigated each 3 days interval followed by
5 days then 7 days was the latest one. Meanwhile root length was the longest at 7 days
interval and the shortest was with 3 days. The amounts of irrigation water applied and water
consumption (L/seedling) increased under irrigation at 3 days intervals since gave the highest
significant water applied and consumption followed by irrigation at 5 days interval, then the
latest at 7 days interval. Average of water productivity at 3 days interval declared that, one
liter of water applied produced 4.45 and 1.16g biomass fresh and dry weights respectively.
While at 5 days it gave 3.99 and 0.98 g in addition, at 7 days interval induced 3.95 and 0.93 g
biomass fresh and dry weight during two seasons respectively. Also water use efficiency (WUE)
was influenced by different irrigation intervals and the differences between 3 and 5 or 7 days
intervals were significant in two seasons due to reduction of biomass fresh or dry weights,
furthermore, Paulownia hybrid T121 had taken higher amount of water applied and water
consumption but the most has been depleted by higher transpiration without using it in
metabolism synthesis. Total chlorophyll was influenced by different water regimes it is
significantly increased at abundance of water at (3 days) intervals meanwhile total
carbohydrate and proline content significantly decreased at same water regimes of (3days)
and the opposite occurred at water stress of (7 days). The obtained results indicated that,
it is not preferable mainly to depend uponPaulownia spp. in setting up forestation schemes
owing to poverty of water resources inEgyptian condition. Therefore it can be recommended
that economically can depend onanother fast-growing timber trees species in a forestation.
KEY WORDS: Paulownia spp. – Water requirements – Growth – Biomass fresh and dry weight –Water productivity- Water use efficiency.
Summary in Arabic
Plant growth promoting substances
Tomatoes--Effect of temperature on
Application of biostimulants promotes growth and productivity of heat- stressed tomato (Solanum lycoperosicum) plants [electronic resource] استخدام المحفزات الحيوية لتحسين نمو وإنتاجية نباتات الطماطم المجهدة بالحرارة (Solanum lycoperosicum) - 2023 - p. 582-598
Includes bibliographic reference
The present study was conducted at the experimental area of Horticulture Research
Station at El-Kanater El-Khayria, Qalyubia Governorate, Egypt, throughout two seasons of
2019 and 2020 to estimate water requirement of Paulownia hybrid T121 seedlings irrigated at
three regimes each 3, 5 and 7 days intervals .The obtained results indicated that, all
parameters of vegetative growth e.i, seedling height , stem diameter , leaves area, biomass
fresh and dry weights significantly exceeded when irrigated each 3 days interval followed by
5 days then 7 days was the latest one. Meanwhile root length was the longest at 7 days
interval and the shortest was with 3 days. The amounts of irrigation water applied and water
consumption (L/seedling) increased under irrigation at 3 days intervals since gave the highest
significant water applied and consumption followed by irrigation at 5 days interval, then the
latest at 7 days interval. Average of water productivity at 3 days interval declared that, one
liter of water applied produced 4.45 and 1.16g biomass fresh and dry weights respectively.
While at 5 days it gave 3.99 and 0.98 g in addition, at 7 days interval induced 3.95 and 0.93 g
biomass fresh and dry weight during two seasons respectively. Also water use efficiency (WUE)
was influenced by different irrigation intervals and the differences between 3 and 5 or 7 days
intervals were significant in two seasons due to reduction of biomass fresh or dry weights,
furthermore, Paulownia hybrid T121 had taken higher amount of water applied and water
consumption but the most has been depleted by higher transpiration without using it in
metabolism synthesis. Total chlorophyll was influenced by different water regimes it is
significantly increased at abundance of water at (3 days) intervals meanwhile total
carbohydrate and proline content significantly decreased at same water regimes of (3days)
and the opposite occurred at water stress of (7 days). The obtained results indicated that,
it is not preferable mainly to depend uponPaulownia spp. in setting up forestation schemes
owing to poverty of water resources inEgyptian condition. Therefore it can be recommended
that economically can depend onanother fast-growing timber trees species in a forestation.
KEY WORDS: Paulownia spp. – Water requirements – Growth – Biomass fresh and dry weight –Water productivity- Water use efficiency.
Summary in Arabic
Plant growth promoting substances
Tomatoes--Effect of temperature on