Effects of planting dates and shading on carbohydrate content,yield,and fiber quality in cotton with respect to fruiting positions

Two cotton（Gossypium hirsutum L.） cultivars, Kemian 1（cool temperature-tolerant） and Sumian 15（cool temperaturesensitive） were used to study the effects of cool temperature on carbohydrates, yield, and fiber quality in cotton bolls located at different fruiting positions（FP）. Cool temperatures were created using late planting and low light. The experiment was conducted in 2010 and 2011 using two planting dates（OPD, the optimized planting date, 25 April; LPD, the late planting date, 10 June） and two shading levels of crop relative light rate（CRLR, 100 and 60%）. Compared with fruiting position 1（FP1）, cotton yield and yield components（fiber quality, leaf sucrose and starch content, and fiber cellulose） were all decreased on FP3 under all treatments. Compared with OPD-CRLR 100%, other treatments（OPD-CRLR 60%, LPD-CRLR 100%, and LPD-CRLR 60%） had significantly decreased lint yield at both FPs of both cultivars, but especially at FP3 and in Sumian 15; this decrease was mainly caused by a large decline in boll number. All fiber quality indices decreased under late planting and shading except fiber length at FP1 with OPD-CRLR 60%, and a greater reduction was observed at FP3 and in Sumian 15. Sucrose content of the subtending leaf and fiber increased under LPD compared to OPD, whereas it decreased under CRLR 60% compared to CRLR 100%, which led to decreased fiber cellulose content. Therefore, shading primarily decreased the ＂source＂ sucrose content in the subtending leaf whereas late planting diminished translocation of sucrose towards cotton fiber. Notably, as planting date was delayed and light was decreased, more carbohydrates were distributed to leaf and bolls at FP1 than those at FP3, resulting in higher yield and better fiber quality at FP1, and a higher proportion of bolls and carbohydrates allocated at FP3 of Kemian 1 compared to that of Sumian 15. In conclusion, cotton yield and fiber quality were reduced less at FP1 compared to those at FP3 under low temperature and low light conditions. Thus, reduced cotton yield and fiber quality loss can be minimized by selecting low temperature tolerant cultivars under both low temperature and light conditions.

Planting Adaptability of Brassica napobrassica cv. Huaxi Under Economic Fruit Forest

The growth speed,fresh grass yield,nutritional components,soil nutrient variation and economic benefit of Brassica napobrassica cv. Huaxi under different planting patterns( drilling,hole sowing and seedling transplanting) were analyzed by a test of interplanting B. napobrassica cv. Huaxi under economic fruit forest,to solve the contradiction between food and feed during rapid development of ecological animal husbandry and improve land utilization rate. The comprehensive performance of B. napobrassica cv. Huaxi was good under the three planting patterns,and the comprehensive performance of B. napobrassica cv. Huaxi under the seedling transplanting pattern was the best among the three planting patterns. The fresh grass yield and net profit of B. napobrassica cv. Huaxi under the seedling transplanting pattern can reach 125 580. 0 kg/hm^2 and 16 674. 0 Yuan/hm^2,respectively. Interplanting B. napobrassica cv. Huaxi under economic fruit forest can improve soil physical and chemical properties,increase soil nutrients and inhibit weed growth.

Effects of Plant Density on Boll Retention and Yield of Cotton in the Mid-South

The number of cotton (Gossypium hirsutum L.) plants being grown per unit of land area has gained attention due to the technology fees associated with seed containing value added traits. We investigated boll retention, yield, and yield components of cotton grown with reduced stands of 20% to 40% from the uniform planting pattern of four seeds per 30.5 cm of row. Five field experiments were conducted from 2012-2014 using eight treatments arranged in a randomized complete design with six replications. Yield and yield component data were collected. The plant one-row skip one-row treatment resulted in significant yield losses across all five experiments compared to the uniform planting pattern. Treatments with 20% stand reductions did not result in lower total yields;however, each plant in these treatments had to produce two additional bolls to maintain yield. Treatments which had at least 61 cm skips, 40% stand reduction, resulted in lower yields. Treatments had minor affects on boll weight, and lint percentage. The uniform planting pattern produced 67% of its yield from position one bolls compared to about 50% for treatments with reduced stands. Reduced stand treatments produced about 20% of their yield on monopodial branches compared to 10% for the uniform treatment. With modern precision planting equipments, opportunities exist to reduce seed rate and maintain yield;however, many production risk factors must also be considered before a reduced seeding rate is adopted.

Biochemical Changes of Cubiu Fruits (Solanum sessiliflorum Dunal, Solanaceae) According to Different Tissue Portions and Ripening Stages

Cubiu fruits (Solanum sessiliflorum Dunal, Solanaceae) are known for their high nutritional value and low caloric content. This work aimed at evaluating biochemical indices of cubiu fruits according to different tissues (peel, pulp and placenta) and ripening stages (green, turning, ripe and fully ripe). The fruits were randomly harvested to investigate sensory aspects (colorimetry, blanching effect, pigments) and biochemical indices (moisture and dry matter, Total Soluble Solids (TSS), pH, Titratable Acidity (TA), TSS/TA ratio, ascorbic acid, Alcohol-Insoluble Solids (AIS), pectinesterase activity and pectin content). The analyses were performed at the laboratory of Instituto Nacional de Pesquisas da Amazonia (INPA), Manaus, Brazil. The blanching process preserved pulp colors at all ripening stages. Chlorophylls were higher in green peels;flavonoids and carotenoids, in fully ripe peels. Anthocyanins were entirely absent. Pulp (turning fruits) showed the highest moisture content (91.05), followed by ripe pulp (90.70) and fully ripe pulp (90.62). Pulp TSS changed little whereas placenta TSS declined and were associated with increased TA and pH reduction (fully ripe fruits). Pulp pH and TA varied little whereas placenta pH was notably low and TA was remarkably high (fully ripe fruits). Pulp TSS/TA ratio showed predominance of TSS while in placenta, there was predominance of organic acids. AIS, precursors of pectin, were stable during ripening. The statistical analysis of dietary fiber content showed one modal value in the AIS. In pulp, pectinesterase activity correlated inversely with pectin content. Cubiu fruits were significant sources of bioactive compounds, e.g. chlorophylls, flavonoids and carotenoids, predominantly in the peel and the pulp;soluble functional fibers, e.g. pectin (g/100 g fresh weight), particularly in the green peel (1.00) and the fully ripe pulp (1.12), and other versatile molecules, e.g. ascorbic acid (mg/100 g fresh weight), especially in the fully ripe peel (32.45) and placenta (24.84) and the turning placenta (21.27). Cubiu fruits are rich in ascorbic acid and should be included in the human diet.

POST—DEHYDRATION SHELF LIFE EXTENSION OF FRUITS AND NUTS

Post- dehydration storage life of fruits and plant nuts such as apricot, raisin, date, fig, almond, peanut, pinenut and walnut, was studied. The results showed that radiation dose of 1.0 kGy completely, inhibited insect infestation. Low dose radiation (0.25kGy) plus 20℃ and vacuum extended the storage life for 6 and 12 months in dry nuts and fruits respectively without affecting nutritional quality except ascorbic acid. Packaging in opaque pouches under vacuum proved better than other treatments in maintaining nutritional and sensoric quality.

不同整形方式对澳洲坚果植株冠层生理特性、产量及品质的影响

研究不同整形修剪对植株冠层特性、产量和果实品质的影响,为澳洲坚果园树体管理和农艺配套措施等提供依据。以10年生的澳洲坚果品种O.C为试验材料,对植株进行主干分层形(A处理)、疏散分层形(B处理)和多干开心形(C处理)等整形修剪处理,对照(CK)仅进行控高处理,连续3年观测各处理对树体冠层特性、坐果率、壳果单重、单株产量及果实品质等的变化。试验处理期间(2019年9月-2022年9月),植株叶面积指数大小总体表现为CK>A处理>B处理>C处理,在修剪初期(1月)各处理显著降低,修剪后期(8月)显著提高,光合有效辐射与叶面积指数变化趋势相反;修剪处理显著提高了坐果率、壳果单重及产量,总体表现为A处理>B处理>C处理>CK,并显著提高了果仁粗脂肪及棕榈油酸含量,对单个果仁重、出仁率等影响明显;在试验第1年,修剪处理后叶面积指数和光合有效辐射变化较大,如叶面积指数比对照降低60.70%(A处理)、65.17%(B处理)和67.09%(C处理)。随着试验进行(2021年-2022年),叶面积指数、光合有效辐射变化趋稳,叶面积指数比对照平均降低39.33%(A处理)、40.28%(B处理)和42.10%(C处理);澳洲坚果产量在试验期间年际变化各异,试验第1年比处理前的产量明显下降18.57%,其中,对照降低26.30%,而修剪处理平均降低15.91%。可见,修剪处理有一定的稳产作用,在处理第2年产量回升显著,修剪处理比处理前产量提高36.04%,对照仅同比升高3.61%,表明修剪处理可以显著提高澳洲坚果产量,但产量存在年际间的不同变化。综合来看,试验处理可明显改善植株冠层光照条件,提高坐果率及单个壳果的重量,单株产量显著提高,果实品质得以改善,尤其对内在品质如粗脂肪及棕榈油酸的含量提高显著,其中以主干分层形效果更为显著。

Over-expression of GhDWF4 gene improved tomato fruit quality and accelerated fruit ripening

Brassinosteroids（BRs）, a class of steroidal phytohormones are essential for many biological processes in plant. However, little is known about their roles in fruit development. Tomato is a highly valuable vegetable and has been adopted as the model species for studying fruit growth, development, and ripening. To understand the role of endogenous BRs in the development of tomato fruit, the expression patterns of three homologues of DWF4 gene were investigated and the transgenic tomato plants were generated in which the Gh DWF4 gene from upland cotton（Gossypium hirsutum L.） was ectopically expressed. The contents of main quality components were analyzed in fruits of transgenic tomato line and non-transgenic line（control plant, CP） when the fruit was mature. Sl CYP90B3 that possesses high homology with Gh DWF4 preferentially expressed in mature fruit. Significantly higher contents of soluble sugar, soluble proteins, and vitamin C were obtained in fruit of transgenic tomato lines compared with those in the CP. Furthermore, overexpressing Gh DWF4 promoted fruit growth and ripening. The weight per fruit was increased by about 23% in transgenic lines. In addition, overexpressing Gh DWF4 promoted the germination of transgenic tomato seeds and hypocotyl elongation of seedlings. These results indicated that overexpressing Gh DWF4 gene in tomato could increase the contents of many nutrients in fruit and accelerate fruit ripening. It is suggested that increased endogenous BRs in fruit affect the growth and development of tomato fruit and therefore improved the nutrient quality of tomato.

栽培措施对西瓜果实大小的影响

为研究栽培措施对西瓜果实大小的影响,以“苏蜜518”为试材,“8424”为对照,采用不同整蔓方式结合不同坐瓜数以及不同整蔓方式结合不同种植密度2种处理方式,调查不同处理下果实重量、纵横径、果皮厚度、心糖、边糖等性状。结果发现,采用4蔓留不同坐瓜数试验无法获得预期结果,每株只能坐瓜2个,且果实重量差异显著。“苏蜜518”的小瓜重量为2.09~2.54 kg,“8424”的小瓜重量为2.24~2.54 kg。采用高密度栽培可以有效控制西瓜果重;高密度栽培结合整蔓留2个瓜,大小瓜差异显著,小瓜与大瓜相比,皮薄,中心糖略低,边糖差异不大。3蔓2瓜,株距30 cm,可以把小瓜重控制在2 kg以内。该研究探索了通过栽培措施调控西瓜果实大小的可行性,对生产中调控西瓜果实大小和产量有一定的应用价值。

普洱市生态咖啡园栽培技术研究

该文以普洱市地区为视角,以生态咖啡园为目标,从选地、建园和咖啡栽培各个方面逐一梳理了栽培技术,合理选择优质咖啡品种,引入生态防治病虫害的方法,创建生态栽培环境,确保咖啡园整体的生态性,以此保障普洱咖啡的栽培质量,顺应人们对咖啡果实的各项需求。在种植实践中,某咖啡园选择卡蒂姆7963为基础咖啡种植品种以“德热4号”为新品种进行联合种植。种植对比发现:卡蒂姆具有高产性,“德热4号”具有较强的抗病能力。

“环境影响番茄果实色泽变化”实验的PBL教学实践

运用问题导向学习(PBL)教学方法,以番茄果实着色不均的品质问题为教学实验切入点,引导学生查阅文献解析影响果实品质的环境因子,鼓励学生基于文献查阅结果提出合理设想。根据实验假设,教师引导学生设计不同温度及光照强度组合的多因子实验。通过果实表型观察、叶绿素/番茄红素含量测定、果实硬度分析及荧光定量PCR检测基因表达等植物生理学综合性实验,逐步引导学生发现高温通过抑制番茄红素关键基因的表达抑制番茄红素的合成,从而导致果实着色不均的机理。通过实验,学生能切实感受农业生产与科学研究的紧密联系,体会理论指导实践的重要意义。因此,PBL法结合农业生产实际问题设计的教学实践对培养学生专业知识的综合应用、训练学生的科学思维及创新研究能力具有重要作用。

不同复配基质对红颊草莓植株生长和果实品质的影响

为探究4种不同复配基质对红颊草莓植株生长和果实品质的影响,文章根据草莓生长对基质特性的需求,利用菌菇渣、椰糠和醋糟等常用农业废弃物,与泥炭、珍珠岩、蛭石混合复配基质,泥炭∶珍珠岩∶蛭石=60∶20∶20(T1);椰糠∶泥炭∶蛭石∶珍珠岩=50∶40∶5∶5(T2);菌菇渣∶泥炭∶蛭石∶珍珠岩=40∶30∶15∶15(T3);醋糟∶泥炭∶蛭石∶珍珠岩=60∶20∶10∶10(T4),比较其对红颊草莓植株生长和果实品质的影响。结果表明,处理T1、T2和T3的植株形态无显著性差异,处理T4的叶长、叶宽和株高显著低于处理T1;在物候期方面,T3处理果实始熟期比其他3个处理早8~11 d;在果实产量和品质方面,处理T1单株产量和可溶性固形物含量最高,处理T2的平均单果重最高、总酸含量最低,处理T3果实硬度显著低于其他处理,但可溶性固形物含量和T1接近,显著高于T2和T4,处理T4硬度和总酸含量最高,但单株产量、单果重和可溶性固形物含量最低。因此,椰糠和菌菇渣可替代部分泥炭,尤其是复配基质T3在早熟化栽培方面有良好的应用前景。

基于株高、产量、品质联合分析筛选砂糖橘优良砧木

【目的】通过联合分析不同砧木砂糖橘植株株高、产量、品质的相关指标,构建砂糖橘优良砧木筛选的综合评价模型,为砂糖橘优良砧木的选择提供依据。【方法】以10种不同的砧木嫁接砂糖橘,对嫁接后的植株株高、产量、品质进行差异显著性分析、相关性分析及主成分分析,获得筛选砂糖橘砧木的核心指标并构建综合评价模型,根据模型评分进行排序。【结果】株高、产量、品质22个指标均表现出了显著的差异性并有着多组相关关系,主成分分析筛选出了6个主成分,累积贡献率达到了93.407%,共注释了包括果实质量及横纵径大小决定因子、产量和果形指数决定因子、果皮厚度决定因子等6个关键因子。【结论】综合评价模型得分表明,红黎檬、香橙和粗柠檬可推荐为广东省适用的3个优选砂糖橘砧木。

植物生长调节剂对甜樱桃果实发育及内源激素动态变化的影响

以7年生萨米脱甜樱桃为试材,研究甜樱桃果实、果柄生长发育及内源激素含量的变化趋势,并探讨GA_(3)+6-BA处理对果实、果柄生长发育及内源激素含量变化的影响。结果表明:甜樱桃果实生长发育期内,果实重量相关性状中单果重、果实纵径和果实横径的动态模型符合Logistic方程,果实重量最大相对生长速率出现的时间在花后28 d左右,果实中ABA、GA_(3)、IAA、ZR含量均呈先下降后上升的变化趋势,果柄与果实内源激素含量变化趋势并不协同;GA_(3)+6-BA配施处理后,促进了甜樱桃果实及果柄的生长,使内源激素IAA、GA_(3)、ZR的含量显著增加,并显著增加了果柄(GA_(3)+ZR+IAA)/ABA值。研究结果为植物生长调节剂在甜樱桃上的应用提供了一定的理论参考依据。

植物精油的递送体系及其在果蔬保鲜中应用的研究进展

植物精油能够有效延长果蔬保质期,因其具有抗氧化、抑菌、驱虫等生物活性,是绿色天然的果蔬保鲜剂。然而精油存在易挥发、稳定性差、亲水性弱等缺陷,并且具有较强的芳香气味,故在果蔬保鲜等应用中受限。稳定性强、能够与外界环境形成屏障的植物精油递送体系为解决上述问题提供了新的方法和途径。此外,递送体系还可以提高生物相容性并具有可控释功能,能够增强植物精油的利用率。鉴于此,本文综述了植物精油的成分及其抗氧化、抑菌、驱虫等生物活性及相应的作用机制,重点分析了纳米乳液、微乳液、微胶囊、脂质体等递送体系及制备方式,讨论了植物精油包封效率、粒径和物理稳定性的主要影响因素如制备方法、乳化剂、壁材的种类和浓度比例等,总结了植物精油递送体系在果蔬保鲜中的应用及展望,旨在为开发新型果蔬保鲜剂提供理论依据。

复合植物生长调节剂对荔枝开花及坐果的影响

以妃子笑荔枝品种为试材,采用4个复合植物生长调节剂处理喷施花穗,分别为乙烯利+多效唑(T1)、乙烯利+烯效唑(T2)、乙烯利+多效唑+乙氧氟草醚(T3)、乙烯利+稀效唑+乙氧氟草醚(T4),以清水为对照,比较不同处理对荔枝开花节奏、花量、坐果量以及果实品质的影响。结果表明,4个复合植物生长调节剂处理均可显著降低妃子笑荔枝雄花量,提高雌花率与单穗坐果量,而对果实品质的影响较小,其中T4处理的效果最佳,处理后可显著提早6 d开放雌花,并延长雌花累计开放天数至11 d左右,雄花量约为对照的1/15,雌花率提高至81.76%,单穗坐果量提高至12.00粒,可食率提高3~4个百分点。研究结果可为生产上使用植物生长调节剂促进荔枝提质增产提供依据。

果树木屑黑木耳袋栽基质研究

黑木耳产业对栎木资源的依赖是该产业发展和生态文明建设不相适应的突出表现,因而选取果树替代传统栎木是促进黑木耳产业绿色生态发展的潜在途径。本文选取苹果树木屑、桃树木屑、桔树木屑和核桃树木屑为黑木耳主要栽培基质,通过菌丝生长速度、菌丝密度、菌丝色泽以及锁状联合数目等指标考核最佳果木木屑袋栽基质。结果表明,黑木耳菌丝在桃树木屑袋料基质上生长最好,生长速度(5.62 mm/d)比对照组(5.24 mm/d)提高了7.25%;菌丝生长势较好,边缘整齐、浓密、色泽洁白且锁状联合数目较多;选取78%、82%、86%和90%等4个不同桃树木屑配比,通过不同袋料基质对桃树木屑黑木耳袋栽基质进行优化研究,最佳果木黑木耳袋栽基质配方为:桃树木屑78%、米糠19%、红糖1.5%、石膏粉1%、石灰粉0.5%,此时黑木耳菌丝的生长速度(10.06 mm/d)比对照组的生长速度(5.88 mm/d)提高了71.09%,且锁状联合数目最多。本研究结果表明,桃树可替代栎木进行黑木耳袋料栽培,为黑木耳产业的绿色高质量发展奠定基础。

种植模式和留瓜节位对大棚厚皮甜瓜光合特性及产量品质的影响

以厚皮甜瓜‘西州蜜25号’为试验材料,于临沂设施农业气象试验基地温室大棚内开展双因素裂区试验,设置2种种植模式(垄上单行D1和垄上双行D2)和3种留瓜节位(11-12节位R1、13-14节位R2和15-16节位R3)共6个处理,测定植株叶面积、光合参数、产量构成因素及果实品质,探究不同种植模式和留瓜节位对大棚厚皮甜瓜光合特性、产量及品质的影响。结果表明:(1)垄上单行种植模式光合效率高于双行种植模式,单行种植模式下甜瓜果实果径、单果重和可溶性糖含量较双行种植模式分别显著增加2.4%、11.1%和9.5%(P<0.05)。留瓜节位高低对植株营养生长和生殖生长调节作用明显,R2处理植株光合特性、果长、果径及单果重均表现最佳,单果重分别较R1、R3处理增加9.41%和14.73%(P<0.05)。留瓜节位对甜瓜果实品质影响极显著(P<0.01),R1处理下可溶性糖含量最高,R2处理糖酸比最大,R3处理VC和可滴定酸含量最高。(2)种植模式和留瓜节位交互作用对厚皮甜瓜叶面积、SPAD及Pn、Ci、Gs、Tr影响显著(P<0.05),至成熟前D1R2处理叶片SPAD以及Pn、Gs、Tr值最大。交互作用对果长的影响显著(P<0.05),对果径、果形指数和单果重影响极显著(P<0.01),其中D1R1处理果径最大,D1R3处理果型指数最高;D1R2处理果长和单果重最大,平均单果重较其他处理最大增重达28.7%。交互作用对VC含量影响显著(P<0.05),对可滴定酸、可溶性糖含量和糖酸比影响极显著(P<0.01),其中D2R3处理VC含量最高,D1R3处理可滴定酸含量最高,D1R1处理可溶性糖含量最高,D1R2处理糖酸比最大。(3)在种植密度和功能叶数量(22500株·hm^(-2),25节打顶)相同情况下,垄上单行种植和13-14节位留瓜互作模式(D1R2处理)厚皮甜瓜产量、风味口感和VC含量评价指标得分最高,商品价值最佳,推荐该种植模式在北方早春大棚厚皮甜瓜立架栽培中应用推广。

种植环境及密度对水果青萝卜生长、产量和品质的影响

为探究水果萝卜适宜的种植环境和密度,以水果青萝卜为供试对象,在推荐最大种植密度下分别采用厚土墙日光温室(R_(1))、拱棚(G_(1))、大田(L_(1))3个种植环境,在大田种植条件下设置111110棵/hm^(2)(L_(1))、55555棵/hm^(2)(L_(2))、27777棵/hm^(2)(L_(3))3个种植密度处理,调查水果青萝卜的生长情况、产量和品质。结果表明,不同种植环境下,与L_(1)相比,R_(1)和G_(1)处理的叶面积、叶鲜干质量、根鲜干质量、产量和可溶性糖含量增加,可溶性固形物、维生素C含量减少,且G_(1)处理的根鲜干质量、产量和可溶性糖含量最高,分别为924 g、28.8 g、102.67 t/hm^(2)、3.34%,与L_(1)相比分别增加了52.98%、43.95%、52.99%、16.38%。在大田种植条件下,随着种植密度的增加,叶面积、叶鲜干质量、产量和可溶性糖含量先升高后降低,维生素C呈降低趋势,可溶性固形物含量先降低后升高,其中L2处理的产量与可溶性糖含量最高,分别为93.55 t/hm^(2)、3.64%,较L_(1)和L_(3)处理产量分别升高了39.4%、99.04%,可溶性糖含量升高了26.83%、7.06%。综上,水果青萝卜在拱棚种植下生长最佳,适宜大田的种植密度为55555棵/hm^(2)。

棉花果枝夹角研究现状

棉花是世界上最重要的天然纤维作物,也是我国重要的经济作物和纺织工业原料。果枝夹角是构成棉花株型结构的重要性状之一,果枝夹角的变化直接或间接影响冠层结构、光能时空分布、成铃结构和机采性状。从栽培学和分子生物学的角度对棉花果枝夹角的研究现状进行评述,总结前人的研究成果,探讨棉花果枝夹角研究的趋势,以期为棉花株型育种改良提供参考,进而促进棉花育种工作。

耀堂仙桃蛋黄果在云南孟连引种试种初报

为了解蛋黄果优良品种耀堂仙桃在云南孟连的生产状况及适应性,对2020年引种于云南孟连县勐马镇的耀堂仙桃蛋黄果生长表现进行现场调查,测定蛋黄果生长指标、果实品质性状,并与同地块种植的本地圆果型蛋黄果同龄植株进行对比。结果表明:耀堂仙桃蛋黄果在孟连适应性强,树体生长快,平均株高达199.3 cm、冠幅2.5 m×2.5 m、主干高度30.1 cm、干周23.4 cm、结果枝长度32.3 cm、结果枝条粗度3.1 cm;投产早,2.5年生苗定植第三年就可大量挂果,平均单株产量达12.8 kg,是本地圆果型蛋黄果产量的3倍;果实品质佳,可食率、蛋白质、抗坏血酸、总糖含量均高于本地圆果型蛋黄果,外观鲜亮,商品性好;一年可多次成花结果,主要以3—4月成花的小果为主,此时期成花的果在11月上旬至翌年1月上旬上市,刚好能够弥补冬季水果销售空挡期,价格可达14~25元/kg;抗寒、抗旱,耐贫瘠,粗放管理仍可正常挂果。调查分析认为,蛋黄果优良品种耀堂仙桃完全适宜在云南孟连推广种植。