The following are commercial varities of cacao, except

Organic compounds serving as a source of energy, including sugars, starches, and cellulose

A substance whether natural or synthetic that can modify growth

Cabbage, onion, carrots require

Diseases of perennial crops may be found in the roots, leaves, flowers, and fruits. Fungicides are resorted to when

Following are ecological classification of plants according to water relations, except

The germination percentage of tomato after seed testing was 96 percent,therefore, the class of tomato seed is

The tilling of the soil when it is saturated with water

The implantation of a meristem from another plant to a plantlet or sterile plant in

Method of artificial propagation when the plant part to be rooted is still attached from the parent plant which supplies the nutrients and moisture while the parts is rooting.

The best seed storage temperature for orthodox seeds at relatively low humidity is

What happens in the phloem

What is the germination percentage of corn,if only 180 normal seedling has germinated out of the 200 seed sown

The class of seed which is considered the purest in terms of varietal purity is

Slender specialized aerial stem that grows horizontally along the ground from the leaf axil at the base or crown that produce roots and leaf at the near tip

The treatment that removes the seed coat or alter it making it permeable to water

Inarching is also known as

An example of biennial vegetable crop is

What moisture content of the seed inhibit insect activity or little insect activity?

In seed production, roguing shall be done several times at different stages of the crop development however, the best time is when the crop is in

Method of raising rice seedling where pre-germinated seeds are sown on cement or puddle soil covered with banana leaves or polyethylene plastic sheet. The raised seedlings are ready for transplanting in 10-14 days

Type of germination when the cotyledon comes above the ground

The recommended seeding rate of peanut is 90 kilogram per hectare. How many kilogram seed is needed if the germinationtest is only 80 percent

Method of artificial plant propagation when rootstock and scion are made to unite while both of them are still growing on their own roots

A standard procedure of testing whether plant or plant tissue carry known diseases or not

Phototropism is a growth response to unidirectional light which is probably influenced by a particular growth hormone

Who is not the member of the National Seed Industry Council (the former Philippine Seedboard)?

Theoretically, crops intended for seed production shall be harvested at the point of

The increased genetic variability brought about by tissue culture

Planting the seeds by distributing them individually in the row is called

Vegetative multiplication through meristem culture is known as

The placement of seeds between layers of either moist, sand, soil, or sawdust at light or low temperature so the action of water high and low temperature will soften the seedcoat

Which among these food crops is the most involved in the formulation of government policies on food security?

Phenotype is determined by

The seeds are treated with fungicide before planting to protect them from soil-borne diseases that can cause poor seedling stand

Group of plant hormone that induces cell elongation and cell division

Type of cuttings consist of leaf blade, petiole, and short piece of the stem with an axillary bud

The type of germination when the cotyledon comes above the ground

Removal of developing embryo from seed and its cultivation in vitro is called

A process done on the seedling which is started at 7 to 10 days before transplanting in which the seedlings are exposed to full sunlight and temporary wilting

The scientist who formulated the Rule of Thumb in seed storage of seeds is

An undesirable phenomenon that sometime develops in culture appearing as overly succulent, crip water-logged or glassy tissues

The inability of a viable seeds to germinate under favorable conditions

Propagation which preserve the characteristers of the parent plant

Is the removal of water from the soil through surface run-off by flow through the soil to underground spaces

Actively dividing non-organized tissues of undifferentiated and differentiated cells often developing from injury (wounding) or in tissue cultures

Which of the following horticultural crops that can be used in the control of insect pests

Sciophytes are also known as

The plant part to be cultured in vitro is known as

This refers to a group of cells, tissue or plant derived from a single mother cell, tissue or plant through asexual means and is expected to be genetically identical

A rice floret has how many anthers

Example of plant propagated by root cutting

Corn will be planted at spaced 75cm between rows and 50 cm between hills and will be maintained at 2 plants per hill. What is the plant population per hectare?

In cleft grafting the wedge is located at the

Combining together a root stock and scion until they unite permanently

Air layering is also known as

A properly dried seed can be stored for longer duration with high germination

An example of recalcitrant seeds

For rapid rate of multiplication the type of propagation generally practiced is

The cultivation of apical meristems, particularly of shoot and apical meristem is known as

Dormancy is physiological effect of

It is not an example of classes of seed recognized by the Philippines Seed Certification scheme

Seedlings of rice on wet bed method are ready for transplanting in

An example of monoecious plant

An specialized form of grafting in which a single detached bud is used as the scion

The development of cells or tissues with a specific function and/or the regeneration of organs or organ-like structure (roots,shoots, etc) or embryo

An example of crop that needs light in order to germinate is

Another term for propagating material

"Cabuyao" is considered a variety of

A sterile plant with a functional roots and shoots developed in vitro is

Term used to describe seeds of some plants that could be kept viable for longer periods, provided they are properly dried and stored

It refers to the traditional system which begins with a primary tillage operation followed by several secondary tillage operations

Under the Philippine condition, what character is not routinely analyzed in the seed testing laboratory to become a certified seed

A white tag shall be attached to the bag of

The clonal true-to-type rapid propagation of plants in vitro is

A process done at 7 to 10 days before the vegetable seedlings are transplanted in which the full depth of the soil is cut with knife into blocks 5cm x 5cm to confine the roots in separate blocks

Magat, Pasig, and Peñananda are all varieties of

Which is not included as rogues in seed production

In seed germination, the zygote which gives rise to the embryo if formed by the fusion of A

Type of grafting for overgrown stocks too large for other grafting operation

The easiest method of artificial propagation

This type of layering was originated by the Chinese centuries ago

The capacity of a cell cultured in vitro to regenerate into a plant

A planting originating from meristem or other organ isolated in vitro

Crops that normally produce quality seeds in temperate countries

Method of plant propagation for discovery of new variety

Characterictics of a well prepared lowland field

Is the phenomena that, after a number of subcultures, cells can grow without the addition of hormones, although this was originally necessary

Sexual propagation is also known as

It is a usual method employed by farmers in planting the seeds evenly into the field

This law changed National Seed Industry Council to the Philippine Seedboard to the National Seed Industry Council as per Republic Act No

Any organic substance at low concentrations, promotes inhibits or modifies growth

In purity analysis of the seeds, pure seeds includes

Growth is manifested in the increase in the girth of the trunk. This growth is due to the division of a meristematic tissue called a

Marcotting is a method of

In determining when to irrigate

Term used to describe seeds od plants that could not be kept viable for a long time. It cannot withstand drying and should not permit to dry out before planting

Rose-sinensis is the species of this common ornamental plant

Method of artificial vegetative propagation involving regeneration of severed plant part (roots, leafs or stem, from the parent plant)

Production of various organs such as roots, shoot etc. from cells and tissue