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प्रश्न
A capsicum flower has 240 ovules in its ovary. But, it produces a fruit with only 180 viable seeds.
उत्तर
Ovules develop into viable seeds which are capable of germination under suitable environmental conditions. Viability is influenced by various conditions like humidity, temperature, and availability of oxygen. Viability can be lost due to:
(2) damage to the embryo
(3) denaturation of enzymes
(4) extremely high temperatures
(5) excessively dry weather
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संबंधित प्रश्न
Name the parts of an angiosperm flower in which development of male and female gametophyte take place.
List the three states the annuals and biennial angiosperms have to pass through during their life cycle.
In a flowering plant a microspore mother cell produces four male gametophytes while a megapore mother cell forms only one female gametophyte. Explain
Read the statement and answer the questions that follow.
A flower of brinjal has 520 ovules in its ovary. However, it produces a fruit with only 480 viable seeds.
(a) What could have prevented the rest of the 40 ovules from maturing into viable seeds? Explain giving a reason.
(b) Describe the development of a dicot embryo in a viable seed.
(c) Why certain angiospermic seed albuminous while others are exalbuminous? Explain.
Define Racemose inflorescence
Name the terminal stage of ageing in the life cycle of plants
Fragrant flowers with well developed nectaries are an adaptation for ______.
In a fertilized ovule, n, 2n, and 3n conditions occur respectively in ______
Which of the following statement is incorrect?
Male and female reproductive structures of the angiosperms are ______.
