संदेश

Difference between C3 and C4 plants.

C3 plants :- ० Found in all photosynthetic plants. ० Plants that use the cycle can be hydrophytic, mesophytic and xerophytic. ० Photoactive Stomata. ० High rate of Photorespiration. ० Normal Leaf anatomy. ० For the synthesis of glucose molecule or 6CO2 fixation :  12 NADPH and 18 ATPs are required. ० Single CO2 fixation occurs. ० Primary CO2 atmospheric acceptor RUBP. ० First stable product 3PGA. ० First enzyme involved RUBISCO. ० Carbon dioxide compensation point: 30-70PPM.   C4 Plants :- ० Only in tropical plants. ० Plants that use the cycle can be mesophytic. ० Photoactive Stomata. ० Photorespiration: less or negligible. ० Kranz anatomy. ० 12 NADPH and 30 ATPs are required. ० Double carbon dioxide fixation. ० Atmosphere Co2 acceptor- PEP(In mesophyll cell) and Metabloic Co2 acceptor-RUBP(In bundle sheath cell). ० First stable product OAA (Oxalo acetic acid). ० First enzyme involved PEP Carboxylase. ० CO2 compensation point: 10PPM.

FOREST UTILISATION

चित्र
FOREST UTILISATION   Botanical name of vetiver oil is Vetivera zizanioides. Palmrosa grass oil is known as Geraniol. Eg. of leaf tans are Anogeissus latifoila and Carissa spinarum. Eg. of fruit tans used for commercial utilization is Terminalia cheubla, Terminalia bellirica, Embilica officinalia and Acacia nilotica. Terminalia cheubla fruit tans is commercially called as Myrobalans. Eg. of bark tans :- Acacia nilotica, Cassia auriculata, Cassia fistula and Shorae robusta. The gum resin gamboges is obtained from Garcinia morella. Black dammer is Canaricum strictum. Rock dammer is Hopea odorata. White dammer (vellapine) is Vetaria indica. The Indian copal tree is Vetaria indica. Green dammer is Shorea thamuggaia. The regularly tapping resin tree is Pinus roxburghii (Chir pine). The blue pine (kail) tree is Pinus wallichiana. Khasi pine is Pinus kesiya. Acacia gum is commercially called as Gum Arabic. The Indian gum Arabic or blue gum is Acacia nilotica. Bengal kino (palas...

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Urgent Requirements  Bayer crop Science  Position : MDO Location : Alwar   Experience : 0-1 years Interested candidates kindly send their Resume on Whatsapp - 8441900102

Agroforestry Introduction for B.Sc. Agriculture

० The oldest known agroforestry system is shifting cultivation. ० Basic set of elements or components of agroforestry are tree, crops, animals. ० Silvi-agriculture refers to growing trees along with agricultural crops. ० Tree planted in silvi-agriculture should be oriented in the East West direction. ० “The Journal of Agroforestry Today” is published from Kenya. ० Indian Grassland and Fodder Research Institute is located at Jhansi. ० The ratio of height and spacing in a shelterbelt is 1 : 10. ० Hedgerow intercropping is otherwise called as alley cropping. ० Rotation of aerable crops with two or more years of sown pasture is called as lay farming. ० In north eastern hill region, shifting cultivation is called as Jhum. ० Most common agroforestry system practiced in arid regions are Agrisilvicultural Systems. ० Based on temporal arrangement of agroforestry system, “home garden” is the example of interpolated. ० Tree planted in silvi-agriculture should be oriented in the East West directio...

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