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Leaf cuticle characteristics and fol...

Stiegler, James Christopher.

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Leaf cuticle characteristics and foliar nutrient uptake by a cool-season and warm-season turfgrass.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Leaf cuticle characteristics and foliar nutrient uptake by a cool-season and warm-season turfgrass./
作者:	Stiegler, James Christopher.
面頁冊數:	150 p.
附註:	Source: Dissertation Abstracts International, Volume: 71-05, Section: B, page: 2754.
Contained By:	Dissertation Abstracts International71-05B.
標題:	Agriculture, Agronomy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3407372
ISBN:	9781109762853

Leaf cuticle characteristics and foliar nutrient uptake by a cool-season and warm-season turfgrass.
Stiegler, James Christopher.

Leaf cuticle characteristics and foliar nutrient uptake by a cool-season and warm-season turfgrass. - 150 p.

Source: Dissertation Abstracts International, Volume: 71-05, Section: B, page: 2754.

Thesis (Ph.D.)--University of Arkansas, 2010.

A series of field, greenhouse, growth chamber, and laboratory studies were conducted to increase our understanding of foliar absorption in high-maintenance turfgrasses and evaluate how various seasonal, anatomical and physiological dynamics may affect the permeation process. The following objectives were proposed on creeping bentgrass and hybrid bermudagrass putting green turf: (1) to comprehensively analyze the morphology and chemical make-up of the leaf cuticle; (2) to directly measure the seasonal uptake of foliar-applied nitrogen, applied as 15N urea, under field conditions; (3) to document the extent of N loss via ammonia volatilization following foliar-applied urea; (4) and to investigate the use of various inorganic and organic sources of N and their effect on foliar N absorption efficiency. Older leaves possessed significantly greater cuticle proper thickness compared to younger leaves. Presence of epicuticular wax crystalline structures highlighted potential impact on absorption efficiency of foliar-applied chemicals and fertilizers. The long-chain primary alcohol (1-hexacosanol) comprised 90% of creeping bentgrass leaf cuticle wax and variably influenced foliar N absorption efficiency. Foliar uptake of urea-N and absorption into plant tissues occurred rapidly, generally peaking at 4 h after treatment. Foliar absorption of N supplied as urea was affected by month of application and year, ranging variably from 36--69% for creeping bentgrass and 38--62% for hybrid bermudagrass and volatile loss of NH3-N was negligible (< 3%). Foliar uptake of the various N compounds by creeping bentgrass ranged from 31--56% of the N applied at 8 h after application. Foliar absorption of KNO3 into aerial plant parts was lower than most of the organic and inorganic sources tested, while many of the compounds supplied N to the plant in similar proportions.

ISBN: 9781109762853Subjects--Topical Terms:

1018679
Agriculture, Agronomy.

Leaf cuticle characteristics and foliar nutrient uptake by a cool-season and warm-season turfgrass.
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