Alternate Selection Indices for Leaf Photosynthetic Rate in Greengram (Vigna radiata [L.] Wilczek) Cultivars     

R. Chandra Babu  M. Moosa Sheriff  V. Muralidharan  M. Seetharani 《Journal of Agronomy and Crop Science》1988,161(5):353-356

Significant differences were observed for leaf net photosynthetic rate, chlorophyll content, soluble protein content, nitrate reductase activity, stomatal frequency and specific leaf mass among ten greengram cultivars. Leaf net photosynthetic rate had significant positive correlation with soluble protein, nitrate reductase activity, stomatal frequency and specific leaf mass. Leaf net photosynthetic rate had no relationship with leaf chlorophyll content in greengram.  相似文献   

An Analysis of Grain Development in Oryza sativa L. Cultivars     

C. Vijayalakshmi    R. Chandra Babu  S. R. Sree Rangaswamy   《Journal of Agronomy and Crop Science》1988,161(3):181-184

A field study was conducted to determine if differences in grain filling rate and duration existed in two early cultivars of rice. There is no cultivar difference in duration of grain filling and grain matured in about 30 days from anthesis in both the cultivars. The effective grain filling period in rice is only 10 days between 3rd and 13th day from anthesis. There is significant difference in grain filling rate and is positively related to grain weight. Grain filling rate is more important than duration of filling for achieving higher grain size and thus yield in rice.  相似文献   

Functional Growth Model for Pod Development in Greengram and Blackgram     

R. Chandra Babu  C. Kailasam 《Journal of Agronomy and Crop Science》1988,160(5):356-358

Identification of readily measured traits that are associated with higher productivity of field crops is important to breeders. The objective of this study was to find out whether pod filling rate or duration of pod filling greatly decide final pod weight in greengram and blackgram. The effective pod filling duration is only 16 days in both the crops. Pod filling rate is more important than duration of pod development. Richards function is found to more closely fit the data on pod development from anthesis to maturity in both the species.  相似文献   

Renal and biochemical changes produced in broilers by high-protein, high-calcium, urea-containing, and vitamin-A-deficient diets   总被引：1，自引：0，他引：1  

M Chandra  B Singh  G L Soni  S P Ahuja 《Avian diseases》1984,28(1):1-11

Three hundred 18-day-old male chicks (Arbor Acre) were divided into five groups of 60 each and given high-protein (42.28%), high-calcium (3.37%), urea-containing (5%), vitamin-A-deficient, or control diets to study the effect of nutritional imbalances on the development of nephritis and related biochemical changes over 15 weeks. The first four diets increased the levels of glutamate oxaloacetate transaminase, glutamate pyruvate transaminase, uric acid, and nonprotein nitrogen in serum. Blood urea was increased by only the urea diet. Hypoglycemia and a decrease in hepatic glucose-6-phosphatase were also observed in chicks fed the first four diets. The vitamin-A-deficient diet resulted in a depletion of vitamin A in the liver and kidneys. These changes were directly correlated with the prolonged feeding of experimental diets and also with the severity of nephritis and degenerative changes in various organs. It was concluded that increasing the intake of nitrogen or calcium in order to increase production may in fact have the opposite effect, leading to degenerative changes in various tissues and to nephritis.  相似文献   

Causes of Mortality of Some Zoo Animals     

Balwant Singh  Nem Singh  Manik Chandra  D. V. Joshi 《Zoonoses and public health》1981,28(8):596-602

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Characterization of Mannheimia (Pasteurella) haemolytica leukotoxin interaction with bovine alveolar macrophage beta2 integrins     

Thumbikat P  Dileepan T  Kannan MS  Maheswaran SK 《Veterinary research》2005,36(5-6):771-786

Mannheimia (Pasteurella) haemolytica, the etiologic agent of bovine pneumonic mannheimiosis, produces an exotoxic leukotoxin. The leukotoxin (LktA) is a member of the RTX (repeats in toxin) family of bacterial cytolysins and is distinguished from other toxins by its unique target cell specificity to ruminant leukocytes occurring through binding to a specific receptor. We have demonstrated previously that the beta2 integrin LFA-1 is a receptor for LktA in bovine leukocytes and is involved in leukotoxin-induced biological effects. However the subunits within LFA-1 involved in binding to LktA, and post-binding signaling leading to cellular activation have not been well characterized. The purpose of our study was to pinpoint these precise subunits on bovine alveolar macrophages and to characterize their interaction with LktA. The results in this study indicate that although LktA can efficiently bind to the CD18 subunit of both LFA-1 and Mac-1, post-binding signaling events including elevation of intracellular calcium and CD18 tail phosphorylation are only observed through LFA-1. Furthermore, LktA also binds to the CD11a subunit of LFA-1. LktA binding to CD11a could be inhibited by a small molecule inhibitor of the I(inserted)-domain, the major ligand binding interface on CD11a. I-domain inhibition significantly blunts LktA-induced intracellular calcium elevation and tyrosine phosphorylation of the CD18 tail. Based on our results we suggest that LFA-1 serves as the functional leukotoxin receptor on bovine alveolar macrophages.  相似文献   

Effect of feeding terramycin egg formula (Pfizer) on egg production     

B N Verma  D B Mukherjee 《The Indian veterinary journal》1966,43(5):444-452

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An outbreak of photosensitisation in a flock of sheep     

B B Verma 《The Indian veterinary journal》1966,43(11):961-964

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Coexistence of antibodies against chronic respiratory disease, infectious laryngotracheitis, and infectious bronchitis on poultry farms of Uttar Pradesh, Andhra Pradesh, and Madras     

B S Malik  K C Verma 《Avian diseases》1969,13(4):695-699

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Fatal intraoperative pulmonary fat embolism during cemented total hip arthroplasty in a dog     

Terrell SP  Sundeep Chandra AM  Pablo LS  Lewis DD 《Journal of the American Animal Hospital Association》2004,40(4):345-348

A 3-year-old, German shepherd dog died suddenly during cemented total hip arthroplasty. Gross necropsy findings included severe pulmonary edema and congestion as well as congestion of the liver and kidneys. Acute pulmonary embolism was suspected as the cause of death. Microscopic examination of hematoxylin and eosin-stained, formalin-fixed, and oil red O-stained frozen tissue sections confirmed the presence of large numbers of fat globules in blood vessels in the lungs, liver, and kidneys. Fat embolism during total hip arthroplasty is a common surgical complication in humans, but it is uncommon in veterinary cases and is rarely a cause of death.  相似文献