The result showed: ① Setting percentage was different in different pollination stage and obviously higher in balloon stage than in early blooming stage.

In all cross-combinations with the same female parent, the ones with apricot variety Xinshiji as male parent have the highest setting percentage.

10% fruit-setting rate and maximum reached 25.

The result of the experiment showed that during of the flowering phase,GA3 sprayed at 20mg/L?50mg/L?80mg/L,NAA sprayed at 10mg/L?20mg/L?40mg/L or 2,4-D sprayed at 5mg/L ?10mg/L?15mg/L Could remarkably improve the fruit-setting rate of jinguang plum.

The result showed it can increase fruit-setting rate, primary product,and promoted ripeness at 10,15,20 mg/kg(active ingredient)level.

Effect of pinching bearing branches in different periods on fruit set rate and yield in main-planted varieties of Vitis amurensis Rupr.;

<Abstrcat>Different treatments of trunk ring incision in winter and main branch ring incision in the flowering period were used to study their effects on the flower bud formation and fruit setting rate of Jizuili litchi (Litchi chinensis Sonn).

Objective To study increasing the fruit setting rate of Citrus grandis.

In order to research a poisonless and harmless chemical method to reducing harm of low temperature on almond during florescence,effects of BBA on cold resistance and fruit setting rate in almond were tested respectively in laboratory and field.

Methods to enhance fruit set percentage of Xanthoceras sorbifolia Bge.

Middlle and short fruit branch,and flower clustered fruit spur are those of higher fully developed flower and higher fruit set percentaged through Continuous three years Study of flowering and fruit set habit and pollen germination on two varieties (long wangmao,yiwofeng) of kernel used apricot.