珍珠番石榴

珍珠番石榴采取一年两次短截，彻底防治根线虫，适时套袋保果等技术措施，商品果率高达80%，平均果重200g以上。

The commodity rate and single fruit weight in Pearl grara ( Psidium guajara ) could reach 80 % and over 200g of single-fruit-weight , respectively with two time of short-lopping per year to control root nematode and to cover the fruits by packet during their growth .

回缩树冠对珍珠番石榴枝梢生长的影响

Effects of crown retraction on the shoot growth of pearl-guava

施肥对珍珠番石榴产量和品质的影响

Effects of Fertilization on the Yield and Quality of Pearl-Guava

冷藏可有效延长珍珠番石榴的贮藏期。

Refrigerationcould extend the storing period of guava fruit affectively .

珍珠番石榴产期调节技术研究

Studies on Regulating the Fruit Maturation of Pearl-Guava

金沙江干热河谷台湾珍珠番石榴引种试种初报

A Preliminary Report on Introduction and Trial-planting of Taiwan Peal Guava in Dry-hot Valley of Jinsha River

该试验的内容是不同物理、化学方法对珍珠番石榴产期、产量和产值的影响。

The content of the trial are the effects of different physical and chemical measures on the maturation time , yield and value of Pearl-Guava .

本文选取珍珠番石榴为研究对象，对番石榴多糖的提取、纯化、分级、纯度鉴定、结构研究、降血糖活性等进行了较为系统的研究。

In this thesis , the extraction , isolation , purification , gradation , purity determination , and structure analysis of polysaccharides from pearl guava were extensively studied and their hypoglycemic effect in rats was investigated .

4月1日喷施30%尿素可促使珍珠番石榴安全落叶，但与直接修剪相比，其对产期、产量和产值没有更积极的作用。

The leaves could be got rid off safely by spraying thirty percent Urea on April 1st , but there is no positive effect on fruit maturation , yield and value of pearl-guava compared with pruning directly .

常规栽培时，珍珠番石榴产期与荔枝、龙眼重叠，因此植株效益相对较低。该试验的内容是不同物理、化学方法对珍珠番石榴产期、产量和产值的影响。

The harvest time of Pearl-Guava is same to litchi and longan under normal cultivate pattern . So the farming benefit is low relatively . The content of the trial are the effects of different physical and chemical measures on the maturation time , yield and value of Pearl-Guava .