One problem with the Maypan is that seed production is dependent on hand pollination of each individual floret.
12.
In China, hand pollination of apple orchards is labor-intensive, time consuming, and costly.
13.
Seed can be obtained by careful hand pollination of the flowers, but seedlings reach flowering size very slowly.
14.
The delicate blossoms open for a few hours only each year, making hand pollination necessary to ensure a crop.
15.
When cultivating Proteas, breeders uses hand pollination as a controlled method to transfer pollen from one flower to another.
16.
On field crops such as squash, floating row covers can be used to exclude the beetles, however this may necessitate hand pollination of flowers.
17.
"' Hand pollination "'( also called " mechanical pollination " ) is a technique used when natural, or open pollination is insufficient or undesirable.
18.
In Malaysia, where only about 1 % of the female flowers set fruit, no fruit is set on bagged flowers while hand pollination resulted in 13 % fruit set.
19.
The principal reasons for hand pollination include a paucity of natural pollinators, avoiding cross-pollination between varieties grown together or, conversely, in the controlled production of hybrids.
20.
The growing of vanilla remained a monopoly of Mexico until hand pollination methods were developed that allowed the plant to grow in other parts of the world, devastating the industry here.
