نتایج جستجو برای: sterile or male
تعداد نتایج: 3748009 فیلتر نتایج به سال:
Sorghum is an important forage crop in many cropping systems. Nitrate can accumulate the vegetative plant tissue to levels high enough that result fatality when fed ruminant livestock grown under nitrate conditions. If variation among inbred lines be documented for concentration, it may possible reduce accumulation within sorghum hybrids by selecting having lower accumulation. The goal of this ...
The melon fly, Bactrocera cucurbitae is of serious concern inflicting heavy losses to the horticultural industry. It attacks cucurbits right from primordial stages crop up harvest and causing yield loss 30 100%. Sterile Insect Technique a species-specific environmentally non-polluting method insect control that relies on sterilization males using gamma rays systemic release sterile in wild envi...
We present a deep, high spatial resolution (0.35 arcsec FWHM), near-infrared (1–2.5 μm) imaging survey of the Eagle Nebula, M 16, made with the VLT, centred on the famous elephant trunks. We compare these data with the existing HST optical images to search for evidence of ongoing or recent star formation in the trunks, and in particular in the 73 small evaporating gaseous globules (EGGs) on the...
general and specific combining ability of five fertile male (lines) and two male sterile (tester) of rice were evaluated for 10 important morphological traits as well as yield and yield components in a randomized complete block design with three replications. results revealed that general combining ability effects were highly significant (p
Genetic engineering is becoming a useful tool in the improvement of plants and plant-based raw materials. Varieties with value-added traits are developed for nonfood use in industrial and medical production, and different production lines must be kept separate. For good management practices, knowledge of relevant gene flow parameters is required. In the present study, pollen-mediated dispersal ...
Supplementation with lipopolysaccharide (LPS) from non-pathogenic Escherichia coli was found to enhance the adjuvant effects of a veterinary vaccine adjuvant (ISA 71VG®). Sperm immunization using 71VG as an adjuvant in the immature period induced infertility in 25% of male rats, whereas this increased to 62.5% after immunization with 71VG + LPS or Freund's complete adjuvant (FCA). Mean testicul...
The evolution of male-sterile individuals in hermaphroditic species represents the first step in the evolution of sex specialization. For male-sterile individuals to persist they must have some fitness advantage that compensates for their loss of the male function. Female fecundity also depends on environmental factors as those determining the likelihood of pollination and fertilization. Here w...
BACKGROUND Heterosis is a phenomenon that first-generation offspring perform better than their parents. Conventional breeding methods have their shortcomings. It would be optimal to construct inducible male sterile plants. RESULTS We developed a novel system for creating male sterile transgenic plants by downregulating the specific expression of the glyphosate tolerance CP4 EPSPS gene in male...
When given by direct s.c. injection into the Ehrlich solid carcinoma 1 week after s.c. tumor transfer, viable crude spores of Clostridium perfringens type A (attenuated mutant strain LNG11 ATCC 29348) inhibited tumor growth and significantly prolonged the life span of male outbred Swiss mice. Under these conditions a concentrated sterile supernatant of a C. perfringens culture proved to be slig...
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