hsp Tag

22 Jul

Posted at 10:36h in Seed production

बाजरेे का संकर बीज उत्पादन Pearl millet is a highly cross-pollinated crop due to its protogyny condition of flower. In this condition stigma of the flower emerges first and mature before pollen shedding this condition of flower promote cross pollination. This nature of flowering facilitates the breeding of hybrids and open-pollinated varieties (OPVs). For hybrid seed production two methods are used first parental line growing in crossing block and harvest seed. The resultant seed contained approximately 40% hybrid seed when the two parental lines had synchronous flowering. This is called chance hybrid. In second method cytoplasmic-nuclear male-sterility lines like male-sterile lines Tift 23A and Tift 18A are used. These lines shows short stature, profuse...

04 Jul

Posted at 06:06h in Seed production

टमाटर का संकर (हाइब्रिड) बीज उत्पादन Tomato (Lycopersicum esculentus) is one of the most important vegetable crops grown extensively in the tropical and subtropical parts of the world. It is grown mainly for fresh market and to a little extent for processing. Increased attention is now being bestowed to breeding and production of tomato. Production of tomato can further be increased if improved cultural practices are combined with good quality seeds. Hybrid tomato varieties have many advantages compared to open-pollinated varieties. Hybrids usually produce higher yields. They generally mature earlier and more uniformly. Many hybrids have better fruit quality and disease resistance. With all of these advantages, many farmers prefer to sow...