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文心兰切花产业化栽培基质的筛选研究 被引量:13
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作者 潘英文 林明光 陈施明 《热带农业科学》 2009年第7期32-35,共4页
选用4种基质材料,并根据4种基质优缺点和文心兰切花品种生理特性,设计9个基质配比处理和1个对照进行文心兰切花产业化栽培基质筛选研究,比较单种基质和不同配比混合基质对文心兰切花营养生长和生殖生长的生物性状各项指标的影响,观测原... 选用4种基质材料,并根据4种基质优缺点和文心兰切花品种生理特性,设计9个基质配比处理和1个对照进行文心兰切花产业化栽培基质筛选研究,比较单种基质和不同配比混合基质对文心兰切花营养生长和生殖生长的生物性状各项指标的影响,观测原始数据通过统计学软件SPSS进行方差分析和主成分分析,筛选出适合文心兰切花产业化栽培的基质配方为蜂窝碎石+松树皮+椰子壳+木炭(2∶2∶1∶1)。 展开更多
关键词 文心兰切花 基质配方 筛选研究
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Effects of K and N Nutrition on Function and Production of Ranunculus asiaticus 被引量:8
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作者 N.BERNSTEIN M.IOFFE +6 位作者 G.LURIA M.BRUNER Y.NISHRI S.PHILOSOPH-HADAS S.SALIM I.DORI E.MATAN 《Pedosphere》 SCIE CAS CSCD 2011年第3期288-301,共14页
Potassium (K) affects a range of physiological processes in the plant and is a key factor controlling crop productivity and yield quality. Little information is available concerning effects of K nutrition on functio... Potassium (K) affects a range of physiological processes in the plant and is a key factor controlling crop productivity and yield quality. Little information is available concerning effects of K nutrition on function of cut flower plants. The present study was carried out to investigate the interaction between K and N nutrition, on flower quantity and quality of Ranunculus asiaticus L. The plants were supplied with three levels of K fertigation (60, 120, or 180 mg K L-1) under 50 mg N L-1 application, and at the intermediate level of 120 mg K L-1, to three levels of N applications (50, 100, or 150 mg N L-l). The two lowest K treatments and the lowest N treatment excelled in flower production due to the lower incidence of stem-toppling, a disorder associated with localized Ca deficiencies in rapidly expanding tissues of the flower stem. Detrimental effects in terms of yield quality were apparent already under supply of 180 mg K L-1 and 50 mg N L-1, and were not associated with changes in osmotic potential, relative water content or membrane stability of the plant tissue, or with changes in mineral contents of the leaves other than reduced Ca under high N application. Our results suggest a low nutritional requirement of R. asiaticus L. for K and N, a lack of involvement of tissue water relations in the reduced flower quality under the application of high concentrations of K and N, and an induction of stem toppling under high application of N and K by reduced availability of Ca to the expanding tissue of the flower stem. 展开更多
关键词 CALCIUM cut-flower plant nutrition stem-topple
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