论罗斯金·邦德《樱桃树》的生态意蕴

印度当代著名英语作家罗斯金·邦德是一位心系自然保护和儿童福祉的作家。在短篇小说《樱桃树》中,邦德浓墨书写男孩(儿童)与樱桃树(自然)的密切关系,展现樱桃树的顽强生命以及曲折的成长历程,颂扬男孩对樱桃树的悉心关爱和保护,凸显男孩在陪伴樱桃树成长的过程中日益增强的生态意识。《樱桃树》实为一篇难得的儿童生态文学佳作。

樱桃树下

大约是5年前的春天，应好朋友老刘之约，我选了一个晴朗的星期天，驱车来到老刘的家乡，一个叫大沟村的地方做客。阳历4月，大地回春，太阳像贪睡的顽童，伸个懒腰才慢慢把暖意洒向人们。古城不太大，经不住四个轱辘的碾压，不一会就被远远抛在了后面。

樱桃树下

蒂姆四岁这年，一贯花天酒地的父亲向母亲提出了离婚。母亲带着他搬到了马洛斯镇定居。

Application of Landfill Composed of Biogas Residue and Slurry in Cherry Production

In order to explore the effects of landfill composed of biogas residue and slurry on the improvement of soil nutrients and cherry fruit yield, three treatments： control （no landfill）, landfilling with biogas residue and water （BR）, landfilling with biogas residue and slurry （BS） were conducted in a cherry orchard. The results showed that compared with the control, soil water content around the landfills with a radius of 60 cm within 30 d was increased in BR and BS treatments. The poment- age of short shoots and the total number of shoots of cherry trees were also signif- icantly increased by BR and BS treatments; the cherry fruit yield per tree and the single-fruit weight in BS treatment were increased by 21.76% and 28.89%, respec- tively. In addition, BS treatment obviously improved the contents of soil organic matter, soil available nitrogen, s0il available phosphorus, soil available potassium and other nutrients. The positive effects of BR treatment on the improvement of soil nutrients and cherry fruit yield were lower than those of BS treatment, indicating that the combined use of biogas residue and biogas slurry as landfill can improve the soil water and fertilizer status in orchards, and thus can be promoted in the cultivation of fruit trees.

Studies on Physiological Radiation Spectrum and Fruit Quality of Sweet Cherry in Different Canopies

[ Objective] The physiological radiation spectrum and fruit quality in different canopies of sweet cherry tree were studied. [ Method] Opti- cal fiber spectrum was applied to determine the physiological radiation spectrum in different canopies of sweet cherry tree. The fruit quality in differ- ent canopies was determined. [Result] The results showed that from the top part to the lower part and from the outer part to inner part of sweet cherry canopy, Me physiological radiation intensity and ratio of short wave light reduced significantly, while ratio of long wave light increased. Fruit mass, Vc, TSS and total sugar content were significantly decreasing, while organic acid content increasing, but the fruit edible percent was similar. Furthermore, the physiological radiation intensity was strong, fruit mass, TSS, Vc and total sugar content increased, but organic acid content re- duced. [ Condusion] The higher and bigger canopy of sweet cherry, the poor and lower physiological radiation intensity, photosynthesis accumula- tion and fruit quality. The study provided theoretical foundation and reference for the trim of sweet cherry.

Influence of Biopreparations on Maiden Growth of Sour Cherry （Prunus cerasus L.） in Organic Nursery- Preliminary Results

A study was conducted in an organic nursery in 2010 and 2011 on the maiden growth of sour cherry cultivars ＂Debreceni Botermo＂ and ＂Sabina＂ grafted on Mahaleb cherry seedlings （Prunus mahaleb L.）. The young trees were grown at a spacing of 25 cm × 1.0 m on a podzolic soil. The study focused on the differences in diameter and height of the maiden stock, the branch number, lateral shoots in the crown and their length, among treatments with various bioproducts applied to the maidens once or twice, such as granulated manure, Micosat, Humus UP （humus cultivated）, Humus Active ＋ Aktywit PM （positive microorganisms）, BioFeed Amin, BioFeed Quality, Tytanit and Vinassa. The control maidens were not fertilized at all, or fertilized with NPK （nitrogen, potassium, phosphorus）. The first time when these products were applied in the nursery was mid-May, and the second time was one month later. Repeating the application of humic preparations （vermiculites） and a formulation containing mycorrhizal fungi （Micosat） gave better results than applying them only once, but in the case of BF Quality and the preparation Tytanit treating the plants for the second time did not increase their growth vigour compared to the plants treated only once. And the effectiveness of the biopreparations was different for the treated cultivars changed.

Mapping of Quantitative Trait Loci （QTLs） Controlling Cherry and Green Bean Characters in the Robusta Coffee （Coffea canephora Pierre）

In coffee breeding practice, two quantitative traits, namely cherry and green bean characters are the important phenotypic selection index. The synchronous of cherry maturation, size, weight and shape of green bean are desirable traits for the future breeding. In order to increase the breeding efficiency, a set of quantitative trait loci （QTLs） analysis controlling these traits was carried out. The QTL analysis was performanced in cross pollinated population of Coffea canephora using single nucleotide polymorphisms （SNPs） and simple sequence repeats （SSRs） markers. Totally 12 QTLs determined desirable cherry and green bean traits were identified on 9 linkage groups （LG）, where these QTLs mapped forming clusters in 11 different chromosomal regions. The desirable traits which can be detected by their QTLs are synchronous of cherry maturation （LG B and LG G）, cherry size （LG A, LG F and LG G）, bean shape （LG B, LG D and LG J）, bean weight （LG H）, bean size （LG A and LG E） and cherry-bean size （LG K） The gene action of these QTLs was dominance or an interaction of alleles （epistasis between alleles at the studied locus） effect. The yielded linkage map and the detected QTL can provide a tool for further genetic analysis of two traits and be potential for maker-assisted selection in C. canephora breeding.

Treatments Comparison of Mineral and Bio Fertilizers in the Apple and Sour Cherry Organic Nursery

Maiden trees of apple cultivars ＇Topaz＇ and ＇Ariwa＇ grafted on M26 rootstock and of sour cherry cultivars ＇Debreceni Botermo and ＇Sabina＇ on mahaleb cherry （Prunus mahaleb L.） were fertilized with bioproducts such as： Fertigo-granulated manure, Micosat-microbial inoculum consisting of mycorrhizal fungi; Humus UP-an extract from vermicompost; Humus Active ＋ Aktywit PM-an extract from vermicomposts with PM （Positive Microorganism）; BioFeed Amin--a plant extract reinforced with amino acids; BioFeed Quality-a seaweed extract reinforced with humic and fulvic acids; Tytanit-titanium; Vinassa-molasses residue from yeast production; Florovit Eko-composed of many environmentally-friendly products. Control maidens were fertilized with mineral fertilizers containing mainly NPK. The maiden trees fertilized with the preparations Tytanit and Humus UP grew less vigorously and produced smaller increases in the length of lateral shoots than those fertilized with mineral fertilizers. On the other hand, bio preparations such as BF Amin, BF Quality, Micosat and Vinassa promoted tree branching and intensified the growth of lateral shoots, stimulating tree growth to a greater extent than the mineral fertilizers.

The Influence of Mycorrhizal Fungi on the Growth of Apple and Sour Cherry Maidens Fertilized with Different Bioproducts in the Organic Nursery

Apple/Malus x domestica cv. ＇Topaz＇/M26 and sour cherry cv. ＇Debreceni Botermo＇/Prunus mahaleb L. maidens were fertilized with different organic fertilizers and soil amendments in an organic nursery. A mycorrhizal inoculant, Micosat, was added to the non-fertilized control and to combinations fertilized with various bioproducts. Under assessment was the effect of nutrient delivery on the growth and development of maiden fruit trees focussing on tree height, thickness of the tree trunk, the number and the length of lateral shoots in each treatment combination. It was found that the introduction of mycorrhizal fungi into the soil without fertilizer application significantly improved the growth and development of apple and sour cherry maidens. Mineral fertilizer application （NPK） combined with mycorrhizal inoculation had a negligible effect on the above features. In the presence of bioproducts such as granular manure, Humus Active ＋ Aktywit PM, BF Amin, Vinassa and Florovit Eko, the mycorrhizal fungi were more biologically active than in the absence of these products.

Vegetative Habitus and Fruit Production of Self-rooted Cherry Cultivar ＇Hedelfingen＇ Wild Type and Somaclonal Grafted on ＇Gisela 6＇ and ＇Colt＇ Rootstock

The study considers the morphological and physiological behaviour of self-rooted sweet cherry CV （Cultivar） ＇Hedelfinger＇ wild type （H） and somaclonal （HS） grafted on ＇Gisela 6＇ and ＇Colt＇ rootstock. The somaclonal showed reduced vegetative vigour without any variation of the natural tree＇s architecture. The rootstock ＇Gisela 6＇ caused change in genotype habitus inducing a spreading shape, while ＇Colt＇ increased trunk diameter and height. Fruit quality and size were not affected by genotype nor rootstock. ＇Gisela 6＇, from these preliminary data, had proved the most suitable rootstock for both genotypes since it reduced the tree size and vigor and induced early bearing and the production of a greater number of fruiting spurs.