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利用‘神马’、‘优香’等5个切花菊品种组配成6个杂交组合,进行其杂交F1代花序直径、小花数目、株高等若干性状的统计分析,研究切花菊杂交F1代若干性状的遗传与变异特性。结果表明:与双亲相比,切花菊杂种一代的花期分离广泛,多介于双亲之间;父母本各花色遗传潜能的大小为:白色粉色黄色绿色,且白色表现出较强的偏母性遗传特点;杂种总平均花序直径、舌状花数目和筒状花数目分别相当于亲中值的85.3%、83.5%和93.6%,但不同杂交组合的杂交优势不一样,且优势表现程度依组合而异;花瓣长度、花梗粗度、株高、茎粗度表现出一定的减小趋势;各性状间具有显著相关性,可在一定程度上决定根据育种目标所确定的对切花菊性状的选择方向。 相似文献
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N. BERNSTEIN M. IOFFE G. LURIA M. BRUNER Y. NISHRI S. PHILOSOPH-HADAS S. SALIM I. DORI E. MATAN 《土壤圈》2011,21(3):288-301
Potassium (K) aflects 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-1). 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. 相似文献
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针对肥料对切花百合品质的影响,采用进口花多多肥进行营养组合试验,根据其不同的氮磷钾及中量、微量元素组合就OT系百合(Lilium‘Oriental Hybrids’×Lilium‘Trumphet Hybrids’)‘Manissa’不同生长期的需肥特性进行了研究.结果表明,氮磷钾和中量元素钙镁对百合的交互协同作用十分显著,且花多多23号+8号+12号组合对百合‘Manissa’的品质改善最佳.其中花多多23号ω(N)=15%、ω(P)=5%、ω(K)=15%,中量元素ω(Ca)=5%、ω(Mg)=2%,ω(微量元素)=0.181 0%;花多多8号ω(N)=20%、ω(P)=10%、ω(K)=20%,中量元素ω(Mg)=0.15%,ω(微量元素)=0.212 2%;花多多12号ω(N)=15%、ω(P)=10%、ω(K)=30%,中量元素ω(Mg)=0.05%,ω(微量元素)=0.088 8%. 相似文献
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梅花切花圃的建立和优质切花栽培技术初探 总被引:1,自引:1,他引:0
阐述了我国首个梅花切花生产基地的建立,并重点论述了梅花切花的各项栽培技术措施及注意事项,为梅花切花今后更进一步的发展提供了理论基础。 相似文献
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基于切花育种的中国姜花属野生植物观赏价值评价 总被引:1,自引:0,他引:1
采用野外考察的方法,以传统的切花品种白姜花和综合性状优良、在国外广泛应用的切花品种金姜花为参照,对收集到的25个野生种、变种、变型进行了以切花为应用目的、以观赏价值评价为主的育种资源评价。评价方法采用加权评分法,各性状指标以9分制赋分,性状指标的权重采用层次分析法确定,最后计算出各分类群的总分并排序。结果表明:评价结果与感官评价一致,筛选出综合观赏价值较高的5个野生种,明确了各分类群在各性状上的优势和需要改良的性状,可作为育种亲本形态学选择的参考依据,亦为姜花属切花花卉的育种奠定了基础。 相似文献