Admin Table of Contents
- 1 What are the maturity signs of maize?
- 2 How can we determine physiological maturity in maize?
- 3 What is crop maturity?
- 4 What is maturity indices?
- 5 What are the types of maturity?
- 6 What are the indicators of seed maturity?
- 7 What is the plant indicator for corn physiological maturity?
- 8 Is there information on yield-maturity relationships in maize breeding and cultivation?
What are the maturity signs of maize?
| Crops | Maturity Symptoms and Criteria for harvesting |
|---|---|
| Finger millet | Brown coloured ears with hard grains |
| Maize | Less than 22 to 25 per cent moisture in grain Husk colour turns pale brown 25 to 30 days after tasseling |
| Wheat | About 15 per cent moisture in grain Grains in hard dough stage Yellowing of spikelets |
How can we determine physiological maturity in maize?
At physiological maturity, maximum grain dry weight has accumulated, corn is safe from frost, kernel moisture is 30 to 35 percent, and whole plant moisture is 60 to 65 percent. The plant indicator for corn physiological maturity is kernel black layer formation at the base of the kernel.
What are the types of maturity indices?
Some typical maturity indexes are described in following sections.
- Skin colour: This factor is commonly applied to fruits, since skin colour changes as fruit ripens or matures.
- Optical methods:
- Shape:
- Size:
- Aroma:
- Fruit opening:
- Leaf changes:
- Abscission:
What are the characteristics of commodities harvested at the proper stage of maturity?
Vegetables are harvested at harvest maturity stage, which will allow it to be at its peak condition when it reaches the consumer, it should be at a maturity that allows the produce to develop an acceptable flavour or appearance, it should be at a size required by the market, and should have an adequate shelf life.
What is crop maturity?
Maturity is the basis for determining the exact moment/stage to pick a crop. The stage at which the crops should be harvested has an important bearing on quality.
What is maturity indices?
Maturity indices are the sign or indication the readiness of the commodity for harvest. It is the basis for determining harvest date. Types of maturity. A. Physiological maturity: It refers to the stage in the development of the fruits and vegetables when maximum growth and maturation has occurred.
What is physiological maturity?
What is physiological maturity: Physiological maturity is defined as the time when dry matter accumulation in the kernels or seeds ceases, in other words the grain stops “filling.” Black layer formation at the tip of the kernel is a good indicator of physiological maturity in corn and grain sorghum.
How do you judge physiological maturity?
Physiological Maturity- The physiological maturity is judged of measure by rate of respiration and sugar: acid ratio. Eg. Citrus fruit is harvested when the appropriate TSS/acid ratio is reached.
What are the types of maturity?
Mental maturity. Mental maturity requires the development of the mind.
What are the indicators of seed maturity?
cerasoides the change in fruit colour from green to pale red or red, moisture content of seed between 29.8 ± 1.35 and 34.13 ± 1.50%, seed length between 9.68 ± 0.12 and 11.94 ± 0.17 mm and seed width between 5.18 ± 0.14 and 8.48 ± 0.05 mm appear to be reliable indicators of seed maturity.
What are the maturity index of the crop?
Maturity indices are the sign or indication the readiness of the commodity for harvest. It is the basis for determining harvest date. A. Physiological maturity: It refers to the stage in the development of the fruits and vegetables when maximum growth and maturation has occurred.
What are the methods of determining the maturity of crops?
Physical methods: Size, shape, color, texture, etc. Chemical methods: Total Soluble Solids (TSS), acidity, etc. Physiological methods: Respiration and ethylene production.
What is the plant indicator for corn physiological maturity?
The plant indicator for corn physiological maturity is kernel black layer formation at the base of the kernel. No further increases in yield will occur in the kernel after formation of the black layer. An easy method for monitoring kernel development and approaching physiological maturity is the kernel milk line .
Is there information on yield-maturity relationships in maize breeding and cultivation?
Information on yield-maturity relationships is important for maize breeding and cultivation, but it is seldom available in geographic zones where there are limited heat resources for summer maize. Two novel systematic crop yield models were put forward in terms of production efficiency.
How long does it take for maize to mature?
Tested maize cultivars’ growth duration varied from 76 to 121 days (Table 1 ), with a median of 101 days. Table 1 Maize maturity observations and their occurrence frequency, 2003–2017. In order to compare cultivars with different maturity days, they were divided into two groups, namely, A and B. Suppose that group A matured k days later than B.
How do you know when corn is ready to harvest?
Plant indicators for determining corn harvest date. Physiological maturity of corn is normally reached about 60 days after silking. At physiological maturity, maximum grain dry weight has accumulated, corn is safe from frost, kernel moisture is 30 to 35 percent, and whole plant moisture is 60 to 65 percent.