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Saturday, January 11, 2020

68 facts about rice that you must know to face VIVA-VOCE

Picture: A bowl of rice (taken from: How to make basic white rice)

*Introduction


Rice has fed more people over a longer period of time than any other crop. As far back as 2500 B.C. rice has been documented in the history books as a source of food and for tradition as well. Beginning in China and the surrounding areas, its cultivation spread throughout Sri Lanka, and India. It was then passed onto Greece and areas of the Mediterranean. Rice spread throughout Southern Europe and to some of North Africa. From Europe rice was brought to the New World. From Protugal it was brought into Brazil and from Spain to Central and South America. 
Rice could be taken to many parts of the world due to its versatility. It is able to grow in the desert conditions of Saudi Arabia, in the wetland deltas of Southeast Asia in the flooded rice plains which we are most familiar with. 

Two species have emerged as our most popular cultivated rice. Oryza sativa and Oryza glaberrima, of these two species the more widely produced is O. sativa. From an early history in the Asian areas rice has spread and is now grown on all continents except Antarctica. Being able to grow in this wide spectrum of climates is the reason rice is one of the most widely eaten foods of the world. 

*Rice and Myth

Rice is an integral part of many cultures folklore. In Myanmar, the Kachins were sent forth from the center of the Earth with rice seeds and were directed to a country where life would be perfect and rice would grow well. In Bali, Lord Vishnu caused the Earth to give birth to rice and the God Indra taught people how to raise it. And in China rice is the gift of animals. Legend says after a disastrous flooding all plants had been destroyed and no food was available. One day a dog ran through the fields to the people with rice seeds hanging from his tail. The people planted the seeds, rice grew and hunger disappeared. All of these stories and many others have rice as their foundation and for generations people have believed these lores of Rice. 


**68 Interesting facts about rice

1) Rice is the source of one quarter of global per capita human energy. 

2) The average American consumes 25 lbs of rice per year, 4 of which come from drinking beer.

3) Eleven percent of the world’s arable land, are given over to rice cultivation – more than 500 million hectares.

4) The first documented account of rice was by a Chinese emperor around 2,800 BC.

5) Two Japanese car brands were named after rice: Toyota, meaning “Bountiful Rice Field,” and Honda, meaning “Main Rice Field”

6) Rice and its by-products are used for making straw and rope, paper, wine, crackers, beer, cosmetics, packing material and even toothpaste.

7) Rice straw is used to make coarse writing paper and is woven into sandals and hats.

8) Rice starch is often used in the last rinse of a laundry wash, to stiffen tablecloths and napkins once they are ironed.

9) A Malaysian aboriginal myth holds that all of the sky once lay flat on the Earth in the form of rice until the women of the tribe, wielding their long wooden rice brooms, heaved it upwards in the first harvest. From then on, rice fell back to Earth each year in time for a bountiful harvest.

10) Rice is still sometimes used to pay debts, wages and rent in some Asian rural areas.

11) It takes 5000 liters of water to produce 1 kilo of rice.

12) There are over 40,000 varieties of rice grown worldwide.

13) A pound of rice delivers four times the food energy as the same serving of potatoes or pasta Rice is widely believed to have arrived in the Americas in 1694 during the slave trade through South Carolina, probably originating from Madagascar.

14) More than 3 Billion people worldwide depend on Rice as their staple diet.

15) Rice is the predominant staple in 17 Asian, 9 American and 8 African countries.

16) Rice growing is believed to have originated in China and SE Asia around 10,000 BC

17) More than 70 percent of processed foods on grocery store shelves in the U.S. contain ingredients and oils from biotech crops, according to an industry estimate.

18) According to estimates from the 2006 crop year, rice production in the U.S. is valued at $1.88 billion, approximately half of which is expected to be exported.

19) The U.S. provides about 12 % of world rice trade.

20) The majority of domestic utilization of U.S. rice is direct food use (58%), while 16 percent is used in processed foods and beer respectively. The remaining 10 percent is found in pet food.

21) The Chinese word for rice is the same as the word for food.

22) In Thailand, when you call your family to a meal you say, “Eat rice.”

23) In Japan, the word for cooked rice is the same as the word for meal.

24) The custom of throwing a handful of rice at newly weds originally symbolized fertility and the blessing of many children; today it symbolizes prosperity and abundance.

25) Rice is the first food a new Indian bride offers her husband, perhaps instead of wedding cake; it is also the first food offered a newborn.

26) In Japan, it is believed that soaking rice before cooking releases the life energy and gives the eater a more peaceful soul.

27) To encourage Japanese children to eat all of their rice the grains are affectionately called little Buddhas.

28) In China, young girls with finicky appetites are warned that every grain of rice they leave in their rice bowls represents a pockmark on the face of their future husband.

29) In India, it is said that the grains of rice should be like two brothers – close, but not stuck together.

30) In China a typical greeting, instead of “How are you?” is “Have you had your rice today?” A greeting to which one is expected always to reply, “Yes.”

31) Most rice is consumed in the country where it is produced. Only 5 percent of the world’s total is exported. Thailand ships the most: about 5 million tons a year. The United States is second with nearly 3 million tons and Vietnam third, with 2 million tons.

32) Three of the world’s four most populous nations are rice-based societies—China, India, and Indonesia. Together, they have nearly 2.5 billion people.
33) Rice is the main food for half the people in the world.

34) There are over 29,000 grains of rice in one pound of long grain rice.

35) On cooking, rice swells to give at least three times its original weight.

36) One seed of rice yields more than 3,000 grains. It is the highest yielding cereal grain and can grow in many kinds of environments and soils, which is why it is grown on every continent except Antarctica.

37) Fifty percent of all of the world’s rice is eaten within 8 miles of where it is grown.

38) More than 1 billion people throughout the world are actively involved in growing rice.

39) Americans eat a little more than 20 pounds of rice per person each year. Asians eat as much as 300 pounds per person each year, while in the United Arab Emirates it is about 450 pounds, and in France about 10 pounds.

40) There are over 29,000 grains of rice in one pound (based on long grain white rice).

41) One serving of rice requires 25 gallons of water to grow.

42) Americans eat twice as much rice now than they did ten years ago.

43) The rice throwing ritual at weddings today symbolizes prosperity and abundance.

44) Ninety percent of the calories in rice come from complex carbohydrates or starch.

45) Rice is high in complex carbohydrates, contains almost no fat, is cholesterol free and is low in sodium.

46) Rice is a good source of protein, containing all eight essential amino acids.

47) Rice is low in the amino acid lysine, which is found in beans – making the classic combination of rice and beans a particularly healthy dish.

48) A half cup of cooked white rice provides 82 calories.

49) At the International Rice Research Institute Genetic Resources Center in the Philippines, there are 80,000 rice varieties in cold storage.

50) One seed of rice yields more than 3,000 grains.

51) Rice is one of the few foods in the world that is entirely non-allergenic and gluten-free.

52) RICE PAPER is not actually made from rice at all. It evolves from the pith of the rice paper tree grown in Asia.

53) RICE GLUE is still made in many countries by boiling ground rice.

54) Rice is planted on about 11% of the world’s cultivated land.

55) Only 6-7% of world rice production is traded internationally.

56) Wild rice is the only grain native to North America.

57) Rice provides 20 percent of the world’s dietary energy supply.

58) Rice triggers the neurotransmitter Serotonin in the brain that helps regulate and improve mood.

59) People who eat rice are less likely to be obese than those who do not.

60) Rice is easy for the body to fully digest and convert into energy, which explains why people are often hungry shortly after eating it.

61) To retain the nutrients, do not rinse the rice before or after cooking it.

62) In Japan, the words for rice and meal are the same.

63) In some instances, a deep-water strain of rice often called floating rice is grown. Floating rice can develop elongated stems capable of coping with water depths exceeding 2 meters (6.5 feet).

64) Rice was first introduced in California to feed the thousands of Chinese immigrants at the time of the Gold Rush.

65) Research has provided 75% of the rice varieties now grown.

66) Rice is cultivated in the cool Himalayan climates of Nepal and in the scorching deserts of Pakistan, Iran and Egypt.

67) Health experts urge us to cut down on fat and fill up with fruit and vegetables and starchy fiber rich foods like rice.

68) Leftover rice should be cooled quickly, then covered to prevent drying out or absorption of smells/flavors from other foods.


Acknowledgment:
*Rice: History **Legroup

Friday, January 10, 2020

SAU BLOG OF AGRICULTURE: Varietal performances of white maize as influenced...

SAU BLOG OF AGRICULTURE: Varietal performances of white maize as influenced...: White maize field at the Agronomy farm of Sher-e-Bangla Agricultural University (November, 2107 to April, 2018) VARIETAL PERFORMANCE ...

Performance of two exotic white maize hybrids as influenced by varying soil moisture regimes during seedling transplantation

The maize for human consumption
White maize cob (Captured at Agronomy farm of Sher-e-Bangla Agricultural University on 18 April, 2018)

PERFORMANCE OF TWO EXOTIC WHITE MAIZE HYBRIDS AS INFLUENCED BY VARYING SOIL MOISTURE REGIMES DURING SEEDLING TRANSPLANTATION

Md. Jafar Ullah, Md. Mahirul Islam, Kaniz Fatima, Md. Sohel Mahmud and M.A.Mannan

Abstract

The trial was initiated on Nov 01 of 2017 in randomized complete block design with three replications. Six treatments combining two varieties (PSC-121= V1 and Yangnuo-3000=V2), three moisture regimes (field capacity at sowing of the sown treatment = FC, wetting surface up to saturation of the soil at transplanting = WT and flooding at transplantation = FL) and two methods of planting (sown and transplanting). As such the six treatment combinations were V1FC, V2FC, V1WT, V2WT, V1FL and V2FL. Results showed that Transplanting had no remarkable effect on plant height (205-225 cm) and number of leaves per plant (14-16). However significant effect was seen on stem circumference at the base was affected showing reduced value in the v1WT (5.60 cm), distance of cob position from the base showing the farthest with V2FC (102 cm) and the nearest (73 cm.) with v1WT. Cob bearing node from the base was also affected showing cobs at the nearest (7.33) with v1WT while, farthest with V2FC (9.5). Treatments also showed wide ranges of cob length (15.00-17.78 cm), cob circumference (13.83-16.87), number of grain rows per cob (12.00-13.33) and number of grains per grain rows (27.89-36.33). In the individual ear a wider range in number of grain (360-482), grain weight (82.06-121.07 g), shell (rachis) weight (11.00-29.00 g) and chaff (husk) weight (6.4-13.78 g) was also observed. There was also wider ranges in per plant ear weight (99.50-162 g), stover dry weight (81.50-139.52 g) and total dry weight (194-296 g). Treatments significantly affected 100 seed weight (20.67-32.67 g), seed yield (6.565-10.048 t/ha) and harvest index (36.32-49.96%). The highest seed yield was observed with the treatment v1FC which was attributed to the heaviest seed of this treatment (32.67 g) and number of grains per ear (483). V2 FL had second highest seed yield (8.374 t/ha) showing 20% reduced seed yield due to transplantation. V1 out yielded V2 showing 10% higher yields which was attributed to bolder seeds of V1 and 12% higher harvest index than V2. V1 had 16% heavier grain weight per cob compared to V2. However, this variety had also over 200 and 80% heavier shell and chaffs respectively compared to that of V2. Likewise FC had 20 and 7% higher seed yields as compared to those of WT and FL. Transplanting remarkably reduced 100 seed weight (30%) which was attributed to the reduced seed yields due to seedling transplanting.

Key words: White maize, seedling transplantation, soil moisture.

Varietal performances of white maize as influenced by different weed management practices

White maize field at the Agronomy farm of Sher-e-Bangla Agricultural University (November, 2107 to April, 2018)

VARIETAL PERFORMANCE OF WHITE MAIZE AS INFLUENCED BY DIFFERENT WEED MANAGEMENT PRACTICES

M. A. Mannan, Md. Jafar Ullah, Md. Mahirul Islam Biswas, Mst. Shammi Akter and Tahmina Ahmmed

Abstract

The experiment was conducted at the Agronomy Farm of Sher-e-Bangla Agricultural University, Dhaka during November 2017 to April 2018 to examine the varietal performances of white maize as influenced by different level of herbicides. The experiment comprised two varieties viz. PSC-121 and Yangnuo-3000 designed as V1 and V2 respectively combined with six weed control measures viz. T0 = No weeding, T1= Carfentrazone + Isoproturon 500g @ 1.5 g ha-1 (Affinity 50.75% WP), T2= Carfentrazone + Isoproturon 500g @ 2.0 g ha-1 (Affinity 50.75% WP), T3= Pendimethalin @ 2.0 l ha-1 (Panida 50EC), T4= Pendimethalin @ 3.0 l ha-1 (Panida 50EC) and T5= One hand weeding at 45 DAS. The experiment was laid out in split plot design with three replications. The highest plant height, leaf area index, crop growth rate, leaf area duration, 100-seed weight (35.67 g), grains cob-1 (426.5), grain yield (8.817 t ha-1), stover yield (7.35 t ha-1) and biological yield (16.17 t ha-1), WCE (74.24%), the lowest weed density (85.92 no. m-2) and biomass (95.056 g m-2) were achieved from T4. On the other hand, all the parameters studied were found lowest with T0. In case of variety, PSC-121 showed the superior performance in terms of weed density, weed biomass, weed control efficiency, plant height, leaf area index, crop growth rate, leaf area duration, 100-seed weight (33.89 g), number of grains cob-1 (412.0), grain yield (7.75 t ha-1), stover yield (6.12 t ha-1) and biological yield (13.87 t ha-1) over YANGNUO-3000. However, in terms of interaction of weed control measures and variety T4V1 showed the superior findings regarding weed density, weed biomass, weed control efficiency, plant height, leaf area index, leaf area duration and crop growth rate. This combination treatment also showed the highest values in 100-seed weight (40.33 g), number of grains cob-1 (445.6), grain yield (9.63 t ha-1) and biological yield (16.72 t ha-1) although in some instances these values were not significantly higher than T4V2. The lowest performances in respect of all the parameters studied were recorded from T0V2 which was in some cases was statistically at par when compared with T0V1. Keywords: White maize, Weed, Herbicides, Hand weeding.

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