Welcome toChinese corn Net
Add to Favorites || Chinese
National delicacy feeds corn account project and standard (try out)
From;    Author:Stand originally

National delicacy feeds corn account project and standard (try out)

One, bear period

(one) sow period: Point to the date that sow, with day / the month shows, similarly hereinafter.

(2) emerge period: What whole area has 50% is germinal come up out of land amount to 2 centimeters tall the date when.

(3) medicinal powder powdery period: The bough of plant male spic that whole area has 50% begins to come loose powdery date.

(4) spin period: Whole area has filament of 50% plant female spic to take out bract 3 centimeters date.

(5) Xian Guosui collects close period: Sweet corn in the 21 ~ after spin the 23 ~ after spin of corn of 24 day, glutinous are collected 26 days close and account.

(6) autumn: The Xie You of bud of plant fruit spic that whole area has 90% above is green become yellow, the date of seed bead sclerosis.

(7) bear period: Emerge is counted to mature total overhead.

2, plant character

(one) individual plant is expensive: In breast ripe period anthology have representative plant 20 individual plant of 10 ~ , measure the height to male spic top from the ground, beg its average, with centimeter express.

(2) spic tall: With survey individual plant tall undertake at the same time. Wear to spic of the first fruit from ground quantity the height of gnarl, beg its average, with centimeter express.

(3) individual plant: Smoke the range estimation after hero, cent is compact, half compact, inattentive wait model account.

(4) protect green degree: Xie Chenglu of the bine after range estimation is mature's lubricious percentage.

(5) rate of Shuang Sui plant: Knot of plant of the investigation after maturity has Shuang Sui (the 2nd spic is n) the percentage that individual plant number holds whole village plant to count.

(6) empty stalk rate: Investigate after maturity not result spic, or the percentage that have fruit the ear of grain and does not written guarantee the individual plant number of seed bead occupies whole village plant to count.

(7) tillering rate: The investigation after taking hero takes tillering individual plant to count the percentage that holds number of whole village plant.

(8) fight a gender: Date of lodging of the account after fresh gale rain, plant gradient is more than 45 degrees individual plant number to hold the percentage that whole village total individual plant counts, make clear a bine to fall or the root falls.

3, fruit spic character (10 spic measure general and random successive sampling)

(one) spic is long: Measure spic radical ministry to come spic top length, beg its average, with centimeter express.

(2) spic is thick: line of alternate with of head of sampling fruit spic, end, measure the diameter between Guo Suizhong, beg its average, with centimeter express.

(3) bald needle is long: Top of quantity fruit spic is not strong partial length, beg its average, with centimeter express.
Previous12 Next