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Production Know How Production Know How
Contributed by rkmp.drr on Fri, 2011-06-24 15:18
Reproductive phase includes Panicle Initiation, Booting, Heading and Flowering stages.
Contributed by rkmp.drr on Fri, 2011-06-24 15:15
1. This stage begins before panicle initiation or it occurs during the latter part of the tillering stage. Thus, there may be an overlap of stages 2 and 3.
2. The tillers continue to increase in number and height, with no appreciable senescence of leaves noticeable. Ground cover and canopy formation by the growing plants have advanced.
Contributed by rkmp.drr on Fri, 2011-06-24 15:12

1. This stage extends from the appearance of the first tiller to the maximum tiller number is reached.
2. Tillers emerge from the auxiliary buds of the nodes from main stem or other tillers and displace the leaf as they grow and develop.
Contributed by rkmp.drr on Fri, 2011-06-24 15:05

1. The seedling stage starts right after emergence and lasts until just before the first tiller appears. During this stage, seminal roots and up to five leaves develop.
2. As the seedling continues to grow after the first Prophyll leaf, two more leaves develop. Leaves continue to develop at the rate of 1 every 3-4 days during the early stage.
Contributed by rkmp.drr on Fri, 2011-06-24 14:44

1. Germination is defined as the appearance of white tip coleoptile and subsequent growth of it.
2. Seeds are pre-germinated after soaking for 24 hours and incubating for another 24 hours, after pre-germinate the radicle and plumule protrudes through the hull (sprouting).
Contributed by rkmp.drr on Fri, 2011-06-24 14:36
Vegetative Growth Phase includes Germination, Seedling, Tillering and Stem elongation stages.
Contributed by rkmp.drr on Fri, 2011-06-24 14:33

The growth of the rice plant is divided into three phases:
1. Vegetative (germination to panicle initiation);
2. Reproductive (panicle initiation to flowering);
3. Ripening (flowering to grain maturity)
Contributed by rkmp.drr on Fri, 2011-06-24 12:54
1. The rice fruit is a caryopsis with a single seed fused to the ripened ovary wall, pericarp. 2. Lemma and palea enclose the caryopsis. 3. The rice grain is the ripened ovary with lemma, palea, rachilla and sterile lemmas. 4. The rice grain is also known as rough rice. 5. The lemma, palea, sterile lemmas, rachilla and the awn constitute the hull or husk.
File Courtesy:
Rice - Jata S Nanda & Pawan K Agrawal
Contributed by rkmp.drr on Fri, 2011-06-24 12:50

Photo Courtesy:
http://www.knowledgebank.irri.org/morph/Panicle_and_Spikelets.html
Contributed by rkmp.drr on Fri, 2011-06-24 12:45

Photo Courtesy:
http://www.knowledgebank.irri.org/morph/Panicle_and_Spikelets.htm
Contributed by rkmp.drr on Fri, 2011-06-24 12:38

Photo Courtesy:
http://www.knowledgebank.irri.org/morph/Panicle_and_Spikelets.htm
Contributed by rkmp.drr on Fri, 2011-06-24 12:16
Contributed by rkmp.drr on Fri, 2011-06-24 12:09

1. The mature leaf has four main parts: the sheath, blade, ligule, and auricles. The leaf varies in length, form, tightness, and covers the stem. 2. These mature leaves are flat and vary in length and width according to variety and cultivation practices. 3. The collar is the junction of sheath and blade. The swollen zone at the sheath base where it joins the culm is the pulvinus.
Contributed by rkmp.drr on Fri, 2011-06-24 12:02

1. Tiller consists of root, stem (culm) and leaves having panicle or without panicle
Contributed by rkmp.drr on Fri, 2011-06-24 11:52
Contributed by rkmp.drr on Fri, 2011-06-24 11:39
Contributed by rkmp.drr on Fri, 2011-06-24 11:28
Contributed by shaik_moderator on Wed, 2011-06-22 16:45
1. Rice hybrids can be grown both in kharif as well as rabi seasons.
2. The long duration hybrids should not be cultivated during rabi season and even for medium duration hybrids.
3. Care should be taken to see that plantings are not delayed, otherwise the flowering may coincide with high temperatures in April/May, thus adversely affecting yields.
File Courtesy:
Agro Techniques for Hybrid Rice Cultivation and Seed Production - 2005, DRR Training Manual
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